Which DNA Test Should I Buy? And Why?

Posted on June 21, 2023 by Roberta Estes

Which DNA test should I buy, and why?

I receive questions like this often. As a reminder, I don’t take private clients anymore, which means I don’t provide this type of individual consulting or advice. However, I’m doing the next best thing! In this article, I’m sharing the step-by-step process that I utilize to evaluate these questions so you can use the process too.

It’s important to know what questions to ask and how to evaluate each situation to arrive at the best answer for each person.

Here’s the question I received from someone I’ll call John. I’ve modified the wording slightly and changed the names for privacy.

I’m a male, and my mother was born in Charleston, SC. My maternal grandmother’s maiden name was Jones and a paternal surname was Davis. The family was supposed to have been Black, Dutch, Pennsylvania Dutch, and Scots-Irish…only once was I told I was 3/16 Indian, with Davis being 3/4 and Jones being full Indian.

Do I have enough reasonable information to buy a test, and which one?

Please note that it’s common for questions to arrive without all the information you need to provide a sound answer – so it’s up to you to ask those questions and obtain clarification.

Multiple Questions

There are actually multiple questions here, so let me parse this a bit.

John never mentioned what his testing goal was.
He also never exactly said how the paternal line of Davis was connected, so I’ve made an assumption. For educational purposes, it doesn’t matter because we’re going to walk through the evaluation process, which is the same regardless.
John did not include a tree or a link to a tree, so I created a rudimentary tree to sort through this. I need the visuals and normally just sketch it out on paper quickly.
Does John have enough information to purchase a test?
If so, which test?

There is no “one size fits all” answer, so let’s discuss these one by one.

Easy Answers First

The answer to #4 is easy.

Anyone with any amount of information can purchase a DNA test. Adoptees do it all the time, and they have no prior information.

So, yes, John can purchase a test.

The more difficult question is which test, because that answer depends on John’s goals and whether he’s just looking for some quick information or really wants to delve into genealogy and learn. Neither approach is wrong.

Many people think they want a quick answer – and then quickly figure out that they really want to know much more about their ancestors.

I wrote an article titled DNA Results – First Glances at Ethnicity and Matching for new testers, here.

Goals

Based on what John said, I’m going to presume his goals are probably:

To prove or disprove the family oral history of Black, Dutch, Pennsylvania Dutch (which is actually German,) Scots-Irish, and potentially Native American.
John didn’t mention actual genealogy, which would include DNA matches and trees, so we will count that as something John is interested in secondarily. However, he may need genealogy records to reach his primary goal.

If you’re thinking, “The process of answering this seemingly easy question is more complex than I thought,” you’d be right.

Ethnicity in General

It sounds like John is interested in ethnicity testing. Lots of people think that “the answer” will be found there – and sometimes they are right. Often not so much. It depends.

The great news is that John really doesn’t need any information at all to take an autosomal DNA test, and it doesn’t matter if the test-taker is male or female.

To calculate each tester’s ethnicity, every testing company compiles their own reference populations, and John will receive different results at each of the major companies. Each company updates their ethnicity results from time to time as well, and they will change.

Additionally, each company provides different tools for their customers.

The ethnicity results at different companies generally won’t match each other exactly, and sometimes the populations look quite different.

Normally, DNA from a specific ancestor can be found for at least 5 or 6 generations. Of course, that means their DNA, along with the DNA from all of your other ancestors is essentially combined in a communal genetic “pot” of your chromosomes, and the DNA testing company needs to sort it out and analyze your DNA for ethnicity.

DNA descended from ancestors, and their populations, further back in people’s trees may not be discerned at all using autosomal DNA tests.

A much more specific “ethnicity” can be obtained for both the Y-DNA line, which is a direct patrilineal line for men (blue arrow,) and the mitochondrial DNA line (pink arrows,) which is a direct matrilineal line for everyone, using those specific tests.

We will discuss both of those tests after we talk about the autosomal tests available from the four major genealogy DNA testing companies. All of these tools can and should be used together.

Let’s Start with Native American

Let’s evaluate the information that John provided.

John was told that he “was 3/16 Indian, with Davis being 3/4 and Jones being full Indian.”

We need to evaluate this part of his question slightly differently.

I discussed this in the article, Ancestral DNA Percentages – How Much of Them is in You?

First, we need to convert generations to 16^ths.

You have two ancestors in your parent’s generation, four in your grandparents, and so forth. You have 16 great-great-grandparents. So, if John was 3/16^th Native, then three of his great-great-grandparents would have been fully Native, or an equivalent percentage. In other words, six ancestors in that generation could have been half-Native. Based on what John said, they would have come from his mother’s side of the tree. John is fortunate to have that much information to work with.

He told us enough about his tree that we can evaluate the statement that he might be 3/16^ths Native.

Here’s the tree I quickly assembled in a spreadsheet based on John’s information.

His father, at left, is not part of the equation based on the information John provided.

On his mother’s side, John said that Grandfather Davis is supposed to be three-quarters Native, which translates to 12/16^ths. Please note that it would be extremely beneficial to find a Y-DNA tester from his Davis line, like one of his mother’s brothers, for example.

John said that his Grandmother Jones is supposed to be 100% Native, so 16/16^ths.

Added together, those sum to 28/32, which reduces down to 14/16^th or 7/8^th for John’s mother.

John would have received half of his autosomal DNA from his mother and half from his non-Native father. That means that if John’s father is 100% non-Native, John would be half of 14/16^ths or 7/16^ths, so just shy of half Native.

Of course, we know that we don’t always receive exactly 50% of each of our ancestors’ DNA (except for our parents,) but we would expect to see something in the ballpark of 40-45% Native for John if his grandmother was 100% Native and his grandfather was 75%.

Using simple logic here, for John’s grandmother to be 100% Native, she would almost assuredly have been a registered tribal member, and the same if his grandfather was 75% Native. I would think that information would be readily available and well-known to the family – so I doubt that this percentage is accurate. It would be easy to check, though, on various census records during their lifetimes where they would likely have been recorded as “Indian.” They might have been in the special “Indian Census” taken and might be living on a reservation.

It should also be relatively easy to find their parents since all family members were listed every ten years in the US beginning with the 1850 census.

The simple answer is that if John’s grandparents had as much Native as reported, he would be more than 3/16^th – so both of these factoids cannot simultaneously be accurate. But that does NOT mean neither is accurate.

John could be 7/8^th or 40ish%, 3/16^th or 18ish%, or some other percentage. Sometimes, where there is smoke, there is fire. And that seems to be the quandary John is seeking to resolve.

Would Ethnicity/Population Tests Show This Much Native?

Any of the four major testing companies would show Native for someone whose percentage would be in the 40% or 18% ballpark.

The easiest ethnicities to tell apart from one another are continental-level populations. John also stated that he thinks he may also have Black ancestry, plus Dutch, Pennsylvania Dutch (German), and Scots-Irish. It’s certainly possible to verify that using genealogy, but what can DNA testing alone tell us?

How far back can we expect to find ethnicities descending from particular ancestors?

In this table, you can see at each generation how many ancestors you have in that generation, plus the percentage of DNA, on average, you would inherit from each ancestor.

All of the major DNA testing companies can potentially pick up small trace percentages, but they don’t always. Sometimes one company does, and another doesn’t. So, if John has one sixth-generation Native American ancestor, he would carry about 1.56% Native DNA, if any.

Sometimes a specific ethnicity is not found because, thanks to random recombination, you didn’t inherit any of that DNA from those ancestors. This is why testing your parents, grandparents, aunts, uncles, and siblings can be very important. They share your same ancestors and may have inherited DNA that you didn’t that’s very relevant to your search.
Sometimes it’s not found because the reference populations and algorithms at that testing company aren’t able to detect that population or identify it accurately, especially at trace levels. Every DNA testing company establishes their own reference populations and writes internal, proprietary ethnicity analysis algorithms.
Sometimes it’s not found because your ancestor wasn’t Native or from that specific population.
Sometimes it’s there, but your population is called something you don’t expect.

For example, you may find Scandinavian when your ancestor was from England or Ireland. The Vikings raided the British Isles, so while some small amount of Scandinavian is not what you expect, that doesn’t mean it‘s wrong. However, if all of your family is from England, it’s not reasonable to have entirely Scandinavian ethnicity results.

It’s also less likely as each generation passes by that the information about their origins gets handed down accurately to following generations. Most non-genealogists don’t know the names of their great-grandparents, let alone where their ancestors were from.

Using a 25-year average generation length, by the 4^th generation, shown in the chart above, you have 16 ancestors who lived approximately 100 years before your parents were born, so someplace in the mid-1800s. It’s unlikely for oral history from that time to survive intact. It’s even less likely from a century years earlier, where in the 7^th generation, you have 128 total ancestors.

The best way to validate the accuracy of your ethnicity estimates is by researching your genealogy. Of course, you need to take an ethnicity test, or two, in order to have results to validate.

Ethnicity has a lot more to offer than just percentages.

Best Autosomal Tests for Native Ethnicity

Based on my experience with people who have confirmed Native ancestry, the two best tests to detect Native American ethnicity, especially in smaller percentages, are both FamilyTreeDNA and 23andMe.

Click images to enlarge

In addition to percentages, both 23andMe and FamilyTreeDNA provide chromosome painting for ethnicity, along with segment information in download files. In other words, they literally paint your ethnicity results on your chromosomes.

They then provide you with a file with the “addresses” of those ethnicities on your chromosomes, which means you can figure out which ancestors contributed those ethnicity segments.

The person in the example above, a tester at FamilyTreeDNA, is highly admixed with ancestors from European regions, African regions and Native people from South America.

Trace amounts of Native American with a majority of European heritage would appear more like this.

You can use this information to paint your chromosome segments at DNAPainter, along with your matching segments to other testers where you can identify your common ancestors. This is why providing trees is critically important – DNA plus ancestor identification with our matches is how we confirm our ancestry.

This combination allows you to identify which Native (or another ethnicity) segments descended from which ancestors. I was able to determine which ancestor provided that pink Native American segment on chromosome 1 on my mother’s side.

I’ve provided instructions for painting ethnicity segments to identify their origins in specific ancestors, here.

Autosomal and Genealogy

You may have noticed that we’ve now drifted into the genealogy realm of autosomal DNA testing. Ethnicity is nice, but if you want to know who those segments came from, you’ll need:

Autosomal test matching to other people
To identify your common ancestor with as many matches as you can
To match at a company who provides you with segment information for each match
To work with DNAPainter, which is very easy

The great news is that you can do all of that using the autosomal tests you took for ethnicity, except at Ancestry who does not provide segment information.

Best Autosomal Test for Matching Other Testers

The best autosomal test for matching may be different for everyone. Let’s look at some of the differentiators and considerations.

If you’re basing a testing recommendation solely on database size, which will probably correlate to more matches, then the DNA testing vendors fall into this order:

If you’re basing that recommendation on the BEST, generally meaning the closest matches for you, there’s no way of knowing ahead of time. At each of the four DNA testing companies, I have very good matches who have not tested elsewhere. If I weren’t in all four databases, I would have missed many valuable matches.

If you’re basing that recommendation on which vendor began testing earliest, meaning they have many tests from people who are now deceased, so you won’t find their autosomal tests in other databases that don’t accept uploads, the recommended testing company order would be:

FamilyTreeDNA with tests from people who originally tested two decades ago.
23andMe
Ancestry
MyHeritage

If you’re basing that recommendation on matches to people who live in other countries, the order would be:

Ancestry and 23andMe are very distant third/fourth because they did not sell widely outside the US initially and still don’t sell in as many countries as the others, meaning their testers’ geography is more limited. However, Ancestry is also prevalent in the UK.

If you’re basing that recommendation on segment information and advanced tools that allow you to triangulate and confirm your genetic link to specific ancestors, the order would be:

Ancestry does NOT provide any segment information.

If you’re basing that recommendation on unique tools provided by each vendor, every vendor has something very beneficial that the others don’t.

In other words, there’s really no clear-cut answer for which single autosomal DNA test to order. The real answer is to be sure you’re fishing in all the ponds. The fish are not the same. Unique people test at each of those companies daily who will never be found in the other databases.

Test at or upload your DNA to all four DNA testing companies, plus GEDmatch. Step-by-step instructions for downloading your raw data file and uploading it to the DNA testing companies who accept uploads can be found, here.

Test or Upload

Not all testing companies accept uploads of raw autosomal DNA data files from other companies. The good news is that some do, and it’s free to upload and receive matches.

Two major DNA testing companies DO NOT accept uploads from other companies. In other words, you have to test at that company:

Two testing companies DO accept uploads from the other three companies. Uploads and matching are free, and advanced features can be unlocked very cost effectively.

FamilyTreeDNA – free matching and $19 unlock for advanced features
MyHeritage – free matching and $29 unlock.for advanced features

I recommend testing at both 23andMe and Ancestry and uploading one of those files to both FamilyTreeDNA and MyHeritage, then purchasing the respective unlocks.

GEDmatch

GEDmatch is a third-party matching site, not a DNA testing company. Consider uploading to GEDmatch because you may find matches from Ancestry who have uploaded to GEDmatch, giving you access to matching segment information.

Other Types of DNA

John provided additional information that may prove to be VERY useful. Both Y-DNA and mitochondrial DNA can be tested as well and may prove to be more useful than autosomal to positively identify the origins of those two specific lines.

Let’s assume that John takes an autosomal test and discovers that indeed, the 3/16^th Native estimate was close. 3/16^th equates to about 18% Native which would mean that three of his 16 great-great-grandparents were Native.

John told us that his Grandmother Jones was supposed to be 100% Native.

At the great-great-grandparent level, John has 16 ancestors, so eight on his mother’s side, four from maternal grandmother Jones and four from his maternal grandfather Davis.

John carries the mitochondrial DNA of his mother (red boxes and arrows,) and her mother, through a direct line of females back in time. John also carries the Y-DNA of his father (dark blue box, at left above, and blue arrows below.)

Unlike autosomal DNA which is admixed in every generation, mitochondrial DNA (red arrows) is inherited from that direct matrilineal line ONLY and never combines with the DNA of the father. Mothers give their mitochondrial DNA to both sexes of their children, but men never contribute their mitochondrial DNA to offspring. Everyone has their mother’s mitochondrial DNA.

Because it never recombines with DNA from the father, so is never “watered down,” we can “see” much further back in time, even though we can’t yet identify those ancestors.

However, more importantly, in this situation, John can test his own mitochondrial DNA that he inherited from his mother, who inherited it from her mother, to view her direct matrilineal line.

John’s mitochondrial DNA haplogroup that will be assigned during testing tells us unquestionably whether or not his direct matrilineal ancestor was Native on her mother’s line, or not. If not, it may well tell us where that specific line originated.

You can view the countries around the world where Y-DNA haplogroups are found, here, and mitochondrial haplogroups, here.

If John’s mitochondrial DNA haplogroup is Native, that confirms that one specific line is Native. If he can find other testers in his various lines to test either their Y-DNA or mitochondrial DNA, John can determine if other ancestors were Native too. If not, those tests will reveal the origins of that line, separate from the rest of his genealogical lines.

Although John didn’t mention his father’s line, if he takes a Y-DNA test, especially at the Big Y-70 0 level, that will also reveal the origins of his direct paternal line. Y-DNA doesn’t combine with the other parent’s DNA either, so it reaches far back in time too.

Y-DNA and mitochondrial DNA tests are laser-focused on one line each, and only one line. You don’t have to try to sort it out of the ethnicity “pot,” wondering which ancestor was or was not Native.

My Recommendation

When putting together a testing strategy, I recommend taking advantage of free uploads and inexpensive unlocks when possible.

To confirm Native American ancestry via ethnicity testing, I recommend testing at 23andMe and uploading to FamilyTreeDNA, then purchasing the $19 unlock. The free upload and $19 unlock are less expensive than testing there directly.
For matching, I recommend testing at Ancestry and uploading to MyHeritage, then unlocking the MyHeritage advanced features for $29, which is less expensive than retesting. Ancestry does not provide segment information, but MyHeritage (and the others) do.

At this point, John will have taken two DNA tests, but is now in all four databases, plus GEDmatch if he uploads there.

For genealogy research on John’s lines to determine whether or not his mother’s lines were Native, I recommend an Ancestry and a MyHeritage records subscription, plus using WikiTree, which is free.
To determine if John’s mother’s direct matrilineal female line was Native, I recommend that John order the mitochondrial DNA test at FamilyTreeDNA.
When ordering multiple tests, or uploading at FamilyTreeDNA, be sure to upload/order all of one person’s tests on the same DNA kit so that those results can be used in combination with each other.

Both males and females can take autosomal and mitochondrial DNA tests.

To discover what he doesn’t know about his direct paternal, meaning John’s surname line – I recommend the Big Y-700 test at FamilyTreeDNA.

Only males can take a Y-DNA test, so women would need to ask their father, brother, or paternal uncle, for example, to test their direct paternal line.

If John can find a male Davis from his mother’s line, I recommend that he purchase the Big Y-700 test at FamilyTreeDNA for that person, or check to see if someone from his Davis line may have already tested by viewing the Davis DNA Project. Like with mitochondrial DNA, the Y-DNA haplogroup will tell John the origins of his direct Davis male ancestor – plus matching of course. He will be able to determine if they were Native, and if not, discover the origins of the Davis line.
For assigning segments to ancestors and triangulating to confirm descent from a common ancestor, I recommend 23andMe, MyHeritage, FamilyTreeDNA and GEDmatch, paired with DNAPainter as a tool.

Shopping and Research List

Here are the tests and links recommended above:

23andMe
Ancestry
MyHeritage Upload with free matching, then $29 unlock
FamilyTreeDNA Upload with free matching, then $19 unlock
GEDmatch free upload, then $9.95 monthly subscription for advanced tools if needed
FamilyTreeDNA mitochondrial DNA test (using the same kit number as the upload)
FamilyTreeDNA Big Y-700 for John and also for Davis male tester if he can find one
DNAPainter for uploading ethnicity painting plus segments that can be identified to specific ancestors to determine which ancestors provided which ethnicity segments
MyHeritage records subscription (free trial) (for genealogy research)
Ancestry subscription for genealogy research

More Than He Asked

I realize this answer is way more than John expected or even knew to ask. That’s because there is often no “one” or “one best” answer. There are many ways to approach the question after the goal is defined, and the first “answer” received may be a bit out of context.

For example, let’s say John has 2% Native ancestry and took a test at a vendor who didn’t detect it. John would believe he had none. But a different vendor might find that 2%. If it’s on his mother’s direct matrilineal line, mitochondrial DNA testing will confirm, or refute Native, beyond any doubt, regardless of autosomal ethnicity results – but only for that specific ancestral line.

Autosomal DNA can suggest Native across all your DNA, but Y-DNA and mitochondrial DNA confirm it for each individual ancestor.

Even when autosomal testing does NOT show Native American, or African, for example, it’s certainly possible that it’s just too far back in time or has not been passed down during random recombination, but either Y-DNA or mitochondrial DNA will unquestionably confirm (or refute) the ancestry in question if the right person is tested.

This is exactly why I attempt to find a cousin who descends appropriately from every ancestor and provide testing scholarships. It’s important to obtain Y-DNA and mitochondrial DNA information for each ancestor.

Which Test Should I Order?

What steps will help you decide which test or tests to take?

Define your testing goal.
Determine if your Y-DNA or mitochondrial DNA will help answer the question.
Determine if you need to find ancestors another generation or two back in time to get the most benefit from DNA testing. In our example, if John discovered that both of his grandparents were enrolled tribal members, that’s huge, and the tribe might have additional information about his family.
Subscribe to Ancestry and MyHeritage records collections as appropriate to perform genealogical research. Additional information not only provides context for your family, it also provides you with the ability to confirm or better understand your ethnicity results.
Extend your tree so that you can obtain the best results from the three vendors who support trees; Ancestry, FamilyTreeDNA, and MyHeritage. All three use trees combined with DNA tests to provide you with additional information.
Order 23andMe and Ancestry autosomal DNA tests.
Either test at or upload one of those tests to MyHeritage, FamilyTreeDNA, and GEDmatch.
If a male, order the Big Y-700 DNA test. Or, find a male from your ancestral line who has taken or will take that test. I always offer a testing scholarship and, of course, share the exciting results!
Order a mitochondrial DNA test for yourself and for appropriately descended family members to represent other ancestors. Remember that your father (and his siblings) all carry your paternal grandmother’s mitochondrial DNA. That’s often a good place to start after testing your own DNA.
If your parents or grandparents are alive, or aunts and uncles, test their autosomal DNA too. They are (at least) one generation closer to your ancestors than you are and will carry more of your ancestors’ DNA.
Your siblings will carry some of your ancestors’ DNA that you do not, so test them too if both of your parents aren’t available for testing.

Enjoy!!!

_____________________________________________________________

Follow DNAexplain on Facebook, here.

Share the Love!

You’re always welcome to forward articles or links to friends and share on social media.

If you haven’t already subscribed (it’s free,) you can receive an email whenever I publish by clicking the “follow” button on the main blog page, here.

You Can Help Keep This Blog Free

I receive a small contribution when you click on some of the links to vendors in my articles. This does NOT increase the price you pay but helps me to keep the lights on and this informational blog free for everyone. Please click on the links in the articles or to the vendors below if you are purchasing products or DNA testing.

Thank you so much.

DNA Purchases and Free Uploads

FamilyTreeDNA – Y, mitochondrial and autosomal DNA testing
MyHeritage DNA – Autosomal DNA test
MyHeritage FREE DNA file upload – Upload your DNA file from other vendors free
AncestryDNA – Autosomal DNA test
23andMe Ancestry – Autosomal DNA only, no Health
23andMe Ancestry Plus Health

Genealogy Products and Services

MyHeritage FREE Tree Builder – Genealogy software for your computer
MyHeritage Subscription with Free Trial
Legacy Family Tree Webinars – Genealogy and DNA classes, subscription-based, some free
Legacy Family Tree Software – Genealogy software for your computer
Newspapers.com – Search newspapers for your ancestors
NewspaperArchive – Search different newspapers for your ancestors

My Book

DNA for Native American Genealogy – by Roberta Estes, for those ordering the e-book from anyplace, or paperback within the United States
DNA for Native American Genealogy – for those ordering the paperback outside the US

Genealogy Books

Genealogical.com – Lots of wonderful genealogy research books

Genealogy Research

Legacy Tree Genealogists – Professional genealogy research

DNA: In Search of…Full and Half-Siblings

Posted on August 29, 2022 by Roberta Estes

This is the fifth article in our series of articles about searching for unknown close family members, specifically; parents, grandparents, or siblings. However, these same techniques can be applied by genealogists to identify ancestors further back in time as well.

I introduced the “In Search of” series in the article, DNA: In Search of…New Series Launches.
In the second article, DNA: In Search of…What Do You Mean I’m Not Related to My Family? – and What Comes Next? we discussed the discovery that something was amiss when you don’t match a family member that you expect to match, then how to make sure a vial or upload mix-up didn’t happen. Next, I covered the basics of the four kinds of DNA tests you’ll be able to use to solve your mystery.
In the third article, In Search of…Vendor Features, Strengths, and Testing Strategies, we discussed testing goals and strategies, including testing with and uploading to multiple autosomal DNA vendors, Y DNA, and mitochondrial DNA testing. We reviewed the vendor’s strengths and the benefits of combining vendor information and resources.
In the fourth article, DNA: In Search of…Signs of Endogamy, we discussed the signs of endogamy and various ways to determine if you or your recent ancestors descend from an endogamous population.

Please note that if a family member has tested and you do NOT see their results, ask them to verify that they have chosen to allow matching and for other people to view them in their match list. That process varies at different vendors.

You can also ask if they can see you in their results.

All Parties Need to Test

Searching for unknown siblings isn’t exactly searching, because to find them, they, themselves, or their descendant(s) must have taken a DNA test at the same vendor where you tested or uploaded a DNA file.

You may know through any variety of methods that they exist, or might exist, but if they don’t take a DNA test, you can’t find them using DNA. This might sound obvious, but I see people commenting and not realizing that the other sibling(s) must test too – and they may not have.

My first questions when someone comments in this vein are:

Whether or not they are positive their sibling actually tested, meaning actually sent the test in to the vendor, and it was received by the testing company. You’d be surprised how many tests are living in permanent residence on someone’s countertop until it gets pushed into the drawer and forgotten about.
If the person has confirmed that their sibling has results posted. They may have returned their test, but the results aren’t ready yet or there was a problem.
AND that both people have authorized matching and sharing of results. Don’t hesitate to reach out to your vendor’s customer care if you need help with this.

Sibling Scenarios

The most common sibling scenarios are when one of two things happens:

A known sibling tests, only to discover that they don’t match you in the full sibling range, or not at all, when you expected they would
You discover a surprise match in the full or half-sibling range

Let’s talk about these scenarios and how to determine:

If someone is a sibling
If they are a full or half-sibling
If a half-sibling, if they descend from your mother or father

As with everything else genetic, we’ll be gathering and analyzing different pieces of evidence along the way.

Full and Half-Siblings

Just to make sure we are all on the same page:

A full sibling is someone who shares both parents with you.
A half-sibling is someone who shares one parent with you, but not the other parent.
A step-sibling is someone who shares no biological parents with you. This situation occurs when your parent marries their parent, after you are both born, and their parent becomes your step-parent. You share neither of your biological parents with a step-sibling, so you share no DNA and will not show up on each other’s match lists.
A three-quarters sibling is someone with whom you share one parent, but two siblings are the other parent. For example, you share the same mother, but one brother fathered you, and your father’s brother fathered your sibling. Yes, this can get very messy and is almost impossible for a non-professional to sort through, if even then. (This is not a solicitation. I do not take private clients.) We will not be addressing this situation specifically.

Caution

With any search for unknown relatives, you have no way of knowing what you will find.

In one’s mind, there are happy reunions, but you may experience something entirely different. Humans are human. Their stories are not always happy or rosy. They may have made mistakes they regret. Or they may have no regrets about anything.

Your sibling may not know about you or the situation under which you, or they, were born. Some women were victims of assault and violence, which is both humiliating and embarrassing. I wrote about difficult situations, here.

Your sibling or close family member may not be receptive to either you, your message, or even your existence. Just be prepared, because the seeking journey may not be pain-free for you or others, and may not culminate with or include happy reunions.

On the other hand, it may.

Please step back and ponder a bit about the journey you are about to undertake and the possible people that may be affected, and how. This box, once opened, cannot be closed again. Be sure you are prepared.

On the other hand, sometimes that box lid pops off, and the information simply falls in your lap one day when you open your match list, and you find yourself sitting there, in shock, staring at a match, trying to figure out what it all means.

Congratulations, You Have a Sibling!

This might not be exactly what runs through your mind when you see that you have a very close match that you weren’t expecting.

The first two things I recommend when making this sort of discovery, after a few deep breaths, a walk, and a cup of tea, are:

Viewing what the vendor says
Using the DNAPainter Shared cM Relationship Chart

Let’s start with DNAPainter.

DNAPainter

DNAPainter provides a relationship chart, here, based on the values from the Shared cM Project.

You can either enter a cM amount or a percentage of shared DNA. I prefer the cM amount, but it doesn’t really matter.

I’ll enter 2241 cM from a known half-sibling match. To enter a percent, click on the green “enter %.”

As you can see, statistically speaking, this person is slightly more likely to be a half-sibling than they are to be a full sibling. In reality, they could be either.

Looking at the chart below, DNAPainter highlights the possible relationships from the perspective of “Self.”

The average of all the self-reported relationships is shown, on top, so 2613 for a full sibling. The range is shown below, so 1613-3488 for a full sibling.

In this case, there are several possibilities for two people who share 2241 cM of DNA.

I happen to know that these two people are half-siblings, but if I didn’t, it would be impossible to tell from this information alone.

The cM range for full siblings is 1613-3488, and the cM range for half-siblings is 1160-2436.

The lower part of the matching range, from 1160-1613 cM is only found in half-siblings.
The portion of the range from 1613-2436 cM can be either half or full siblings.
The upper part of the range, from 2436-3488 cM is only found in full siblings.

If your results fall into the center portion of the range, you’re going to need to utilize other tools. Fortunately, we have several.

If you’ve discovered something unexpected, you’ll want to verify using these tools, regardless. Use every tool available. Ranges are not foolproof, and the upper and lower 10% of the responses were removed as outliers. You can read more about the shared cM Project, here and here.

Furthermore, people may be reporting some half-sibling relationships as full sibling relationships, because they don’t expect to be half-siblings, so the ranges may be somewhat “off.”

Relationship Probability Calculator

Third-party matching database, GEDmatch, provides a Relationship Probability Calculator tool that is based on statistical probability methods without compiled user input. Both tools are free, and while I haven’t compared every value, both seem to be reasonably accurate, although they do vary somewhat, especially at the outer ends of the ranges.

When dealing with sibling matches, if you are in all four databases, GEDmatch is a secondary resource, but I will include GEDmatch when they have a unique tool as well as in the summary table. Some of your matches may be willing to upload to GEDmatch if the vendor where you match doesn’t provide everything you need and GEDmatch has a supplemental offering.

Next, let’s look at what the vendors say about sibling matches.

Vendors

Each of the major vendors reports sibling relationships in a slightly different way.

Sibling Matches at Ancestry

Ancestry reports sibling relationships as Sister or Brother, but they don’t say half or full.

If you click on the cM portion of the link, you’ll see additional detail, below

Ancestry tells you that the possible relationships are 100% “Sibling.” The only way to discern the difference between full and half is by what’s next.

If the ONLY relationship shown is Sibling at 100%, that can be interpreted to mean this person is a full sibling, and that a half-sibling or other relationship is NOT a possibility.

Ancestry never stipulates full or half.

The following relationship is a half-sibling at Ancestry.

Ancestry identifies that possible range of relationships as “Close Family to First Cousin” because of the overlaps we saw in the DNAPainter chart.

Clicking through shows that there is a range of possible relationships, and Ancestry is 100% sure the relationship is one of those.

DNAPainter agrees with Ancestry except includes the full-sibling relationship as a possibility for 1826 cM.

Sibling Matches at 23andMe

23andMe does identify full versus half-siblings.

DNAPainter disagrees with 23andMe and claims that anyone who shares 46.2% of their DNA is a parent/child.

However, look at the fine print. 23andMe counts differently than any of the other vendors, and DNAPainter relies on the Shared cM Project, which relies on testers entering known relationship matching information. Therefore, at any other vendor, DNAPainter is probably exactly right.

Before we understand how 23andMe counts, we need to understand about half versus fully identical segments.

To determine half or full siblings, 23andMe compares two things:

The amount of shared matching DNA between two people
Fully Identical Regions (FIR) of DNA compared to Half Identical Regions (HIR) of DNA to determine if any of your DNA is fully identical, meaning some pieces of you and your sibling’s DNA is exactly the same on both your maternal and paternal chromosomes.

Here’s an example on any chromosome – I’ve randomly selected chromosome 12. Which chromosome doesn’t matter, except for the X, which is different.

Your match isn’t broken out by maternal and paternal sides. You would simply see, on the chromosome browser, that you and your sibling match at these locations, above.

In reality, though, you have two copies of each chromosome, one from Mom and one from Dad, and so does your sibling.

In this example, Mom’s chromosome is visualized on top, and Dad’s is on the bottom, below, but as a tester, you don’t know that. All you know is that you match your sibling on all of those blue areas, above.

However, what’s actually happening in this example is that you are matching your sibling on parts of your mother’s chromosome and parts of your father’s chromosome, shown above as green areas

23andMe looks at both copies of your chromosome, the one you inherited from Mom, on top, and Dad, on the bottom, to see if you match your sibling on BOTH your mother’s and your father’s chromosomes in that location.

I’ve boxed the green matching areas in purple where you match your sibling fully, on both parents’ chromosomes.

If you and your sibling share both parents, you will share significant amounts of the same DNA on both copies of the same chromosomes, meaning maternal and paternal. In other words, full siblings share some purple fully identical regions (FIR) of DNA with each other, while half-siblings do not (unless they are also otherwise related) because half-siblings only share one parent with each other. Their DNA can’t be fully identical because they have a different parent that contributed the other copy of their chromosome.

	Total Shared DNA	Fully Identical DNA from Both Parents
Full Siblings	~50%	~25%
Half Siblings	~25%	0

Full siblings are expected to share about 50% of the same DNA. In other words, their DNA will match at that location. That’s all the green boxed locations, above.
Full siblings are expected to share about 25% of the same DNA from BOTH parents at the same location on BOTH copies of their chromosomes. These are fully identical regions and are boxed in purple, above.

You’ll find fully identical segments about 25% of the time in full siblings, but you won’t find fully identical segments in half-siblings. Please note that there are exceptions for ¾ siblings and endogamous populations.

You can view each match at 23andMe to see if you have any completely identical regions, shown in dark purple in the top comparison of full siblings. Half siblings are shown in the second example, with less total matching DNA and no FIR or completely identical regions.

Please note that your matching amount of DNA will probably be higher at 23andMe than at other companies because:

23andMe includes the X chromosome in the match totals
23andMe counts fully identical matching regions twice. For full siblings, that’s an additional 25%

Therefore, a full sibling with an X match will have a higher total cM at 23andMe than the same siblings elsewhere because not only is the X added into the total, the FIR match region is added a second time too.

Fully Identical Regions (FIR) and Half Identical Regions (HIR) at GEDmatch

At GEDMatch, you can compare two people to each other, with an option to display the matching information and a painted graphic for each chromosome that includes FIR and HIR.

If you need to know if you and a match share fully identical regions and you haven’t tested at 23andMe, you can both upload your DNA data file to GEDmatch and use their One to One Autosomal DNA Comparison.

On the following page, simply enter both kit numbers and accept the defaults, making sure you have selected one of the graphics options.

While GEDmatch doesn’t specifically tell you whether someone is a full or half sibling, you can garner additional information about the relationship based on the graphic at GEDmatch.

GEDMatch shows both half and fully identical regions.

The above match is between two full siblings using a 7 cM threshold. The blue on the bottom bar indicates a match of 7 cM or larger. Black means no match.

The green regions in the top bar indicate places where these two people carry the same DNA on both copies of their chromosome 1. This means that both people inherited the same DNA from BOTH parents on the green segments.

In the yellow regions, the siblings inherited the same DNA from ONE parent, but different DNA in that region from the other parent. They do match each other, just on one of their chromosomes, not both.

Without a tool like this to differentiate between HIR and FIR, you can’t tell if you’re matching someone on one copy of your chromosome, or on both copies.

In the areas marked with red on top, which corresponds to the black on the bottom band, these two siblings don’t match each other because they inherited different DNA from both parents in that region. The yellow in that region is too scattered to be significant.

Full siblings generally share a significant amount of FIR, or fully identical regions of DNA – about 25%.

Half siblings will share NO significant amount of FIR, although some will be FIR on very small, scattered green segments simply by chance, as you can see in the example, below.

This half-sibling match shares no segments large enough to be a match (7 cM) in the black section. In the blue matching section, only a few small green fragments of DNA match fully, which, based on the rest of that matching segment, must be identical by chance or misreads. There are no significant contiguous segments of fully identical DNA.

When dealing with full or half-siblings, you’re not interested in small, scattered segments of fully identical regions, like those green snippets on chromosome 6, but in large contiguous sections of matching DNA like the chromosome 1 example.

GEDmatch can help when you match when a vendor does not provide FIR/HIR information, and you need additional assistance.

Next, let’s look at full and half-siblings at FamilyTreeDNA

Sibling Matches at FamilyTreeDNA

FamilyTreeDNA does identify full siblings.

Relationships other than full siblings are indicated by a range. The two individuals below are both half-sibling matches to the tester.

The full range when mousing over the relationship ranges is shown below.

DNAPainter agrees except also gives full siblings as an option for the two half-siblings.

FamilyTreeDNA also tells you if you have an X match and the size of your X match.

We will talk about X matching in a minute, which, when dealing with sibling identification, can turn out to be very important.

Sibling Matches at MyHeritage

MyHeritage indicates brother or sister for full siblings

MyHeritage provides other “Estimated relationships” for matches too small to be full siblings.

DNAPainter’s chart agrees with this classification, except adds additional relationship possibilities.

Be sure to review all of the information provided by each vendor for close relationships.

View Close Known Relationships

The next easiest step to take is to compare your full or half-sibling match to known close family members from your maternal and paternal sides, respectively. The closer the family members, the better.

It’s often not possible to determine if someone is a half sibling or a full sibling by centiMorgans (cMs) alone, especially if you’re searching for unknown family members.

Let’s start with the simplest situation first.

Let’s say both of your parents have tested, and of course, you match both of them as parents.

Your new “very close match” is in the sibling range.

The first thing to do at each vendor is to utilize that vendor’s shared matches tool and see whether your new match matches one parent, or both.

Here’s an example.

Close Relationships at FamilyTreeDNA

This person has a full sibling match, but let’s say they don’t know who this is and wants to see if their new sibling matches one or both of their parents.

Select the match by checking the box to the left of the match name, then click on the little two-person icon at far right, which shows “In Common” matches

You can see on the resulting shared match list that both of the tester’s parents are shown on the shared match list.

Now let’s make this a little more difficult.

No Parents, No Problem

Let’s say neither of your parents has tested.

If you know who your family is and can identify your matches, you can see if the sibling you match matches other close relatives on both or either side of your family.

You’ll want to view shared matches with your closest known match on both sides of your tree, beginning with the closest first. Aunts, uncles, first cousins, etc.

You will match all of your family members through second cousins, and 90% of your third cousins. You can view additional relationship percentages in the article, How Much of Them is in You?.

I recommend, for this matching purpose, to utilize 2^nd cousins and closer. That way you know for sure if you don’t share them as a match with your sibling, it’s because the sibling is not related on that side of the family, not because they simply don’t share any DNA due to their distance.

In this example, you have three sibling matches. Based on your and their matches to the same known first and second cousins, you can see that:

Sibling 1 is your full sibling, because you both match the same maternal and paternal first and second cousins
Sibling 2 is your paternal half-sibling because you both match paternal second cousins and closer, but not maternal cousins.
Sibling 3 is your maternal half-sibling because you both match maternal second cousins and closer, but not paternal cousins.

Close Relationships at Ancestry

Neither of my parents have tested, but my first cousin on my mother’s side has. Let’s say I have a suspected sibling or half-sibling match, so I click on the match’s name, then on Shared Matches.

Sure enough, my new match also matches my first cousin that I’ve labeled as “on my mother’s side.”

If my new match in the sibling range also matches my second cousins or closer on my father’s side, the new match is a full sibling, not a half-sibling.

Close Relationships at MyHeritage

Comparing my closest match provided a real surprise. I wonder if I’ve found a half-sibling to my mother.

Now, THIS is interesting.

Hmmm. More research is needed, beginning with the age of my match. MyHeritage provides ages if the MyHeritage member authorizes that information to be shared.

Close Relationships at 23andMe

Under DNA Relatives, click on your suspected sibling match, then scroll down and select “Find Relatives in Common.”

The Relatives in Common list shows people that match both of you.

The first common match is very close and a similar relationship to my closest match on my father’s side. This would be expected of a sibling. I have no common matches with this match to anyone on my mother’s side, so they are only related on my father’s side. Therefore they are a paternal half-sibling, not a full sibling.

More Tools Are Available

Hopefully, by now, you’ve been able to determine if your mystery match is a sibling, and if so, if they are a half or full sibling, and through which parent.

We have some additional tools that are relevant and can be very informative in some circumstances. I suggest utilizing these tools, even if you think you know the answer.

In this type of situation, there’s no such thing as too much information.

X Matching

X matching, or lack thereof, may help you determine how you are related to someone.

There are two types of autosomal DNA. The X chromosome versus chromosomes 1-22. The X chromosome (number 23) has a unique inheritance path that distinguishes it from your other chromosomes.

The X chromosome inheritance path also differs between men and women.

Here’s my pedigree chart in fan form, highlighting the ancestors who may have contributed a portion of their X chromosome to me. In the closest generation, this shows that I inherited an X chromosome from both of my parents, and who in each of their lines could have contributed an X to them.

The white or uncolored positions, meaning ancestors, cannot contribute any portion of an X chromosome to me based on how the X chromosome is inherited.

You’ll notice that my father inherited none of his X chromosome from any of his paternal ancestors, so of course, I can’t inherit what he didn’t inherit. There are a very limited number of ancestors on my father’s side whom I can inherit any portion of an X chromosome from.

Men receive their Y chromosome from their fathers, so men ONLY receive an X chromosome from their mother.

Therefore, men MUST pass their mother’s X chromosome on to their female offspring because they don’t have any other copy of the X chromosome to pass on.

Men pass no X chromosome to sons.

We don’t need to worry about a full fan chart when dealing with siblings and half-siblings.

We only need to be concerned with the testers plus one generation (parents) when utilizing the X chromosome in sibling situations.

These two female Disney Princesses, above, are full siblings, and both inherited an X chromosome from BOTH their mother and father. However, their father only has one X (red) chromosome to give them, so the two females MUST match on the entire red X chromosome from their father.

Their mother has two X chromosomes, green and black, to contribute – one from each of her parents.

The full siblings, Melody, and Cinderella:

May have inherited some portion of the same green and black X chromosomes from their mother, so they are partial matches on their mother’s X chromosome.
May have inherited the exact same full X chromosome from their mother (both inherited the entire green or both inherited the entire black), so they match fully on their mother’s X chromosome.
May have inherited the opposite X from different maternal grandparents. One inherited the entire green X and one inherited the entire black X, so they don’t match on their mother’s X chromosome.

Now, let’s look at Cinderella, who matches Henry.

This female and male full sibling match can’t share an X chromosome on the father’s side, because the male’s father doesn’t contribute an X chromosome to him. The son, Henry, inherited a Y chromosome instead from his father, which is what made them males.

Therefore, if a male and female match on the X chromosome, it MUST be through HIS mother, but could be through either of her parents. In a sibling situation, an X match between a male and female always indicates the mother.

In the example above, the two people share both of their mother’s X chromosomes, so are definitely (at least) maternally related. They could be full siblings, but we can’t determine that by the X chromosome in this situation, with males.

However, if the male matches the female on HER father’s X chromosome, there a different message, example below.

You can see that the male is related to the female on her father’s side, where she inherited the entire magenta X chromosome. The male inherited a portion of the magenta X chromosome from his mother, so these two people do have an X match. However, he matches on his mother’s side, and she matches on her father’s side, so that’s clearly not the same parent.

These people CAN NOT be full siblings because they don’t match on HER mother’s side too, which would also be his mother’s side if they were full siblings.
They cannot be maternal half-siblings because their X DNA only matches on her father’s side, but they wouldn’t know that unless she knew which side was which based on share matches.
They cannot be paternal half-siblings because he does not have an X chromosome from his father.

They could, however, be uncle/aunt-niece/nephew or first cousins on his mother’s side and her father’s side. (Yes, you’re definitely going to have to read this again if you ever need male-female X matching.)

Now, let’s look at X chromosome matching between two males. It’s a lot less complicated and much more succinct.

Neither male has inherited an X chromosome from their father, so if two males DO match on the X, it MUST be through their mother. In terms of siblings, this would mean they share the same mother.

However, there is one slight twist. In the above example, you can see that the men inherited a different proportion of the green and black X chromosomes from their common mother. However, it is possible that the mother could contribute her entire green X chromosome to one son, Justin in this example, and her entire black X chromosome to Henry.

Therefore, even though Henry and Justin DO share a mother, their X chromosome would NOT match in this scenario. This is rare but does occasionally happen.

Based on the above examples, the X chromosome may be relevant in the identification of full or half siblings based on the sexes of the two people who otherwise match at a level indicating a full or half-sibling relationship.

Here’s a summary chart for sibling X matching.

X Match	Female	Male
Female	Will match on shared father’s full X chromosome, mother’s X is the same rules as chromosomes 1-22	Match through male’s mother, but either of female’s parents. If the X match is not through the female’s mother, they are not full siblings nor maternal half-siblings. They cannot have an X match through the male’s father. They are either full or half-siblings through their mother if they match on both of their mother’s side. If they match on his mother’s side, and her father’s side, they are not siblings but could be otherwise closely related.
Male	Match through male’s mother, but either of female’s parents. If the X match is not through the female’s mother, they are not full siblings nor maternal half-siblings. They cannot have an X match through the male’s father. They are either full or half-siblings through their mother if they match on both or their mother’s side. If they match on his mother’s side, and her father’s side, they are not siblings but could be otherwise closely related.	Both males are related on their mother’s side – either full or half-siblings.

Here’s the information presented in a different way.

DOES match X summary:

If a male DOES match a female on the X, he IS related to her through HIS mother’s side, but could match her on her mother or father’s side. If their match is not through her mother, then they are not full siblings nor maternal half-siblings. They cannot match through his father, so they cannot be paternal half-siblings.
If a female DOES match a female on the X, they could be related on either side and could be full or half-siblings.
If a male DOES match a male on the X, they ARE both related through their mother. They may also be related on their father’s side, but the X does not inform us of that.

Does NOT match X summary:

If a male does NOT match a female on the X, they are NOT related through HIS mother and are neither full siblings nor maternal half-siblings. Since a male does not have an X chromosome from his father, they cannot be paternal half-siblings based on an X match.
If a male does NOT match a male, they do NOT share a mother.
If a female does NOT match another female on the X, they are NOT full siblings and are NOT half-siblings on their paternal side. Their father only has one X chromosome, and he would have given the same X to both daughters.

Of the four autosomal vendors, only 23andMe and FamilyTreeDNA report X chromosome results and matching, although the other two vendors, MyHeritage and Ancestry, include the X in their DNA download file so you can find X matches with those files at either FamilyTreeDNA or GEDMatch if your match has or will upload their file to either of those vendors. I wrote step-by-step detailed download/upload instructions, here.

X Matching at FamilyTreeDNA

In this example from FamilyTreeDNA, the female tester has discovered two half-sibling matches, both through her father. In the first scenario, she matches a female on the full X chromosome (181 cM). She and her half-sibling MUST share their father’s entire X chromosome because he only had one X, from his mother, to contribute to both of his daughters.

In the second match to a male half-sibling, our female tester shares NO X match because her father did not contribute an X chromosome to his son.

If we didn’t know which parents these half-sibling matches were through, we can infer from the X matching alone that the male is probably NOT through the mother.

Then by comparing shared matches with each sibling, Advanced Matches, or viewing the match Matrix, we can determine if the siblings match each other and are from the same or different sides of the family.

Under Additional Tests and Tools, Advanced Matching, FamilyTreeDNA provides an additional tool that can show only X matches combined with relationships.

Of course, you’ll need to view shared matches to see which people match the mother and/or match the father.

To see who matches each other, you’ll need to use the Matrix tool.

At FamilyTreeDNA, the Matrix, located under Autosomal DNA Results and Tools, allows you to select your matches to see if they also match each other. If you have known half-siblings, or close relatives, this is another way to view relationships.

Here’s an example using my father and two paternal half-siblings. We can see that the half-siblings also match each other, so they are (at least) half-siblings on the paternal side too.

If they also matched my mother, we would be full siblings, of course.

Next, let’s use Y DNA and mitochondrial DNA.

Y DNA and Mitochondrial DNA

In addition to autosomal DNA, we can utilize Y DNA and mitochondrial DNA (mtDNA) in some cases to identify siblings or to narrow or eliminate relationship possibilities.

Given that Y DNA and mitochondrial DNA both have distinctive inheritance paths, full and half-siblings will, or will not, match under various circumstances.

Y DNA

Y DNA is passed intact from father to son, meaning it’s not admixed with any of the mother’s DNA. Daughters do not inherit Y DNA from their father, so Y DNA is only useful for male-to-male comparisons.

Two types of Y DNA are used for genealogy, STR markers for matching, and haplogroups, and both are equally powerful in slightly different ways.

Y DNA at FamilyTreeDNA

Men can order either 37 or 111 STR marker tests, or the BIg Y which provides more than 700 markers and more. FamilyTreeDNA is the only one of the vendors to offer Y DNA testing that includes STR markers and matching between men.

Men who order these tests will be compared for matching on either 37, 111 or 700 STR markers in addition to SNP markers used for haplogroup identification and assignment.

Fathers will certainly match their sons, and paternal line brothers will match each other, but they will also match people more distantly related.

However, if two men are NOT either full or half siblings on the paternal side, they won’t match at 111 markers.

If two men DON’T match, especially at high marker levels, they likely aren’t siblings. The word “likely” is in there because, very occasionally, a large deletion occurs that prevents STR matching, especially at lower levels.

Additionally, men who take the 37 or 111 marker test also receive an estimated haplogroup at a high level for free, without any additional testing.

However, if men take the Big Y-700 test, they not only will (or won’t) match on up to 700 STR markers, they will also receive a VERY refined haplogroup via SNP marker testing that is often even more sensitive in terms of matching than STR markers. Between these two types of markers, Y DNA testing can place men very granularly in relation to other men.

Men can match in two ways on Y DNA, and the results are very enlightening.

If two men match on BOTH their most refined haplogroup (Big Y test) AND STR markers, they could certainly be siblings or father/son. They could also be related on the same line for another reason, such as known or unknown cousins or closer relationships like uncle/nephew. Of course, Y DNA, in addition to autosomal matching, is a powerful combination.

Conversely, if two men don’t have a similar or close haplogroup, they are not a father and son or paternal line siblings.

FamilyTreeDNA offers both inexpensive entry-level testing (37 and 111 markers) and highly refined advanced testing of most of the Y chromosome (Big Y-700), so haplogroup assignments can vary widely based on the test you take. This makes haplogroup matching and interpretation a bit more complex.

For example, haplogroups R-M269 and I-BY14000 are not related in thousands of years. One is haplogroup R, and one is haplogroup I – completely different branches of the Y DNA tree. These two men won’t match on STR markers or their haplogroup.

However, because FamilyTreeDNA provides over 50,000 different haplogroups, or tree branches, for Big Y testers, and they provide VERY granular matching, two father/son or sibling males who have BOTH tested at the Big Y-700 level will have either the exact same haplogroup, or at most, one branch difference on the tree if a mutation occurred between father and son.

If both men have NOT tested at the Big Y-700 level, their haplogroups will be on the same branch. For example, a man who has only taken a 37/111 marker STR test may be estimated at R-M269, which is certainly accurate as far as it goes.

His sibling who has taken a Big Y test will be many branches further downstream on the tree – but on the same large haplogroup R-M269 branch. It’s essential to pay attention to which tests a Y DNA match has taken when analyzing the match.

The beauty of the two kinds of tests is that even if one haplogroup is very general due to no Big Y test, their STR markers should still match. It’s just that sometimes this means that one hand is tied behind your back.

Y DNA matching alone can eliminate the possibility of a direct paternal line connection, but it cannot prove siblingship or paternity alone – not without additional information.

The Advanced Matching tool will provide a list of matches in all categories selected – in this case, both the 111 markers and the Family Finder test. You can see that one of these men is the father of the tester, and one is the full sibling.

You can view haplogroup assignments on the public Y DNA tree, here. I wrote about using the public tree, here.

In addition, recently, FamilyTreeDNA launched the new Y DNA Discover tool, which explains more about haplogroups, including their ages and other fun facts like migration paths along with notable and ancient connections. I wrote about using the Discover tool, here.

Y DNA at 23andMe

Testers receive a base haplogroup with their autosomal test. 23andMe tests a limited number of Y DNA SNP locations, but they don’t test many, and they don’t test STR markers, so there is no Y DNA matching and no refined haplogroups.

You can view the haplogroups of your matches. If your male sibling match does NOT share the same haplogroup, the two men are not paternal line siblings. If two men DO share the same haplogroup, they MIGHT be paternal siblings. They also might not.

Again, autosomal close matching plus haplogroup comparisons include or exclude paternal side siblings for males.

Paternal side siblings at 23andMe share the same haplogroup, but so do many other people. These two men could be siblings. The haplogroups don’t exclude that possibility. If the haplogroups were different, that would exclude being either full or paternal half-siblings.

Men can also compare their mitochondrial DNA to eliminate a maternal relationship.

These men are not full siblings or maternal half-siblings. We know, unquestionably, because their mitochondrial haplogroups don’t match.

23andMe also constructs a genetic tree, but often struggles with close relative placement, especially when half-relationships are involved. I do not recommend relying on the genetic tree in this circumstance.

Mitochondrial DNA

Mitochondrial DNA is passed from mothers to all of their children, but only females pass it on. If two people, males or females, don’t match on their mitochondrial DNA test, with a couple of possible exceptions, they are NOT full siblings, and they are NOT maternal half-siblings.

Mitochondrial DNA at 23andMe

23andMe provides limited, base mitochondrial haplogroups, but no matching. If two people don’t have the same haplogroup at 23andMe, they aren’t full or maternal siblings, as illustrated above.

Mitochondrial DNA at FamilyTreeDNA

FamilyTreeDNA provides both mitochondrial matching AND a much more refined haplogroup. The full sequence test (mtFull), the only version sold today, is essential for reliable comparisons.

Full siblings or maternal half-siblings will always share the same haplogroup, regardless of their sex.

Generally, a full sibling or maternal half-sibling match will match exactly at the full mitochondrial sequence (FMS) level with a genetic distance of zero, meaning fully matching and no mismatching mutations.

There are rare instances where maternal siblings or even mothers and children do not match exactly, meaning they have a genetic distance of greater than 0, because of a mutation called a heteroplasmy.

I wrote about heteroplasmies, here.

Like Y DNA, mitochondrial DNA cannot identify a sibling or parental relationship without additional evidence, but it can exclude one, and it can also provide much-needed evidence in conjunction with autosomal matching. The great news is that unlike Y DNA, everyone has mitochondrial DNA and it comes directly from their mother.

Once again, FamilyTreeDNA’s Advanced Matching tool provides a list of people who match you on both your mitochondrial DNA test and the Family Finder autosomal test, including transfers/uploads, and provides a relationship.

You can see that our tester matches both a full sibling and their mother. Of course, a parent/child match could mean that our tester is a female and one of her children, of either sex, has tested.

Below is an example of a parent-child match that has experienced a heteroplasmy.

Based on the comparison of both the mitochondrial DNA test, plus the autosomal Family Finder test, you can verify that this is a close family relationship.

You can also eliminate potential relationships based on the mitochondrial DNA inheritance path. The mitochondrial DNA of full siblings and maternal half-siblings will always match at the full sequence and haplogroup level, and paternal half-siblings will never match. If paternal half-siblings do match, it’s happenstance or because of a different reason.

Sibling Summary and Checklist

I’ve created a quick reference checklist for you to use when attempting to determine whether or not a match is a sibling, and, if so, whether they are half or full siblings. Of course, these tools are in addition to the DNAPainter Shared cM Tool and GEDmatch’s Relationship Predictor Calculator.

	FamilyTreeDNA	Ancestry	23andMe	MyHeritage	GEDmatch
Matching	Yes	Yes	Yes	Yes	Yes
Shared Matches	Yes – In Common With	Yes – Shared Matches	Yes – Relatives in Common	Yes – Review DNA Match	Yes – People who match both or 1 of 2 kits
Relationship Between Shared Matches	No	No	No	Yes, under shared match	No
Matches Match Each Other*	Yes, Matrix	No	Yes, under “View DNA details,” then, “compare with more relatives”	Partly, through triangulation	Yes, can match any kits
Full Siblings	Yes	Sibling, implies full	Yes	Brother, Sister, means full	No
Half Siblings	Sibling, Uncle/Aunt-Niece/Nephew, Grandparent-Grandchild	Close Family – 1C	Yes	Half sibling, aunt/uncle-niece-nephew	No
Fully Identical Regions (FIR)	No	No	Yes	No	Yes
Half Identical Regions (HIR)	No	No	Yes	No	Yes
X matching	Yes	No	Yes	No	Yes
Unusual Reporting or Anomalies	No	No, Timber is not used on close relationships	X match added into total, FIR added twice	No	Matching amount can vary from vendors
Y DNA	Yes, STRs, refined haplogroups, matching	No	High-level haplogroup only, no matching	No	No, only if tester enters haplogroup manually
Mitochondrial DNA	Yes, full sequence, matching, refined haplogroup	No	High-level haplogroup only, no matching	No	No, only if tester enters haplogroup manually
Combined Tools (Autosomal, X, Y, mtDNA)	Yes	No	No	No	No

*Autoclusters through Genetic Affairs show cluster relationships of matches to the tester and to each other, but not all matches are included, including close matches. While this is a great tool, it’s not relevant for determining close and sibling relationships. See the article, AutoClustering by Genetic Affairs, here.

Additional Resources

Some of you may be wondering how endogamy affects sibling numbers.

Endogamy makes almost everything a little more complex. I wrote about endogamy and various ways to determine if you have an endogamous heritage, here.

Please note that half-siblings with high cM matches also fall into the range of full siblings (1613-3488), with or without endogamy. This may be, but is not always, especially pronounced in endogamous groups.

As another resource, I wrote an earlier article, Full or Half Siblings, here, that includes some different examples.

Strategy

You have a lot of quills in your quiver now, and I wish you the best if you’re trying to unravel a siblingship mystery.

You may not know who your biological family is, or maybe your sibling doesn’t know who their family is, but perhaps your close relatives know who their family is and can help. Remember, the situation that has revealed itself may be a shock to everyone involved.

Above all, be kind and take things slow. If your unexpected sibling match becomes frightened or overwhelmed, they may simply check out and either delete their DNA results altogether or block you. They may have that reaction before you have a chance to do anything.

Because of that possibility, I recommend performing your analysis quickly, along with taking relevant screenshots before reaching out so you will at least have that much information to work with, just in case things go belly up.

When you’re ready to make contact, I suggest beginning by sending a friendly, short, message saying that you’ve noticed that you have a close match (don’t say sibling) and asking what they know about their family genealogy – maybe ask who their grandparents are or if they have family living in the area where you live. I recommend including a little bit of information about yourself, such as where you were born and are from.

I also refrain from using the word adoption (or similar) in the beginning or giving too much detailed information, because it sometimes frightens people, especially if they know or discover that there’s a painful or embarrassing family situation.

And, please, never, ever assume the worst of anyone or their motives. They may be sitting at their keyboard with the same shocked look on their face as you – especially if they have, or had, no idea. They may need space and time to reach a place of acceptance. There’s just nothing more emotionally boat-capsizing in your life than discovering intimate and personal details about your parents, one or both, especially if that discovery is disappointing and image-altering.

Or, conversely, your sibling may have been hoping and waiting just for you!

Take a deep breath and let me know how it goes!

Please feel free to share this article with anyone who could benefit.

_____________________________________________________________

Follow DNAexplain on Facebook, here or follow me on Twitter, here.

Share the Love!

You’re always welcome to forward articles or links to friends and share on social media.

If you haven’t already subscribed (it’s free,) you can receive an email whenever I publish by clicking the “follow” button on the main blog page, here.

You Can Help Keep This Blog Free

Thank you so much.

DNA Purchases and Free Uploads

FamilyTreeDNA – Y, mitochondrial and autosomal DNA testing
MyHeritage DNA – Autosomal DNA test
MyHeritage FREE DNA file upload – Upload your DNA file from other vendors free
AncestryDNA – Autosomal DNA test
23andMe Ancestry – Autosomal DNA only, no Health
23andMe Ancestry Plus Health

Genealogy Products and Services

MyHeritage FREE Tree Builder – Genealogy software for your computer
MyHeritage Subscription with Free Trial
Legacy Family Tree Webinars – Genealogy and DNA classes, subscription-based, some free
Legacy Family Tree Software – Genealogy software for your computer
Newspapers.com – Search newspapers for your ancestors
NewspaperArchive – Search different newspapers for your ancestors

My Book

DNA for Native American Genealogy – by Roberta Estes, for those ordering the e-book from anyplace, or paperback within the United States
DNA for Native American Genealogy – for those ordering the paperback outside the US

Genealogy Books

Genealogical.com – Lots of wonderful genealogy research books

Genealogy Research

Legacy Tree Genealogists – Professional genealogy research

DNA: In Search of…Signs of Endogamy

Posted on August 11, 2022 by Roberta Estes

This is the fourth in our series of articles about searching for unknown close family members, specifically; parents, grandparents, or siblings. However, these same techniques can be applied by genealogists to ancestors further back in time as well.

I introduced the “In Search of” series in the article, DNA: In Search of…New Series Launches.
In the second article, DNA: In Search of…What Do You Mean I’m Not Related to My Family? – and What Comes Next? we discussed the discovery that something was amiss when you don’t match a family member that you expect to match, then how to make sure a vial or upload mix-up didn’t happen. Next, I covered the basics of the four kinds of DNA tests you’ll be able to use to solve your mystery.
In the third article, In Search of…Vendor Features, Strengths, and Testing Strategies, we discussed testing goals and strategies, including testing with and uploading to multiple autosomal DNA vendors, Y DNA, and mitochondrial DNA testing. We reviewed the vendor’s strengths and the benefits of combining vendor information and resources.

In this article, we discuss endogamy – how to determine if you have it, from what population, and how to follow the road signs.

After introductions, we will be covering the following topics:

Pedigree collapse and endogamy
Endogamous groups
The challenge(s) of endogamy
Endogamy and unknown close relatives (parents, grandparents)
Ethnicity and Populations
Matches
AutoClusters
Endogamous Relationships
Endogamous DNA Segments
“Are Your Parents Related?” Tool
Surnames
Projects
Locations
Y DNA, Mitochondrial DNA, and Endogamy
Endogamy Tools Summary Tables
- Summary of Endogamy Tools by Vendor
- Summary of Endogamous Populations Identified by Each Tool
- Summary of Tools to Assist People Seeking Unknown Parents and Grandparents

What Is Endogamy and Why Does It Matter?

Endogamy occurs when a group or population of people intermarry among themselves for an extended period of time, without the introduction of many or any people from outside of that population.

The effect of this continual intermarriage is that the founders’ DNA simply gets passed around and around, eventually in small segments.

That happens because there is no “other” DNA to draw from within the population. Knowing or determining that you have endogamy helps make sense of DNA matching patterns, and those patterns can lead you to unknown relatives, both close and distant.

This Article

This article serves two purposes.

This article is educational and relevant for all researchers. We discuss endogamy using multiple tools and examples from known endogamous people and populations.
In order to be able to discern endogamy when we don’t know who our parents or grandparents are, we need to know what signs and signals to look for, and why, which is based on what endogamy looks like in people who know their heritage.

There’s no crystal ball – no definitive “one-way” arrow, but there are a series of indications that suggest endogamy.

Depending on the endogamous population you’re dealing with, those signs aren’t always the same.

If you’re sighing now, I understand – but that’s exactly WHY I wrote this article.

We’re covering a lot of ground, but these road markers are invaluable diagnostic tools.

I’ve previously written about endogamy in the articles:

What’s the Difference Between Pedigree Collapse and Endogamy?
Endogamy and DNA Segments
The Faces of Endogamy – The images in this 2017 article are somewhat out of date, but the concepts are as valid now as they were when I wrote the article.

Let’s start with definitions.

Pedigree Collapse and Endogamy

Pedigree collapse isn’t the same as endogamy. Pedigree collapse is when you have ancestors that repeat in your tree.

In this example, the parents of our DNA tester are first cousins, which means the tester shares great-grandparents on both sides and, of course, the same ancestors from there on back in their tree.

This also means they share more of those ancestors’ DNA than they would normally share.

John Smith and Mary Johnson are both in the tree twice, in the same position as great-grandparents. Normally, Tester Smith would carry approximately 12.5% of each of his great-grandparents’ DNA, assuming for illustration purposes that exactly 50% of each ancestor’s DNA is passed in each generation. In this case, due to pedigree collapse, 25% of Tester Smith’s DNA descends from John Smith, and another 25% descends from Mary Johnson, double what it would normally be. 25% is the amount of DNA contribution normally inherited from grandparents, not great-grandparents.

While we may find first cousin marriages a bit eyebrow-raising today, they were quite common in the past. Both laws and customs varied with the country, time, social norms, and religion.

Pedigree Collapse and Endogamy is NOT the Same

You might think that pedigree collapse and endogamy is one and the same, but there’s a difference. Pedigree collapse can lead to endogamy, but it takes more than one instance of pedigree collapse to morph into endogamy within a population. Population is the key word for endogamy.

The main difference is that pedigree collapse occurs with known ancestors in more recent generations for one person, while endogamy is longer-term and systemic in a group of people.

Picture a group of people, all descended from Tester Smith’s great-grandparents intermarrying. Now you have the beginnings of endogamy. A couple hundred or a few hundred years later, you have true endogamy.

In other words, endogamy is pedigree collapse on a larger scale – think of a village or a church.

My ancestors’ village of Schnait, in Germany, is shown above in 1685. One church and maybe 30 or 40 homes. According to church and other records, the same families had inhabited this village, and region, for generations. It’s a sure bet that both pedigree collapse and endogamy existed in this small community.

If pedigree collapse happens over and over again because there are no other people within the community to marry, then you have endogamy. In other words, with endogamy, you assuredly DO have historical pedigree collapse, generally back in time, often before you can identify those specific ancestors – because everyone descends from the same set of founders.

Endogamy Doesn’t Necessarily Indicate Recent Pedigree Collapse

With deep, historic endogamy, you don’t necessarily have recent pedigree collapse, and in fact, many people do not. Jewish people are a good example of this phenomenon. They shared ancestors for hundreds or thousands of years, depending on which group we are referring to, but in recent, known, generations, many Jewish people aren’t related. Still, their DNA often matches each other.

The good news is that there are telltale signs and signals of endogamy.

The bad news is that not all of these are obvious, meaning as an aid to people seeking clues about unknown close relatives, and other “signs” aren’t what they are believed to be.

Let’s step through each endogamy identifier, or “hint,” and then we will review how we can best utilize this information.

First, let’s take a look at groups that are considered to be endogamous.

Endogamous Groups

Jewish People – Specifically groups that were isolated from other groups of Jewish (and other) people; Ashkenazi (Germany, Northern France, and diaspora), Sephardic (Spanish, Iberia, and diaspora), Mizrahi (Israel, Middle Eastern, and diaspora,) Ethiopian Jews, and possibly Jews from other locations such as Mountain Jews from Kazakhstan and the Caucasus.

Acadians – Descendants of about 60 French families who settled in “Acadia” beginning about 1604, primarily on the island of Nova Scotia, and intermarried among themselves and with the Mi’kmaq people. Expelled by the English in 1755, they were scattered in groups to various diasporic regions where they continued to intermarry and where their descendants are found today. Some Acadians became the Cajuns of Louisiana.

Anabaptist Protestant Faiths – Amish, Mennonite, and Brethren (Dunkards) and their offshoots are Protestant religious sects founded in Europe in the 14^th, 15^th, and 16^th centuries on the principle of baptizing only adults or people who are old enough to choose to follow the faith, or rebaptizing people who had been previously baptized as children. These Anabaptist faiths tend to marry within their own group or church and often expel those who marry outside of the faith. Many emigrated to the American colonies and elsewhere, seeking religious freedom. Occasionally those groups would locate in close proximity and intermarry, but not marry outside of other Anabaptist denominations.

Native American (Indigenous) People – all indigenous peoples found in North and South America before European colonization descended from a small number of original founders who probably arrived at multiple times.

Indigenous Pacific Islanders – Including indigenous peoples of Australia, New Zealand, and Hawaii prior to colonization. They are probably equally as endogamous as Native American people, but I don’t have specific examples to share.

Villages – European or other villages with little inflow or whose residents were restricted from leaving over hundreds of years.

Other groups may have significant multiple lines of pedigree collapse and therefore become endogamous over time. Some people from Newfoundland, French Canadians, and Mormons (Church of Jesus Christ of Latter-Day Saints) come to mind.

Endogamy is a process that occurs over time.

Endogamy and Unknown Relatives

If you know who your relatives are, you may already know you’re from an endogamous population, but if you’re searching for close relatives, it’s helpful to be able to determine if you have endogamous heritage, at least in recent generations.

If you know nothing about either parent, some of these tools won’t help you, at least not initially, but others will. However, as you add to your knowledge base, the other tools will become more useful.

If you know the identity of one parent, this process becomes at least somewhat easier.

In future articles, we will search specifically for parents and each of your four grandparents. In this article, I’ll review each of the diagnostic tools and techniques you can use to determine if you have endogamy, and perhaps pinpoint the source.

The Challenge

People with endogamous heritage are related in multiple, unknown ways, over many generations. They may also be related in known ways in recent generations.

If both of your parents share the SAME endogamous culture or group of relatives:

You may have significantly more autosomal DNA matches than people without endogamy, unless that group of people is under-sampled. Jewish people have significantly more matches, but Native people have fewer due to under-sampling.
You may experience a higher-than-normal cM (centiMorgan) total for estimated relationships, especially more distant relationships, 3C and beyond.
You will have many matches related to you on both your maternal and paternal sides.
Parts of your autosomal DNA will be the same on both your mother’s and father’s sides, meaning your DNA will be fully identical in some locations. (I’ll explain more in a minute.)

If either (or both) of your parents are from an endogamous population, you:

Will, in some cases, carry identifying Y and mitochondrial DNA that points to a specific endogamous group. This is true for Native people, can be true for Jewish people and Pacific Islanders, but is not true for Anabaptist people.

One Size Does NOT Fit All

Please note that there is no “one size fits all.”

Each or any of these tools may provide relevant hints, depending on:

Your heritage
How many other people have tested from the relevant population group
How many close or distant relatives have tested
If your parents share the same heritage
Your unique DNA inheritance pattern
If your parents, individually, were fully endogamous or only partly endogamous, and how far back generationally that endogamy occurred

For example, in my own genealogy, my maternal grandmother’s father was Acadian on his father’s side. While I’m not fully endogamous, I have significantly more matches through that line proportionally than on my other lines.

I have Brethren endogamy on my mother’s side via her paternal grandmother.

Endogamous ancestors are shown with red stars on my mother’s pedigree chart, above. However, please note that her maternal and paternal endogamous ancestors are not from the same endogamous population.

However, I STILL have fewer matches on my mother’s side in total than on my father’s side because my mother has recent Dutch and recent German immigrants which reduces her total number of matches. Neither of those lines have had as much time to produce descendants in the US, and Europe is under-sampled when compared with the US where more people tend to take DNA tests because they are searching for where they came from.

My father’s ancestors have been in the US since it was a British Colony, and I have many more cousins who have tested on his side than mother’s.

If you looked at my pedigree chart and thought to yourself, “that’s messy,” you’d be right.

The “endogamy means more matches” axiom does not hold true for me, comparatively, between my parents – in part because my mother’s German and Dutch lines are such recent immigrants.

The number of matches alone isn’t going to tell this story.

We are going to need to look at several pieces and parts for more information. Let’s start with ethnicity.

Ethnicity and Populations

Ethnicity can be a double-edged sword. It can tell you exactly nothing you couldn’t discern by looking in the mirror, or, conversely, it can be a wealth of information.

Ethnicity reveals the parts of the world where your ancestors originated. When searching for recent ancestors, you’re most interested in majority ethnicity, meaning the 50% of your DNA that you received from each of your parents.

Ethnicity results at each vendor are easy to find and relatively easy to understand.

This individual at FamilyTreeDNA is 100% Ashkenazi Jewish.

If they were 50% Jewish, we could then estimate, and that’s an important word, that either one of their parents was fully Jewish, and not the other, or that two of their grandparents were Jewish, although not necessarily on the same side.

On the other hand, my mother’s ethnicity, shown below, has nothing remarkable that would point to any majority endogamous population, yet she has two.

The only hint of endogamy from ethnicity would be her ~1% Americas, and that isn’t relevant for finding close relatives. However, minority ancestry is very relevant for identifying Native ancestors, which I wrote about, here.

You can correlate or track your ethnicity segments to specific ancestors, which I discussed in the article, Native American & Minority Ancestors Identified Using DNAPainter Plus Ethnicity Segments, here.

Since I wrote that article, FamilyTreeDNA has added the feature of ethnicity or population Chromosome Painting, based on where each of your populations fall on your chromosomes.

In this example on chromosome 1, I have European ancestry (blue,) except for the pink Native segment, which occurs on the following segment in the same location on my mother’s chromosome 1 as well.

Both 23andMe, and FamilyTreeDNA provide chromosome painting AND the associated segment information so you can identify the relevant ancestors.

Ancestry is in the process of rolling out an ethnicity painting feature, BUT, it has no segment or associated matching information. While it’s interesting eye candy, it’s not terribly useful beyond the ethnicity information that Ancestry already provides. However, Jonny Perl at DNAPainter has devised a way to estimate Ancestry’s start and stop locations, here. Way to go Jonny!

Now all you need to do is convince your Ancestry matches to upload their DNA file to one of the three databases, FamilyTreeDNA, MyHeritage, and GEDMatch, that accept transfers, aka uploads. This allows matching with segment data so that you can identify who matches you on that segment, track your ancestors, and paint your ancestral segments at DNAPainter.

I provided step-by-step instructions, here, for downloading your raw DNA file from each vendor in order to upload the file to another vendor.

Ethnicity Sides

Three of the four DNA testing vendors, 23andMe, FamilyTreeDNA, and recently, Ancestry, attempt to phase your ethnicity DNA, meaning to assign it to one parental “side” or the other – both in total and on each chromosome.

Here’s Ancestry’s SideView, where your DNA is estimated to belong to parent 1 and parent 2. I detailed how to determine which side is which, here, and while that article was written specifically pertaining to Ancestry’s SideView, the technique is relevant for all the vendors who attempt to divide your DNA into parents, a technique known as phasing.

I say “attempt” because phasing may or may not be accurate, meaning the top chromosome may not always be parent 1, and the bottom chromosome may not always be chromosome 2.

Here’s an example at 23andMe.

See the two yellow segments. They are both assigned as Native. I happen to know one is from the mother and one is from the father, yet they are both displayed on the “top” chromosome, which one would interpret to be the same parent.

I am absolutely positive this is not the case because this is a close family member, and I have the DNA of the parent who contributed the Native segment on chromosome 1, on the top chromosome. That parent does not have a Native segment on chromosome 2 to contribute. So that Native segment had to be contributed by the other parent, but it’s also shown on the top chromosome.

The DNA segments circled in purple belong together on the same “side” and were contributed to the tester by the same parent. The Native segment on chromosome 2 abuts a purple African segment, suggesting perhaps that the ancestor who contributed that segment was mixed between those ethnicities. In the US, that suggests enslavement.

The other African segments, circled, are shown on the second chromosome in each pair.

To be clear, parent 1 is not assigned by the vendors to either mother or father and will differ by person. Your parent 1, or the parent on the top chromosome may be your mother and another person’s parent 1 may be their father.

As shown in this example, parents can vary by chromosome, a phenomenon known as “strand swap.” Occasionally, the DNA can even be swapped within a chromosome assignment.

You can, however, get an idea of the division of your DNA at any specific location. As shown above, you can only have a maximum of two populations of DNA on any one chromosome location.

In our example above, this person’s majority ancestry is European (blue.) On each chromosome where we find a minority segment, the opposite chromosome in the same location is European, meaning blue.

Let’s look at another example.

At FamilyTreeDNA, the person whose ethnicity painting is shown below has a Native American (pink) ancestor on their father’s side. FamilyTreeDNA has correctly phased or identified their Native segments as all belonging to the second chromosome in each pair.

Looking at chromosome 18, for example, most of their father’s chromosome is Native American (pink). The other parent’s chromosome is European (dark blue) at those same locations.

If one of the parents was of one ethnicity, and the other parent is a completely different ethnicity, then one bar of each chromosome would be all pink, for example, and one would be entirely blue, representing the other ethnicity.

Phasing ethnicity or populations to maternal and paternal sides is not foolproof, and each chromosome is phased individually.

Ethnicity can, in some cases, give you a really good idea of what you’re dealing with in terms of heritage and endogamy.

If someone had an Ashkenazi Jewish father and European mother, for example, one copy of each chromosome would be yellow (Ashkenazi Jewish), and one would be blue (European.)

However, if each of their parents were half European Jewish and half European (not Jewish), then their different colored segments would be scattered across their entire set of chromosomes.

In this case, both of the tester’s parents are mixed – European Jewish (green) and Western Europe (blue.) We know both parents are admixed from the same two populations because in some locations, both parents contributed blue (Western Europe), and in other locations, both contributed Jewish (green) segments.

Both MyHeritage and Ancestry provide a secondary tool that’s connected to ethnicity, but different and generally in more recent times.

Ancestry’s DNA Communities

While your ethnicity may not point to anything terribly exciting in terms of endogamy, Genetic Communities might. Ancestry says that a DNA Community is a group of people who share DNA because their relatives recently lived in the same place at the same time, and that communities are much smaller than ethnicity regions and reach back only about 50-300 years.

Based on the ancestors’ locations in the trees of me and my matches, Ancestry has determined that I’m connected to two communities. In my case, the blue group is clearly my father’s line. The orange group could be either parent, or even a combination of both.

My endogamous Brethren could be showing up in Maryland, Pennsylvania, and Ohio, but it’s uncertain, in part, because my father’s ancestral lines are found in Virginia, West Virginia, and Maryland too.

These aren’t useful for me, but they may be more useful for fully endogamous people, especially in conjunction with ethnicity.

My Acadian cousin’s European ethnicity isn’t informative.

However, viewing his DNA Communities puts his French heritage into perspective, especially combined with his match surnames.

I wrote about DNA Communities when it was introduced with the name Genetic Communities, here.

MyHeritage’s Genetic Groups

MyHeritage also provides a similar feature that shows where my matches’ ancestors lived in the same locations as mine.

One difference, though, is that testers can adjust their ethnicity results confidence level from high, above, to low, below where one of my Genetic Groups overlaps my ethnicity in the Netherlands.

You can also sort your matches by Genetic Groups.

The results show you not only who is in the group, but how many of your matches are in that group too, which provides perspective.

I wrote about Genetic Groups, here.

Next, let’s look at how endogamy affects your matches.

Matches

The number of matches that a person has who is from an entirely endogamous community and a person with no endogamy may be quite different.

FamilyTreeDNA provides a Family Matching feature that triangulates your matches and assigns them to your paternal or maternal side by using known matches that you have linked to their profile cards in your tree. You must link people for the Family Matching feature known as “bucketing” to be enabled.

The people you link are then processed for shared matches on the same chromosome segment(s). Triangulated individuals are then deposited in your maternal, paternal, and both buckets.

Obviously, your two parents are the best people to link, but if they haven’t tested (or uploaded their DNA file from another vendor) and you have other known relatives, link them using the Family Tree tab at the top of your personal page.

I uploaded my Ancestry V4 kit to use as an example for linking. Let’s pretend that’s my sister. If I had not already linked my Ancestry V4 kit to “my sister’s” profile card, I’d want to do that and link other known individuals the same way. Just drag and drop the match to the correct profile card.

Note that a full or half sibling will be listed as such at FamilyTreeDNA, but an identical twin will show as a potential parent/child match to you. You’re much more likely to find a parent than an identical twin, but just be aware.

I’ve created a table of FamilyTreeDNA bucketed match results, by category, comparing the number of matches in endogamous categories with non-endogamous.

	Total Matches	Maternal Matches	Paternal Matches	Both	% Both	% DNA Unassigned
100% Jewish	34,637	11,329	10,416	4,806	13.9	23.3
100% Jewish	32,973	10,700	9,858	4,606	14	23.7
100% Jewish	32,255	9,060	10,970	3,892	12	25.8
75% Jewish	24,232	11,846	Only mother linked	Only mother linked	Only mother linked
100% Acadian	8093	3826	2299	1062	13	11
100% Acadian	7828	3763	1825	923	11.8	17
Not Endogamous	6760	3845	1909	13	0.19	14.5
Not Endogamous	7723	1470	3317	6	0.08	38
100% Native American	1,115	Unlinked	Unlinked	Unlinked
100% Native American	885	290	Unknown	Can’t calculate without at least one link on both sides

The 100% Jewish, Acadian, and Not Endogamous testers both have linked their parents, so their matches, if valid (meaning not identical by chance, which I discussed here,) will match them plus one or the other parent.

One person is 75% Jewish and has only linked their Jewish mother.

The Native people have not tested their parents, and the first Native person has not linked anyone in their tree. The second Native person has only linked a few maternal matches, but their mother has not tested. They are seeking their father.

It’s very difficult to find people who are fully Native as testers. Furthermore, Native people are under-sampled. If anyone knows of fully Native (or other endogamous) people who have tested and linked their parents or known relatives in their trees, and will allow me to use their total match numbers anonymously, please let me know.

As you can see, Jewish, Acadian, and Native people are 100% endogamous, but many more Jewish people than Native people have tested, so you CAN’T judge endogamy by the total number of matches alone.

In fact, in order:

Fully Jewish testers have about 4-5 times as many matches as the Acadian and Non-endogamous testers
Acadian and Non-endogamous testers have about 5-6 times as many matches as the Native American testers
Fully Jewish people have about 30 times more matches than the Native American testers

If a person’s endogamy with a particular population is only on their maternal or paternal side, they won’t have a significant number of people related to both sides, meaning few people will fall into the “Both” bucket. People that will always be found in the ”Both” bucket are full siblings and their descendants, along with descendants of the tester, assuming their match is linked to their profiles in the tester’s tree.

In the case of our Jewish testers, you can easily see that the “Both” bucket is very high. The Acadians are also higher than one would reasonably expect without endogamy. A non-endogamous person might have a few matches on both sides, assuming the parents are not related to each other.

A high number of “Both” matches is a very good indicator of endogamy within the same population on both parents’ sides.

The percentage of people who are assigned to the “Both” bucket is between 11% and 14% in the endogamous groups, and less than 1% in the non-endogamous group, so statistically not relevant.

As demonstrated by the Native people compared to the Jewish testers, the total number of matches can be deceiving.

However, being related to both parents, as indicated by the “Both” bucket, unless you have pedigree collapse, is a good indicator of endogamy.

Of course, if you don’t know who your relatives are, you can’t link them in your tree, so this type of “hunt” won’t generally help people seeking their close family members.

However, you may notice that you’re matching people PLUS both of their parents. If that’s the case, start asking questions of those matches about their heritage.

A very high number of total matches, as compared to non-endogamous people, combined with some other hints might well point to Jewish heritage.

I included the % DNA Unassigned category because this category, when both parents are linked, is the percentage of matches by chance, meaning the match doesn’t match either of the tester’s parents. All of the people with people listed in “Both” categories have linked both of their parents, not just maternal and paternal relatives.

Matching Location at MyHeritage

MyHeritage provides a matching function by location. Please note that it’s the location of the tester, but that may still be quite useful.

The locations are shown in the most-matches to least-matches order. Clicking on the location shows the people who match you who are from that location. This would be the most useful in situations where recent immigration has occurred. In my case, my great-grandfather from the Netherlands arrived in the 1860s, and my German ancestors arrived in the 1850s. Neither of those groups are endogamous, though, unless it would be on a village level.

AutoClusters

Let’s shift to Genetic Affairs, a third-party tool available to everyone.

Using their AutoCluster function, Genetic Affairs clusters your matches together who match both each other and you.

This is an example of the first few clusters in my AutoCluster. You can see that I have several colored clusters of various sizes, but none are huge.

Compare that to the following endogamous cluster, sample courtesy of EJ Blom at Genetic Affairs.

If your AutoCluster at Genetic Affairs looks something like this, a huge orange blob in the upper left hand corner, you’re dealing with endogamy.

Please also note that the size of your cluster is also a function of both the number of testers and the match threshold you select. I always begin by using the defaults. I wrote about using Genetic Affairs, here.

If you tested at or transferred to MyHeritage, they too license AutoClusters, but have optimized the algorithm to tease out endogamous matches so that their Jewish customers, in particular, don’t wind up with a huge orange block of interrelated people.

You won’t see the “endogamy signature” huge cluster in the corner, so you’re less likely to be able to discern endogamy from a MyHeritage cluster alone.

The commonality between these Jewish clusters at MyHeritage is that they all tend to be rather uniform in size and small, with lots of grey connecting almost all the blocks.

Grey cells indicate people who match people in two colored groups. In other words, there is often no clear division in clusters between the mother’s side and the father’s side in Jewish clusters.

In non-endogamous situations, even if you can’t identify the parents, the clusters should still fall into two sides, meaning a group of clusters for each parent’s side that are not related to each other.

You can read more about Genetic Affairs clusters and their tools, here. DNAGedcom.com also provides a clustering tool.

Endogamous Relationships

Endogamous estimated relationships are sometimes high. Please note the word, “sometimes.”

Using the Shared cM Project tool relationship chart, here, at DNAPainter, people with heavy endogamy will discover that estimated relationships MAY be on the high side, or the relationships may, perhaps, be estimated too “close” in time. That’s especially true for more distant relationships, but surprisingly, it’s not always true. The randomness of inheritance still comes into play, and so do potential unknown relatives. Hence, the words “may” are bolded and underscored.

Unfortunately, it’s often stated as “conventional wisdom” that Jewish matches are “always” high, and first cousins appear as siblings. Let’s see what the actual data says.

At DNAPainter, you can either enter the amount of shared DNA (cM), or the percent of shared DNA, or just use the chart provided.

I’ve assembled a compilation of close relationships in kits that I have access to or from people who were generous enough to share their results for this article.

I’ve used Jewish results, which is a highly endogamous population, compared with non-endogamous testers.

The “Jewish Actual” column reports the total amount of shared DNA with that person. In other words, someone to their grandparent. The Average Range is the average plus the range from DNAPainter. The Percent Difference is the % difference between the actual number and the DNAPainter average.

You’ll see fully Jewish testers, at left, matching with their family members, and a Non-endogamous person, at right, matching with their same relative.

Relationship	Jewish Actual	Percent Difference than Average	Average -Range	Non-endogamous Actual	Percent Difference than Average
Grandparent	2141	22	1754 (984-2482)	1742	<1 lower
Grandparent	1902	8.5	1754 (984-2482)	1973	12
Sibling	3039	16	2613 (1613-3488)	2515	3.5 lower
Sibling	2724	4	2613 (1613-3488)	2761	5.5
Half-Sibling	2184	24	1759 (1160-2436)	2127	21
Half-Sibling	2128	21	1759 (1160-2436)	2352	34
Aunt/Uncle	2066	18.5	1741 (1201-2282)	1849	6
Aunt/Uncle	2031	16.5	1741 (1201-2282)	2097	20
1C	1119	29	866 (396-1397)	959	11
1C	909	5	866 (396-1397)	789	9 lower
1C1R	514	19	433 (102-980)	467	8
1C1R	459	6	433 (102-980)	395	9 lower

These totals are from FamilyTreeDNA except one from GEDMatch (one Jewish Half-sibling).

Totals may vary by vendor, even when matching with the same person. 23andMe includes the X segments in the total cMs and also counts fully identical segments twice. MyHeritage imputation seems to err on the generous side.

However, in these dozen examples:

You can see that the Jewish actual amount of DNA shared is always more than the average in the estimate.
The red means the overage is more than 100 cM larger.
The percentage difference is probably more meaningful because 100 cM is a smaller percentage of a 1754 grandparent connection than compared to a 433 cM 1C1R.

However, you can’t tell anything about endogamy by just looking at any one sample, because:

Some of the Non-Endogamous matches are high too. That’s just the way of random inheritance.
All of the actual Jewish match numbers are within the published ranges, but on the high side.

Furthermore, it can get more complex.

Half Endogamous

I requested assistance from Jewish genealogy researchers, and a lovely lady, Sharon, reached out, compiled her segment information, and shared it with me, granting permission to share with you. A HUGE thank you to Sharon!

Sharon is half-Jewish via one parent, and her half-sibling is fully Jewish. Their half-sibling match to each other at Ancestry is 1756 cM with a longest segment of 164 cM.

How does Jewish matching vary if you’re half-Jewish versus fully Jewish? Let’s look at 21 people who match both Sharon and her fully Jewish half-sibling.

Sharon shared the differences in 21 known Jewish matches with her and her half-sibling. I’ve added the Relationship Estimate Range from DNAPainter and colorized the highest of the two matches in yellow. Bolding in the total cM column shows a value above the average range for that relationship.

Total Matching cMs is on the left, with Longest Segment on the right.

While this is clearly not a scientific study, it is a representative sample.

The fully Jewish sibling carries more Jewish DNA, which is available for other Jewish matches to match as a function of endogamy (identical by chance/population), so I would have expected the fully Jewish sibling to match most if not all Jewish testers at a higher level than the half-Jewish sibling.

However, that’s not universally what we see.

The fully Jewish sibling is not always the sibling with the highest number of matches to the other Jewish testers, although the half-Jewish tester has the larger “Longest Segment” more often than not.

Approximately two-thirds of the time (13/21), the fully Jewish person does have a higher total matching cM, but about one-third of the time (8/21), the half-Jewish sibling has a higher matching cM.

About one-fourth of the time (5/21), the fully Jewish sibling has the longest matching segment, and about two-thirds of the time (13/21), the half-Jewish sibling does. In three cases, or about 14% of the time, the longest segment is equal which may indicate that it’s the same segment.

Because of endogamy, Jewish matches are more likely to have:

Larger than average total cM for the specific relationship
More and smaller matching segments

However, as we have seen, neither of those are definitive, nor always true. Jewish matches and relationships are not always overestimated.

Ancestry and Timber

Please note that Ancestry downweights some matches by removing some segments using their Timber algorithm. Based on my matches and other accounts that I manage, Ancestry does not downweight in the 2-3^rd cousin category, which is 90 cM and above, but they do begin downweighting in the 3-4^th cousin category, below 90 cM, where my “Extended Family” category begins.

If you’ve tested at Ancestry, you can check for yourself.

By clicking on the amount of DNA you share with your match on your match list at Ancestry, shown above, you will be taken to another page where you will be able to view the unweighted shared DNA with that match, meaning the amount of DNA shared before the downweighting and removal of some segments, shown below.

Given the downweighting, and the information in the spreadsheet provided by Sharon, it doesn’t appear that any of those matches would have been in a category to be downweighted.

Therefore, for these and other close matches, Timber wouldn’t be a factor, but would potentially be in more distant matches.

Endogamous Segments

Endogamous matches tend to have smaller and more segments. Small amounts of matching DNA tend to skew the total DNA cM upwards.

How and why does this happen?

Ancestral DNA from further back in time tends to be broken into smaller segments.

Sometimes, especially in endogamous situations, two smaller segments, at one time separated from each other, manage to join back together again and form a match, but the match is only due to ancestral segments – not because of a recent ancestor.

Please note that different vendors have different minimum matching cM thresholds, so smaller matches may not be available at all vendors. Remember that factors like Timber and imputation can affect matching as well.

Let’s take a look at an example. I’ve created a chart where two ancestors have their blue and pink DNA broken into 4 cM segments.

They have children, a blue child and a pink child, and the two children, shown above, each inherited the same blue 4 cM segment and the same pink 4 cM segment from their respective parents. The other unlabeled pink and blue segments are not inherited by these two children, so those unlabeled segments are irrelevant in this example.

The parents may have had other children who inherited those same 4 cM labeled pink and blue segments as well, and if not, the parents’ siblings were probably passing at least some of the same DNA down to their descendants too.

The blue and pink children had children, and their children had children – for several generations.

Time passed, and their descendants became an endogamous community. Those pink and blue 4 cM segments may at some time be lost during recombination in the descendants of each of their children, shown by “Lost pink” and “Lost blue.”

However, because there is only a very limited amount of DNA within the endogamous community, their descendants may regain those same segments again from their “other parent” during recombination, downstream.

In each generation, the DNA of the descendant carrying the original blue or pink DNA segment is recombined with their partner. Given that the partners are both members of the same endogamous community, the two people may have the same pink and/or blue DNA segments. If one parent doesn’t carry the pink 4 cM segment, for example, their offspring may receive that ancestral pink segment from the other parent.

They could potentially, and sometimes do, receive that ancestral segment from both parents.

In our example, the descendants of the blue child, at left, lost the pink 4 cM segment in generation 3, but a few generations later, in generation 11, that descendant child inherited that same pink 4 cM segment from their other parent. Therefore, both the 4 cM blue and 4 cM pink segments are now available to be inherited by the descendants in that line. I’ve shown the opposite scenario in the generational inheritance at right where the blue segment is lost and regained.

Once rejoined, that pink and blue segment can be passed along together for generations.

The important part, though, is that once those two segments butt up against each other again during recombination, they aren’t just two separate 4 cM segments, but one segment that is 8 cM long – that is now equal to or above the vendors’ matching threshold.

This is why people descended from endogamous populations often have the following matching characteristics:

More matches
Many smaller segment matches
Their total cM is often broken into more, smaller segments

What does more, smaller segments, look like, exactly?

More, Smaller Segments

All of our vendors except Ancestry have a chromosome browser for their customers to compare their DNA to that of their matches visually.

Let’s take a look at some examples of what endogamous and non-endogamous matches look like.

For example, here’s a screen shot of a random Jewish second cousin match – 298 cM total, divided into 12 segments, with a longest segment of 58 cM,

A second Jewish 2C with 323 cM total, across 19 segments, with a 69 cM longest block.

A fully Acadian 2C match with 600 cM total, across 27 segments, with a longest segment of 69 cM.

A second Acadian 2C with 332 cM total, across 20 segments, with a longest segment of 42 cM.

Next, a non-endogamous 2C match with 217 cM, across 7 segments, with a longest segment of 72 cM.

Here’s another non-endogamous 2C example, with 169 shared cM, across 6 segments, with a longest segment of 70 cM.

Here’s the second cousin data in a summary table. The take-away from this is the proportion of total segments

Tester Population	Total cM	Longest Block	Total Segments
Jewish 2C	298	58	12
Jewish 2C	323	69	19
Acadian 2C	600	69	27
Acadian 2C	332	42	20
Non-endogamous 2C	217	72	7
Non-endogamous 2C	169	70	6

You can see more examples and comparisons between Native American, Jewish and non-endogamous DNA individuals in the article, Concepts – Endogamy and DNA Segments.

I suspect that a savvy mathematician could predict endogamy based on longest block and total segment information.

Lara Diamond, a mathematician, who writes at Lara’s Jewnealogy might be up for this challenge. She just published compiled matching and segment information in her Ashkenazic Shared DNA Survey Results for those who are interested. You can also contribute to Laura’s data, here.

Endogamy, Segments, and Distant Relationships

While not relevant to searching for close relatives, heavily endogamous matches 3C and more distant, to quote one of my Jewish friends, “dissolve into a quagmire of endogamy and are exceedingly difficult to unravel.”

In my own Acadian endogamous line, I often simply have to label them “Acadian” because the DNA tracks back to so many ancestors in different lines. In other words, I can’t tell which ancestor the match is actually pointing to because the same DNA segments or segments is/are carried by several ancestors and their descendants due to founder effect.

The difference with the Acadians is that we can actually identify many or most of them, at least at some point in time. As my cousin, Paul LeBlanc, once said, if you’re related to one Acadian, you’re related to all Acadians. Then he proceeded to tell me that he and I are related 137 different ways. My head hurts!

It’s no wonder that endogamy is incredibly difficult beyond the first few generations when it turns into something like multi-colored jello soup.

“Are Your Parents Related?” Tool

There’s another tool that you can utilize to determine if your parents are related to each other.

To determine if your parents are related to each other, you need to know about ROH, or Runs of Homozygosity (ROH).

ROH means that the DNA on both strands or copies of the same chromosome is identical.

For a few locations in a row, ROH can easily happen just by chance, but the longer the segment, the less likely that commonality occurs simply by chance.

The good news is that you don’t need to know the identity of either of your parents. You don’t need either of your parent’s DNA tests – just your own. You’ll need to upload your DNA file to GEDmatch, which is free.

Click on “Are your parents related?”

GEDMatch analyzes your DNA to see if any of your DNA, above a reasonable matching threshold, is identical on both strands, indicating that you inherited the exact same DNA from both of your parents.

A legitimate match, meaning one that’s not by chance, will include many contiguous matching locations, generally a minimum of 500 SNPs or locations in a row. GEDmatch’s minimum threshold for identifying identical ancestral DNA (ROH) is 200 cM.

Here’s my result, including the graphic for the first two chromosomes. Notice the tiny green bars that show identical by chance tiny sliver segments.

I have no significant identical DNA, meaning my parents are not related to each other.

Next, let’s look at an endogamous example where there are small, completely identical segments across a person’s chromosome

This person’s Acadian parents are related to each other, but distantly.

Next, let’s look at a Jewish person’s results.

You’ll notice larger green matching ROH, but not over 200 contiguous SNPs and 7 cM.

GEDMatch reports that this Jewish person’s parents are probably not related within recent generations, but it’s clear that they do share DNA in common.

People whose parents are distantly related have relatively small, scattered matching segments. However, if you’re seeing larger ROH segments that would be large enough to match in a genealogical setting, meaning multiple greater than 7 cM and 500 SNPs,, you may be dealing with a different type of situation where cousins have married in recent generations. The larger the matching segments, generally, the closer in time.

Blogger Kitty Cooper wrote an article, here, about discovering that your parents are related at the first cousin level, and what their GEDMatch “Are Your Parents Related” results look like.

Let’s look for more clues.

Surnames

There MAY be an endogamy clue in the surnames of the people you match.

Viewing surnames is easier if you download your match list, which you can do at every vendor except Ancestry. I’m not referring to the segment data, but the information about your matches themselves.

I provided instructions in the recent article, How to Download Your DNA Match Lists and Segment Files, here.

If you suspect endogamy for any reason, look at your closest matches and see if there is a discernable trend in the surnames, or locations, or any commonality between your matches to each other.

For example, Jewish, Acadian, and Native surnames may be recognizable, as may locations.

You can evaluate in either or both of two ways:

The surnames of your closest matches. Closest matches listed first will be your default match order.
Your most frequently occurring surnames, minus extremely common names like Smith, Jones, etc., unless they are also in your closest matches. To utilize this type of matching, sort the spreadsheet in surname order and then scan or count the number of people with each surname.

Here are some examples from our testers.

Jewish – Closest surname matches.

Roth
Weiss
Goldman
Schonwald
Levi
Cohen
Slavin
Goodman
Sender
Trebatch

Acadian – Closest surname matches.

Bergeron
Hebert
Bergeron
Marcum
Muise
Legere
Gaudet
Perry
Verlander
Trombley

Native American – Closest surname matches.

Ortega
Begay
Valentine
Hayes
Montoya
Sun Bear
Martin
Tsosie
Chiquito
Yazzie

You may recognize these categories of surnames immediately.

If not, Google is your friend. Eliminate common surnames, then Google for a few together at a time and see what emerges.

The most unusual surnames are likely your best bets.

Projects

Another way to get some idea of what groups people with these surnames might belong to is to enter the surname in the FamilyTreeDNA surname search.

Go to the main FamilyTreeDNA page, but DO NOT sign on.

Scroll down until you see this image.

Type the surname into the search box. You’ll see how many people have tested with that surname, along with projects where project administrators have included that surname indicating that the project may be of interest to at least some people with that surname.

Here’s a portion of the project list for Cohen, a traditional Jewish surname.

These results are for Muise, an Acadian surname.

Clicking through to relevant surname projects, and potentially contacting the volunteer project administrator can go a very long way in helping you gather and sift information. Clearly, they have an interest in this topic.

For example, here’s the Muise surname in the Acadian AmerIndian project. Two great hints here – Acadian heritage and Halifax, Nova Scotia.

Repeat for the balance of surnames on your list to look for commonalities, including locations on the public project pages.

Locations

Some of the vendor match files include location information. Each person on your match list will have the opportunity at the vendor where they tested to include location information in a variety of ways, either for their ancestors or themselves.

Where possible, it’s easiest to sort or scan the download file for this type of information.

Ancestry does not provide or facilitate a match list, but you can still create your own for your closest 20 or 30 matches in a spreadsheet.

MyHeritage provides common surname and ancestral location information for every match. How cool is that!

Y DNA, Mitochondrial DNA, and Endogamy

Haplogroups for both Y and mitochondrial DNA can indicate and sometimes confirm endogamy. In other cases, the haplogroup won’t help, but the matches and their location information just might.

FamilyTreeDNA is the only vendor that provides Y DNA and mitochondrial DNA tests that include highly granular haplogroups along with matches and additional tools.

23andMe provides high-level haplogroups which may or may not be adequate to pinpoint a haplogroup that indicates endogamy.

Of course, only males carry Y DNA that tracks to the direct paternal (surname) line, but everyone carries their mother’s mitochondrial DNA that represents their mother’s mother’s mother’s, or direct matrilineal line.

Some haplogroups are known to be closely associated with particular ethnicities or populations, like Native Americans, Pacific Islanders, and some Jewish people.

Haplogroups reach back in time before genealogy and can give us a sense of community that’s not available by either looking in the mirror or through traditional records.

This Native American man is a member of high-level haplogroup Q-M242. However, some men who carry this haplogroup are not Native, but are of European or Middle Eastern origin.

I entered the haplogroup in the FamilyTreeDNA Discover tool, which I wrote about, here.

Checking the information about this haplogroup reveals that their common ancestor descended from an Asian man about 30,000 years ago.

The migration path in the Americans explains why this person would have an endogamous heritage.

Our tester would receive a much more refined haplogroup if he upgraded to the Big Y test at FamilyTreeDNA, which would remove all doubt.

However, even without additional testing, information about his matches at FamilyTreeDNA may be very illuminating.

The Q-M242 Native man’s Y DNA matches men with more granular haplogroups, shown above, at left. On the Haplogroup Origins report, you can see that these people have all selected the “US (Native American)” country option.

Another useful tool would be to check the public Y haplotree, here, and the public mitochondrial tree here, for self-reported ancestor location information for a specific haplogroup.

Here’s an example of mitochondrial haplogroup A2 and a few subclades on the public mitochondrial tree. You can see that the haplogroup is found in Mexico, the US (Native,) Canada, and many additional Caribbean, South, and Central American countries.

Of course, Y DNA and mitochondrial DNA (mtDNA) tell a laser-focused story of one specific line, each. The great news, if you’re seeking information about your mother or father, the Y is your father’s direct paternal (surname) line, and mitochondrial is your mother’s direct matrilineal line.

Y and mitochondrial DNA results combined with ethnicity, autosomal matching, and the wide range of other tools that open doors, you will be able to reveal a great deal of information about whether you have endogamous heritage or not – and if so, from where.

I’ve provided a resource for stepping through and interpreting your Y DNA results, here, and mitochondrial DNA, here.

Discover for Y DNA Only

If you’re a female, you may feel left out of Y DNA testing and what it can tell you about your heritage. However, there’s a back door.

You can utilize the Y DNA haplogroups of your closest autosomal matches at both FamilyTreeDNA and 23andMe to reveal information

Haplogroup information is available in the download files for both vendors, in addition to the Family Finder table view, below, at FamilyTreeDNA, or on your individual matches profile cards at both 23andMe and FamilyTreeDNA.

You can enter any Y DNA haplogroup in the FamilyTreeDNA Discover tool, here.

You’ll be treated to:

Your Haplogroup Story – how many testers have this haplogroup (so far), where the haplogroup is from, and the haplogroup’s age. In this case, the haplogroup was born in the Netherlands about 250 years ago, give or take 200 years. I know that it was 1806 or earlier based on the common ancestor of the men who tested.
Country Frequency – heat map of where the haplogroup is found in the world.
Notable Connections – famous and infamous (this haplogroup’s closest notable person is Leo Tolstoy).
Migration Map – migration path out of Africa and through the rest of the world.
Ancient Connections – ancient burials. His closest ancient match is from about 1000 years ago in Ukraine. Their shared ancestor lived about 2000 years ago.
Suggested Projects – based on the surname, projects that other matches have joined, and haplogroups.
Scientific Details – age estimates, confidence intervals, graphs, and the mutations that define this haplogroup.

I wrote about the Discover tool in the article, FamilyTreeDNA DISCOVER Launches – Including Y DNA Haplogroup Ages.

Endogamy Tools Summary Tables

Endogamy is a tough nut sometimes, especially if you’re starting from scratch. In order to make this topic a bit easier and to create a reference tool for you, I’ve created three summary tables.

Various endogamy-related tools available at each vendor which will or may assist with evaluating endogamy
Tools and their ability to detect endogamy in different groups
Tools best suited to assist people seeking information about unknown parents or grandparents

Summary of Endogamy Tools by Vendor

Please note that GEDMatch is not a DNA testing vendor, but they accept uploads and do have some tools that the testing vendors do not.

Tool	23andMe	Ancestry	FamilyTreeDNA	MyHeritage	GEDMatch
Ethnicity	Yes	Yes	Yes	Yes	Use the vendors
Ethnicity Painting	Yes + segments	Yes, limited	Yes + segments	Yes
Ethnicity Phasing	Yes	Partial	Yes	No
DNA Communities	No	Yes	No	No
Genetic Groups	No	No	No	Yes
Family Matching aka Bucketing	No	No	Yes	No
Chromosome Browser	Yes	No	Yes	Yes	Yes
AutoClusters	Through Genetic Affairs	No	Through Genetic Affairs	Yes, included	Yes, with subscription
Match List Download	Yes, restricted # of matches	No	Yes	Yes	Yes
Projects	No	No	Yes	No
Y DNA	High-level haplogroup only	No	Yes, full haplogroup with Big Y, matching, tools, Discover	No
Mitochondrial DNA	High-level haplogroup only	No	Yes, full haplogroup with mtFull, matching, tools	No
Public Y Tree	No	No	Yes	No
Public Mito Tree	No	No	Yes	No
Discover Y DNA – public	No	No	Yes	No
ROH	No	No	No	No	Yes

Summary of Endogamous Populations Identified by Each Tool

The following chart provides a guideline for which tools are useful for the following types of endogamous groups. Bolded tools require that both parents be descended from the same endogamous group, but several other tools give more definitive results with higher amounts of endogamy.

Y and mitochondrial DNA testing are not affected by admixture, autosomal DNA or anything from the “other” parent.

Tool	Jewish	Acadian	Anabaptist	Native	Other/General
Ethnicity	Yes	No	No	Yes	Pacific Islander
Ethnicity Painting	Yes	No	No	Yes	Pacific Islander
Ethnicity Phasing	Yes, if different	No	No	Yes, if different	Pacific Islander, if different
DNA Communities	Yes	Possibly	Possibly	Yes	Pacific Islander
Genetic Groups	Yes	Possibly	Possibly	Yes	Pacific Islander
Family Matching aka Bucketing	Yes	Yes	Possibly	Yes	Pacific Islander
Chromosome Browser	Possibly	Possibly	Yes, once segments or ancestors identified	Possibly	Pacific Islander, possibly
Total Matches	Yes, compared to non-endogamous	No	No	No	No, unknown
AutoClusters	Yes	Yes	Uncertain, probably	Yes	Pacific Islander
Estimated Relationships High	Not always	Sometimes	No	Sometimes	Uncertain, probably
Relationship Range High	Possibly, sometimes	Possibly	Possibly	Possibly	Pacific Islander, possibly
More, Smaller Segments	Yes	Yes	Probably	Yes	Pacific Islander, probably
Parents Related	Some but minimal	Possibly	Uncertain	Probably similar to Jewish	Uncertain, Possibly
Surnames	Probably	Probably	Probably Not	Possibly	Possibly
Locations	Possibly	Probably	Probably Not	Probably	Probably Pacific Islander
Projects	Probably	Probably	Possibly	Possibly	Probably Pacific Islander
Y DNA	Yes, often	Yes, often	No	Yes	Pacific Islander
Mitochondrial DNA	Yes, often	Sometimes	No	Yes	Pacific Islander
Y public tree	Probably not alone	No	No	Yes	Pacific Islander
MtDNA public tree	Probably not	No	No	Yes	Pacific Islander
Y DNA Discover	Yes	Possibly	Probably not, maybe projects	Yes	Pacific Islander

Summary of Endogamy Tools to Assist People Seeking Unknown Parents and Grandparents

This table provides a summary of when each of the various tools can be useful to:

People seeking unknown close relatives
People who already know who their close relatives are, but are seeking additional information or clues about their genealogy

I considered rating these on a 1 to 10 scale, but the relative usefulness of these tools is dependent on many factors, so different tools will be more or less useful to different people.

For example, ethnicity is very useful if someone is admixed from different populations, or even 100% of a specific endogamous population. It’s less useful if the tester is 100% European, regardless of whether they are seeking close relatives or not. Conversely, even “vanilla” ethnicity can be used to rule out majority or recent admixture with many populations.

Tools	Unknown Close Relative Seekers	Known Close Relatives – Enhance Genealogy
Ethnicity	Yes, to identify or rule out populations	Yes
Ethnicity Painting	Yes, possibly, depending on population	Yes, possibly, depending on population
Ethnicity Phasing	Yes, possibly, depending on population	Yes, possibly, depending on population
DNA Communities	Yes, possibly, depending on population	Yes, possibly, depending on population
Genetic Groups	Possibly, depending on population	Possibly, depending on population
Family Matching aka Bucketing	Not if parents are entirely unknown, but yes if one parent is known	Yes
Chromosome Browser	Unlikely	Yes
AutoClusters	Yes	Yes, especially at MyHeritage if Jewish
Estimated Relationships High	Not	No
Relationship Range High	Not reliably	No
More, Smaller Segments	Unlikely	Unlikely other than confirmation
Match List Download	Yes	Yes
Surnames	Yes	Yes
Locations	Yes	Yes
Projects	Yes	Yes
Y DNA	Yes, males only, direct paternal line, identifies surname lineage	Yes, males only, direct paternal line, identifies and correctly places surname lineage
Mitochondrial DNA	Yes, both sexes, direct matrilineal line only	Yes, both sexes, direct matrilineal line only
Public Y Tree	Yes for locations	Yes for locations
Public Mito Tree	Yes for locations	Yes for locations
Discover Y DNA	Yes, for heritage information	Yes, for heritage information
Parents Related – ROH	Possibly	Less useful

Acknowledgments

A HUGE thank you to several people who contributed images and information in order to provide accurate and expanded information on the topic of endogamy. Many did not want to be mentioned by name, but you know who you are!!!

If you have information to add, please post in the comments.

_____________________________________________________________

Follow DNAexplain on Facebook, here or follow me on Twitter, here.

Share the Love!

You’re always welcome to forward articles or links to friends and share on social media.

If you haven’t already subscribed (it’s free,) you can receive an email whenever I publish by clicking the “follow” button on the main blog page, here.

You Can Help Keep This Blog Free

Thank you so much.

DNA Purchases and Free Uploads

FamilyTreeDNA – Y, mitochondrial and autosomal DNA testing
MyHeritage DNA – Autosomal DNA test
MyHeritage FREE DNA file upload – Upload your DNA file from other vendors free
AncestryDNA – Autosomal DNA test
23andMe Ancestry – Autosomal DNA only, no Health
23andMe Ancestry Plus Health

Genealogy Products and Services

MyHeritage FREE Tree Builder – Genealogy software for your computer
MyHeritage Subscription with Free Trial
Legacy Family Tree Webinars – Genealogy and DNA classes, subscription-based, some free
Legacy Family Tree Software – Genealogy software for your computer
Newspapers.com – Search newspapers for your ancestors
NewspaperArchive – Search different newspapers for your ancestors

My Book

DNA for Native American Genealogy – by Roberta Estes, for those ordering the e-book from anyplace, or paperback within the United States
DNA for Native American Genealogy – for those ordering the paperback outside the US

Genealogy Books

Genealogical.com – Lots of wonderful genealogy research books

Genealogy Research

Legacy Tree Genealogists – Professional genealogy research

In Search of…Vendor Features, Strengths, and Testing Strategies

Posted on July 29, 2022 by Roberta Estes

This is the third in our series of articles about searching for unknown close family members, specifically; parents, grandparents, or siblings. However, these same techniques can be applied to ancestors further back in time too.

I introduced the series in the article, DNA: In Search of…New Series Launches.
In the second article, DNA: In Search of…What Do You Mean I’m Not Related to My Family? – and What Comes Next?, we discussed the discovery that something was amiss, then how to make sure a vial or upload mix-up didn’t happen. That was followed by the basics of the four kinds of DNA tests you’ll be able to use to solve your mystery.

In this article, we are going to discuss your goals and why testing or uploading to multiple vendors is advantageous – even if you could potentially solve the initial mystery at one vendor. Of course, the vendor you test with first might not be the vendor where the mystery will be solved, and data from multiple vendors might just be the combination you need.

Testing Strategy – You Might Get Lucky

I recommended in the first article that you go ahead and test at the different vendors.

Some people asked why, and specifically, why you wouldn’t just test at one vendor with the largest database first, then proceed to the others if you needed to.

That’s a great question, and I want to discuss the pros and cons in this article more specifically.

Clearly, that is one strategy, but the approach you select might differ based on a variety of considerations:

You may only be interested in obtaining the name of the person you are seeking – or – you may be interested in finding out as much as possible.
You may find that your best match at one company is decidedly unhelpful, and may even block you or your efforts, while someone elsewhere may be exactly the opposite.
Solving your mystery may be difficult and painful at one vendor, but the answer may be infinitely easier at a different vendor where the answer may literally be waiting.
There may not be enough, or the right information, or matches, at any one vendor, but the puzzle may be solvable by combining information from multiple vendors and tests. Every little bit helps.
You may have a sense of urgency, especially if you hope to meet the person and you’re searching for parents, siblings or grandparents who may be aging.
You may be cost-sensitive and cannot afford more than one test at a time. Fortunately, our upload strategy helps with that too. Also, watch for vendor sales or bundles.

From the time you order your DNA test, it will be about 6-8 weeks, give or take a week or two in either direction, before you receive results.

When those results arrive, you might get lucky, and the answer you seek is immediately evident with no additional work and just waiting for you at the first testing company.

If that’s the case, you got lucky and hit the jackpot. If you’re searching for both parents, that means you still have one parent to go.

Unidentified grandparents can be a little more difficult, because there are four of them to sort between.

If you discover a sibling or half-sibling, you still need to figure out who your common parent is. Sometimes X, Y, and mitochondrial DNA provides an immediate answer and is invaluable in these situations.

It’s more likely that you’ll find a group of somewhat more distant relatives. You may be able to figure out who your common grandparents or great-grandparents are, but not your parent(s) initially. Often, the closer generation or two is actually the most difficult because you’re dealing with contemporary records which are not publicly available, fewer descendants, and the topic may be very uncomfortable for some people. It’s also complicated because you’re often not dealing with “full” relationships, but “half,” as in half-sibling, half-niece, half-1C, etc.

You may spend a substantial amount of time trying to solve this puzzle at the first vendor before ordering your next test.

That second test will also take about 6-8 weeks, give or take. I recommend that you order the first two autosomal tests, now.

Order Your First Two Autosomal Tests

The two testing companies with the largest autosomal databases for comparison, Ancestry, and 23andMe, DO NOT accept DNA file uploads from other companies, so you’ll need to test with each individually.

Fortunately, you CAN transfer your autosomal DNA tests to both MyHeritage and FamilyTreeDNA, for free.

You will have different matches at each company. Some people will be far more responsive and helpful than others.

I recommend that you go ahead and order both the Ancestry and 23andMe tests initially, then upload the first one that comes back with results to both FamilyTreeDNA and MyHeritage. Complete, step-by-step download/upload instructions can be found here.

You can also upload your DNA file to a fifth company, Living DNA, but they are significantly smaller and heavily focused on England and Great Britain. However, if that’s where you’re searching, this might be where you find important matches.

You can also upload to GEDMatch, a popular third-party database, but since you’re going to be in the databases of the four major testing companies, there is little to be gained at GEDMatch in terms of people who have not tested at one of the major companies. Do NOT upload to GEDMatch INSTEAD of testing or uploading to the four major sites, as GEDMatch only has a small fraction of the testers in each of the vendor databases.

What GEDMatch does offer is a chromosome browser – something that Ancestry does NOT offer, along with other clustering tools which you may find useful. I recommend GEDMatch in addition to the others, if needed or desired.

Ordering Y and Mitochondrial DNA Tests

We reviewed the basics of the different kinds of DNA, here.

Some people have asked why, if autosomal DNA shows relatives on all of your lines, would one would want to order specific tests that focus on just one line?

It just so happens that the two lines that Y and mitochondrial DNA test ARE the two lines you’re seeking – direct maternal – your mother (and her mother), and direct paternal, your father (and his father.)

These two tests are different kinds of DNA tests, testing a different type of DNA, and provide very focused information, and matches, not available from autosomal DNA tests.

For men, Y DNA can reveal your father’s surname, which can be an invaluable clue in narrowing paternal candidates. Knowing that my brother’s Y DNA matched several men with the surname of Priest made me jump for joy when he matched a woman of that same last name at another vendor.

Here’s a quote from one of the members of a Y DNA project where I’m the volunteer administrator:

“Thank you for your help understanding and using all 4 kinds of my DNA results. By piecing the parts together, I identified my father. Specifically, without Y DNA testing, and the Big Y test, I would not have figured out my parental connection, and then that my paternal line had been assigned to the wrong family. STR testing gave me the correct surname, but the Big Y test showed me exactly where I fit, and disproved that other line. I’m now in touch with my father, and we both know who our relatives are – two things that would have never happened otherwise.”

If you fall into the category of, “I want to know everything I can now,” then order both Y and mitochondrial DNA tests initially, along with those two autosomal tests.

You will need to order Y (males only) and mitochondrial DNA tests separately from the autosomal Family Finder test, although you should order on the same account as your Family Finder test at FamilyTreeDNA.

If you take the Family Finder autosomal test at FamilyTreeDNA or upload your autosomal results from another vendor, you can simply select to add the Y and mitochondrial DNA tests to your account, and they will send you a swab kit.

Conversely, you can order either a Y or mitochondrial DNA test, and then add a Family Finder or upload a DNA file if you’ve already taken an autosomal DNA test to that account too. Note – these might not be current prices – check here for sales.

You will want all 3 of your tests on the same account so that you can use the Advanced Matches feature.

Using Advanced Matches, you’ll be able to view people who match you on combinations of multiple kinds of tests.

For example, if you’re a male, you can see if your Y DNA matches also match you on the Family Finder autosomal test, and if so, how closely?

Here’s an example.

In this case, I requested matches to men with 111 markers who also match the tester on the Family Finder test. I discovered both a father and a full sibling, plus a few more distant matches. There were ten total combined matches to work with, but I’ve only shown five for illustration purposes.

This information is worth its weight in gold.

Is the Big Y Test Worth It?

People ask if the Big Y test is really worth the extra money.

The answer is, “it depends.”

If all you’re looking for are matching surnames, then the answer is probably no. A 37 or 111 marker test will probably suffice. Eventually, you’ll probably want to do the Big Y, though.

If you’re looking for exact placement on the tree, with an estimated distance to other men who have taken that test, then the answer is, “absolutely.” I wish the Big Y test had been available back when I was hunting for my brother’s biological family.

The Big Y test provides a VERY specific haplogroup and places you very accurately in your location on the Y DNA tree, along with other men of your line, assuming they have tested. You may find the surname, as well as being placed within a generation or a few of current in that family line.

Additionally, the Discover page provides estimates of how far in the past you share a common ancestor with other people that share the same haplogroup. This can be a HUGE boon to a male trying to figure out his surname line and how closely in time he’s related to his matches.

Big Y NPE Examples

Y DNA SNP mutations tested with the Big Y test accrue a mutation about every generation, or so. Sometimes we see mutations in every generation.

Here’s an example from my Campbell line. Haplogroups are listed in the top three rows.

I created this spreadsheet, but FamilyTreeDNA provides a block tree for Big Y testers. I’ve added the genealogy of the testers, with the various Big Y testers at the bottom and common ancestors above, in bold.

We have two red NPE lines showing. The MacFarlane tester matches M. Campbell VERY closely, and two Clark males match W. Campbell and other Campbells quite closely. We utilized autosomal plus the Y results to determine where the unknown parentage events occurred. Today, if you’re a Clark or MacFarlane male, or a male by any other surname who was fathered by a Y chromosome Campbell male (by any surname), you’ll know exactly where you fit in this group of testers on your direct paternal line.

Y DNA is important because men often match other men with the same surname, which is a HUGE clue, especially in combination with autosomal DNA results. I say “often,” because it’s possible that no one in your line has tested, or that your father’s surname is not his biological surname either.

Y and mitochondrial DNA matches can be HUGELY beneficial pieces of information either by confirming a close autosomal relationship on that line, or eliminating the possibility.

Lineage-Specific Population Information

In addition to matching other people, both Y and mitochondrial DNA tests provide you with lineage-specific population or “ethnicity” information for this specific line which helps you focus your research.

For example, if you view the Y DNA Haplogroup Origins shown for this tester, you’ll discover that these matches are Jewish.

The tester might not be Jewish on any other genealogical line, but they definitely have Jewish ancestry on their Y DNA, paternal, line.

The same holds true for mitochondrial DNA as well. The main difference with mitochondrial DNA is that the surname changes with each generation, haplogroups today (pre-Million Mito) are less specific, and fewer people have been tested.

Y and Mitochondrial DNA Benefits

Knowing your Y and mitochondrial DNA haplogroups not only arm you with information about yourself, they provide you with matching tools and an avenue to include or exclude people as your direct line paternal or maternal ancestors.

Your Y and mitochondrial DNA can also provide CRITICALLY IMPORTANT information about whether that direct line ancestor belonged to an endogamous population, and where they came from.

For example, both Jewish and Native populations are endogamous populations, meaning highly intermarried for many generations into the past.

Knowing that helps you adjust your autosomal relationship analysis.

Why Order Multiple Tests Initially Instead of Waiting?

If you’ve been adding elapsed time, two autosomal tests (Ancestry and 23andMe), two uploads (to FamilyTreeDNA and MyHeritage,) a Y DNA test, and a mitochondrial DNA test, if all purchased serially, one following the other, means you’ll be waiting approximately 6-8 months.

Do you want to wait 6-8 months for all of your results? Can you afford to?

Part of this answer has to do with what, exactly, you’re seeking, and how patient you are.

Only you can answer that question.

A Name or Information?

Are you seeking the name or identity of a person, or are you seeking information about that person?

Most people don’t just want to put a name to the person they are seeking – they want to learn about them and the rest of the family that door opens.

You will have different matches at each company. Even after you identify the person you seek, the people you match may have trees you can view, with family photos and other important information. (Remember, you can’t see living people in trees.) Your matches may have first-person information about your relative and may know them if they are living, or have known them.

Furthermore, you may have the opportunity to meet that person. Time delayed may not be able to be recovered or regained.

One cousin that I assisted discovered that his father had died just six weeks before he broke through that wall and made the connection.

Working with data from all vendors simultaneously will allow you to combine that data and utilize it together. Using your “best” matches at each company, augmented by X, Y, and/or mitochondrial DNA, can make MUCH shorter work of this search.

Your closest autosomal matches are the most important and insightful. In this series, I will be working with the top 15 autosomal results at each vendor, at least initially. This approach provides me with the best chance of meaningful close relationship discoveries.

Data and Vendor Results Integration

Here’s a table of my two closest maternal and paternal matches at the four major vendors. I can assign these to maternal or paternal sides, because I know the identity of my parents, and I know some of these people. If an adoptee was doing this, the top 4 could all be from one parent, which is why we work with the top 15 or so matches.

Vendor	Closest Maternal	Closest Paternal	Comments
Ancestry	1C, 1C1R	Half-1C, 2C	I recognized both of the maternal and neither of the paternal.
23andMe	2C, 2C	1C1R, half-gr-niece	Recognized both maternal, one paternal
MyHeritage	Mother uploaded, 1C	Half-niece, half-1C	Recognized both maternal, one paternal
FamilyTreeDNA	Mother tested, 1C1R	Parent/child, half-gr-niece uploaded	Recognized all 4

To be clear, I tested my mother’s mitochondrial DNA before she passed away, but because FamilyTreeDNA archives DNA samples for 25 years, as the owner/manager of her DNA kit, I was able to order the Family Finder test after she had passed away. Her tests are invaluable today.

Then, years later, I uploaded her results to MyHeritage.

If I was an adopted child searching for my mother, I would find her results in both databases today. She’ll never be at either 23andMe or Ancestry because she passed away before she could test there and they don’t accept uploads.

Looking at the other vendors, my half-niece at MyHeritage is my paternal half-sibling’s daughter. My half-sibling is deceased, so this is as close as I’ll ever get to matching her.

At 23andMe, the half-great-niece is my half-siblings grandchild.

It’s interesting that I have no matches to descendants of my other half-sibling, who is also deceased. Maybe I should ask if any of his children or grandchildren have tested. Hmmmm…..

You can see that I stand a MUCH BETTER chance of figuring out close relatives using the combined closest matches of all four databases instead of the top matches from just one database. It doesn’t matter if the database is large if the right person or people didn’t test there.

Combine Resources

I’ll be providing analysis methodologies for working with results from all of the vendors together, just in case your answer is not immediately obvious. Taking multiple DNA tests facilitates using all of these tools immediately, not months later. Solving the puzzle sooner means you may not miss valuable opportunities.

You may also discover that the door slams shut with some people, or they may not respond to your queries, but another match may be unbelievably helpful. Don’t limit your possibilities.

Let’s take a look at the strengths of each vendor.

Vendor Strengths and Things to Know

Every vendor has product strengths and idiosyncracies that the others do not. All vendors provide matches and shared matches. Each vendor provides ethnicity tools which certainly can be useful, but the features differ and will be covered elsewhere.

Ancestry – Ancestry has the largest autosomal database and includes ThruLines, but no Y or mitochondrial DNA testing, no clusters, no chromosome browser, no triangulation, and no X chromosome matching or reporting. Ancestry provides genealogical records, advanced tools, and full tree access to your matches’ trees with an Ancestry subscription. Ancestry does not allow downloading your match list or segment match information, but the other vendors do.
23andMe – 23andMe has the second largest database. They provide triangulation and genetic trees that include your closest matches. Many people test at 23andMe for health and wellness information, so 23andMe has people in their database who are not specifically interested in genealogy and probably won’t have tested elsewhere, but may be invaluable to your search. 23andMe provides Y and mtDNA high-level haplogroups only, but no matching or other haplogroup information. If you purchase a new test or have a V5 ancestry+health current test, you can expand your matches from a limit of 1500 to about 5000 with an annual membership. For seeking close relatives, you don’t need those features, but you may want them for genealogy. 23andMe is the only vendor that limits their customers’ matches.
MyHeritage – MyHeritage has the third largest database that includes lots of European testers. MyHeritage provides triangulation, Theories of Family Relativity, and an integrated cluster tool* but does not report X matches and does not offer Y or mitochondrial DNA testing. MyHeritage accepts autosomal DNA file uploads from other testing companies for free and provides access to advanced DNA features for a one-time unlock fee. MyHeritage includes genealogical records and full feature access to advanced DNA tools with a Complete Subscription. (Free 15 days trial subscription, here.)
FamilyTreeDNA Family Finder (autosomal) – FamilyTreeDNA is the oldest DNA testing company, meaning their database includes people who initially tested 20+ years ago and have since passed away. This, in essence, gets you one generation further back in time, with the possibility of stronger matches. Their Family Matching feature buckets and triangulates your matches, assigning them to your maternal or paternal sides if you link known matches to their proper place in your tree, even if your parents have not tested. FamilyTreeDNA accepts uploads from other testing companies for free and provides advanced DNA features for a one time unlock fee.
FamilyTreeDNA – FamilyTreeDNA is the only company that offers both Y and mitochondrial DNA testing products that include matching, integration with autosomal test results, and other tools. These two tests are lineage-specific and don’t have to be sorted from your other ancestral lines.

I wrote about using Y DNA results, here.

I wrote about using mitochondrial DNA results, here.

*Third parties such as Genetic Affairs provide clustering tools for both 23andMe and FamilyTreeDNA. Clustering is integrated at MyHeritage. Ancestry does not provide a tool for nor allow third-party clustering. If the answer you seek isn’t immediately evident, Genetic Affairs clustering tools group people together who are related to each other, and you, and create both genetic and genealogical trees based on shared matches. You can read more about their tools, here.

Fish in all the Ponds and Use All the Bait Possible

Here’s the testing and upload strategy I recommend, based on the above discussion and considerations. The bottom line is this – if you want as much information as possible, as quickly as possible, order the four tests in red initially. Then transfer the first autosomal test results you receive to the two companies identified in blue. Optionally, GEDMatch may have tools you want to work with, but they aren’t a testing company.

What	When	Ancestry	23andMe	MyHeritage	FamilyTreeDNA
Order autosomal	Initially	X	X
Order Y 111 or Big-Y DNA test if male	Initially				X
Order mitochondrial DNA test	Initially if desired				X
Upload free autosomal	When Ancestry or 23andMe results are available			X	X
Unlock Advanced Tools	When you upload			$29	$19
Optional GEDMatch free upload	If desired, can subscribe for advanced tools

When you upload an autosomal DNA file to a vendor site, only upload one file per site, per tester. Otherwise, multiple tests simply glom up everyone’s match list with multiple matches to the same person.

Multiple vendor sites will hopefully provide multiple close matches, which increase your opportunity to discover INFORMATION about your family, not just the identity of the person you seek.

Or maybe you prefer to wait and order these DNA tests serially, waiting until one set of results is back and you’re finished working with them before ordering the next one. If so, that means you’re a MUCH more patient person than me. 😊

Our next article in this series will be about endogamy, how to know if it applies to you, and what that means to your search.

_____________________________________________________________

Follow DNAexplain on Facebook, here or follow me on Twitter, here.

Share the Love!

You’re always welcome to forward articles or links to friends and share on social media.

If you haven’t already subscribed (it’s free,) you can receive an email whenever I publish by clicking the “follow” button on the main blog page, here.

You Can Help Keep This Blog Free

Thank you so much.

DNA Purchases and Free Uploads

FamilyTreeDNA – Y, mitochondrial, and autosomal DNA testing
MyHeritage DNA – Autosomal DNA test
MyHeritage FREE DNA file upload – Upload your DNA file from other vendors free
AncestryDNA – Autosomal DNA test
23andMe Ancestry – Autosomal DNA only, no Health
23andMe Ancestry Plus Health

Genealogy Products and Services

MyHeritage FREE Tree Builder – Genealogy software for your computer
MyHeritage Subscription with Free Trial
Legacy Family Tree Webinars – Genealogy and DNA classes, subscription-based, some free
Legacy Family Tree Software – Genealogy software for your computer
Newspapers.com – Search newspapers for your ancestors
NewspaperArchive – Search different newspapers for your ancestors

My Book

DNA for Native American Genealogy – by Roberta Estes, for those ordering the e-book from anyplace, or paperback within the United States
DNA for Native American Genealogy – for those ordering the paperback outside the US

Genealogy Books

Genealogical.com – Lots of wonderful genealogy research books

Genealogy Research

Legacy Tree Genealogists – Professional genealogy research

Top Ten RootsTech 2022 DNA Sessions + All DNA Session Links

Posted on March 8, 2022 by Roberta Estes

The official dates of RootsTech 2022 were March 3-5, but the sessions and content in the vendor booths are still available. I’ve compiled a list of the sessions focused on DNA, with web links on the RootsTech YouTube channel

YouTube reports the number of views, so I was able to compile that information as of March 8, 2022.

I do want to explain a couple of things to add context to the numbers.

Most speakers recorded their sessions, but a few offered live sessions which were recorded, then posted later for participants to view. However, there have been glitches in that process. While the sessions were anticipated to be available an hour or so later, that didn’t quite happen, and a couple still aren’t posted. I’m sure the presenters are distressed by this, so be sure to watch those when they are up and running.

The Zoom rooms where participants gathered for the live sessions were restricted to 500 attendees. The YouTube number of views does not include the number of live viewers, so you’ll need to add an additional number, up to 500.

When you see a number before the session name, whether recorded or live, that means that the session is part of a series. RootsTech required speakers to divide longer sessions into a series of shorter sessions no longer than 15-20 minutes each. The goal was for viewers to be able to watch the sessions one after the other, as one class, or separately, and still make sense of the content. Let’s just say this was the most challenging thing I’ve ever done as a presenter.

For recorded series sessions, these are posted as 1, 2 and 3, as you can see below with Diahan Southard’s sessions. However, with my live session series, that didn’t happen. It looks like my sessions are a series, but when you watch them, parts 1, 2 and 3 are recorded and presented as one session. Personally, I’m fine with this, because I think the information makes a lot more sense this way. However, it makes comparisons difficult.

This was only the second year for RootsTech to be virtual and the conference is absolutely HUGE, so live and learn. Next year will be smoother and hopefully, at least partially in-person too.

When I “arrived” to present my live session, “Associating Autosomal DNA Segments With Ancestors,” my lovely moderator, Rhett, told me that they were going to livestream my session to the RootsTech page on Facebook as well because they realized that the 500 Zoom seat limit had been a problem the day before with some popular sessions. I have about 9000 views for that session and more than 7,400 of them are on the RootsTech Facebook page – and that was WITHOUT any advance notice or advertising. I know that the Zoom room was full in addition. I felt kind of strange about including my results in the top ten because I had that advantage, but I didn’t know quite how to otherwise count my session. As it turns out, all sessions with more than 1000 views made it into the top ten so mine would have been there one way or another. A big thank you to everyone who watched!

I hope that the RootsTech team notices that the most viewed session is the one that was NOT constrained by the 500-seat limited AND was live-streamed on Facebook. Seems like this might be a great way to increase session views for everyone next year. Hint, hint!!!

I also want to say a huge thank you to all of the presenters for producing outstanding content. The sessions were challenging to find, plus RootsTech is always hectic, even virtually. So, I know a LOT of people will want to view these informative sessions, now that you know where to look and have more time. Please remember to “like” the session on YouTube as a way of thanking your presenter.

With 140 DNA-focused sessions available, you can watch a new session, and put it to use, every other day for the next year! How fun is that! You can use this article as your own playlist.

Please feel free to share this article with your friends and genealogy groups so everyone can learn more about using DNA for genealogy.

Ok, let’s look at the top 10. Drum roll please…

Top 10 Most Viewed RootsTech Sessions

	Session Title	Presenter	YouTube Link	Views
1	1. Associating Autosomal DNA Segments With Ancestors	Roberta Estes (live)	https://www.youtube.com/watch?v=_IHSCkNnX48	~9000: 1019 + 500 live viewers + 7,400+ Facebook
2	1. What to Do with Your DNA Test Results in 2022 (part 1 of 3)	Diahan Southard	https://www.youtube.com/watch?v=FENAKAYLXX4	7428
3	Who Is FamilyTreeDNA?	FamilyTreeDNA – Bennett Greenspan	https://www.youtube.com/watch?v=MHFtwoatJ-A	2946
4	2. What to Do with Your DNA Test Results in 2022 (part 2 of 3)	Diahan Southard	https://www.youtube.com/watch?v=mIllhtONhlI	2448
5	Latest DNA Painter Releases	DNAPainter Jonny Perl (live)	https://www.youtube.com/watch?v=iLBThU8l33o	2230 + live viewers
6	DNA Painter Introduction	DNAPainter – Jonny Perl	https://www.youtube.com/watch?v=Rpe5LMPNmf0	1983
7	3. What to Do with Your DNA Test Results in 2022 (part 3 of 3)	Diahan Southard	https://www.youtube.com/watch?v=hemY5TuLmGI	1780
8	The Tree of Mankind Age Estimates	Paul Maier	https://www.youtube.com/watch?v=jjkL8PWAEwk	1638
9	A Sneak Peek at FamilyTreeDNA Coming Attractions	FamilyTreeDNA (live)	https://www.youtube.com/watch?v=K9sKqNScvnE	1270 + live viewers
10	Extending Time Horizons with DNA	Rob Spencer (live)	https://www.youtube.com/watch?v=wppXD1Zz2sQ	1037 + live viewers

All DNA-Focused Sessions

I know you’ll find LOTS of goodies here. Which ones are your favorites?

	Session	Presenter	YouTube Link	Views
1	Estimating Relationships by Combining DNA from Multiple Siblings	Amy Williams	https://www.youtube.com/watch?v=xs1U0ohpKSA	201
2	Overview of HAPI-DNA.org	Amy Williams	https://www.youtube.com/watch?v=FjNiJgWaBeQ	126
3	How do AncestryDNA® Communities help tell your story? \| Ancestry®	Ancestry	https://www.youtube.com/watch?v=EQNpUxonQO4	183
4	AncestryDNA® 201	Ancestry – Crista Cowan	https://www.youtube.com/watch?v=lbqpnXloM5s	494
5	Genealogy in a Minute: Increase Discoveries by Attaching AncestryDNA® Results to Family Tree	Ancestry – Crista Cowan	https://www.youtube.com/watch?v=iAqwSCO8Pvw	369
6	AncestryDNA® 101: Beginner’s Guide to AncestryDNA® \| Ancestry®	Ancestry – Lisa Elzey	https://www.youtube.com/watch?v=-N2usCR86sY	909
7	Hidden in Plain Sight: Free People of Color in Your Family Tree	Cheri Daniels	https://www.youtube.com/watch?v=FUOcdhO3uDM	179
8	Finding Relatives to Prevent Hereditary Cancer	ConnectMyVariant – Dr. Brian Shirts	https://www.youtube.com/watch?v=LpwLGgEp2IE	63
9	Piling on the chromosomes	Debbie Kennett	https://www.youtube.com/watch?v=e14lMsS3rcY	465
10	Linking Families With Rare Genetic Condition Using Genealogy	Deborah Neklason	https://www.youtube.com/watch?v=b94lUfeAw9k	43
11	1. What to Do with Your DNA Test Results in 2022	Diahan Southard	https://www.youtube.com/watch?v=FENAKAYLXX4	7428
12	1. What to Do with Your DNA Test Results in 2022	Diahan Southard	https://www.youtube.com/watch?v=hemY5TuLmGI	1780
13	2. What to Do with Your DNA Test Results in 2022	Diahan Southard	https://www.youtube.com/watch?v=mIllhtONhlI	2448
14	DNA Testing For Family History	Diahan Southard	https://www.youtube.com/watch?v=kCLuOCC924s	84
15	Understanding Your DNA Ethnicity Estimate at 23andMe	Diana Elder	https://www.youtube.com/watch?v=xT1OtyvbVHE	66
16	Understanding Your Ethnicity Estimate at FamilyTreeDNA	Diana Elder	https://www.youtube.com/watch?v=XosjViloVE0	73
17	DNA Monkey Wrenches	Katherine Borges	https://www.youtube.com/watch?v=Thv79pmII5M	245
18	Advanced Features in your Ancestral Tree and Fan Chart	DNAPainter – Jonny Perl	https://www.youtube.com/watch?v=4u5Vf13ZoAc	425
19	DNA Painter Introduction	DNAPainter – Jonny Perl	https://www.youtube.com/watch?v=Rpe5LMPNmf0	1983
20	Getting Segment Data from 23andMe DNA Matches	DNAPainter – Jonny Perl	https://www.youtube.com/watch?v=8EBRI85P3KQ	134
21	Getting segment data from FamilyTreeDNA DNA matches	DNAPainter – Jonny Perl	https://www.youtube.com/watch?v=rWnxK86a12U	169
22	Getting segment data from Gedmatch DNA matches	DNAPainter – Jonny Perl	https://www.youtube.com/watch?v=WF11HEL8Apk	163
23	Getting segment data from Geneanet DNA Matches	DNAPainter – Jonny Perl	https://www.youtube.com/watch?v=eclj8Ap0uK4	38
24	Getting segment data from MyHeritage DNA matches	DNAPainter – Jonny Perl	https://www.youtube.com/watch?v=9rGwOtqbg5E	160
25	Inferred Chromosome Mapping: Maximize your DNA Matches	DNAPainter – Jonny Perl	https://www.youtube.com/watch?v=tzd5arHkv64	688
26	Keeping track of your genetic family tree in a fan chart	DNAPainter – Jonny Perl	https://www.youtube.com/watch?v=W3Hcno7en94	806
27	Mapping a DNA Match in a Chromosome Map	DNAPainter – Jonny Perl	https://www.youtube.com/watch?v=A61zQFBWaiY	423
28	Setting up an Ancestral Tree and Fan Chart and Exploring Tree Completeness	DNAPainter – Jonny Perl	https://www.youtube.com/watch?v=lkJp5Xk1thg	77
29	Using the Shared cM Project Tool to Evaluate DNA Matches	DNAPainter – Jonny Perl	https://www.youtube.com/watch?v=vxhn9l3Dxg4	763
30	Your First Chromosome Map: Using your DNA Matches to Link Segments to Ancestors	DNAPainter – Jonny Perl	https://www.youtube.com/watch?v=tzd5arHkv64	688
31	DNA Painter for absolute beginners	DNAPainter (Jonny Perl)	https://www.youtube.com/watch?v=JwUWW4WHwhk	1196
32	Latest DNA Painter Releases	DNAPainter (live)	https://www.youtube.com/watch?v=iLBThU8l33o	2230 + live viewers
33	Unraveling your genealogy with DNA segment networks using AutoSegment from Genetic Affairs	Evert-Jan Blom	https://www.youtube.com/watch?v=rVpsJSqOJZI	162
34	Unraveling your genealogy with genetic networks using AutoCluster	Evert-Jan Blom	https://www.youtube.com/watch?v=ZTKSz_X7_zs	201
35	Unraveling your genealogy with reconstructed trees using AutoTree & AutoKinship from Genetic Affairs	Evert-Jan Blom	https://www.youtube.com/watch?v=OmDQoAn9tVw	143
36	Research Like a Pro with DNA – A Genealogist’s Guide to Finding and Confirming Ancestors with DNA	Family Locket Genealogists	https://www.youtube.com/watch?v=NYpLscJJQyk	183
37	How to Interpret a DNA Network Graph	Family Locket Genealogists – Diana Elder	https://www.youtube.com/watch?v=i83WRl1uLWY	393
38	Find and Confirm Ancestors with DNA Evidence	Family Locket Genealogists – Nicole Dyer	https://www.youtube.com/watch?v=DGLpV3aNuZI	144
39	How To Make A DNA Network Graph	Family Locket Genealogists – Nicole Dyer	https://www.youtube.com/watch?v=MLm_dVK2kAA	201
40	Create A Family Tree With Your DNA Matches-Use Lucidchart To Create A Picture Worth A Thousand Words	Family Locket Genealogists – Robin Wirthlin	https://www.youtube.com/watch?v=RlRIzcW-JI4	270
41	Charting Companion 7 – DNA Edition	Family Tree Maker	https://www.youtube.com/watch?v=k2r9rkk22nU	316
42	Family Finder Chromosome Browser: How to Use	FamilyTreeDNA	https://www.youtube.com/watch?v=w0_tgopBn_o	750
43	FamilyTreeDNA: 22 Years of Breaking Down Brick Walls	FamilyTreeDNA	https://www.familysearch.org/rootstech/session/familytreedna-22-years-of-breaking-down-brick-walls	Not available
44	Review of Autosomal DNA, Y-DNA, & mtDNA	FamilyTreeDNA – Janine Cloud	https://www.youtube.com/watch?v=EJoQVKxgaVY	77
45	Who Is FamilyTreeDNA?	FamilyTreeDNA – Bennett Greenspan	https://www.youtube.com/watch?v=MHFtwoatJ-A	2946
46	Part 1: How to Interpret Y-DNA Results, A Walk Through the Big Y	FamilyTreeDNA – Casimir Roman	https://www.youtube.com/watch?v=ra1cjGgvhRw	684
47	Part 2: How to Interpret Y-DNA Results, A Walk Through the Big Y	FamilyTreeDNA – Casimir Roman	https://www.youtube.com/watch?v=CgqcjBD6N8Y	259
48	Big Y-700: A Brief Overview	FamilyTreeDNA – Janine Cloud	https://www.youtube.com/watch?v=IefUipZcLCQ	96
49	Mitochondrial DNA & The Million Mito Project	FamilyTreeDNA – Janine Cloud	https://www.youtube.com/watch?v=5Zppv2uAa6I	179
50	Mitochondrial DNA: What is a Heteroplasmy	FamilyTreeDNA – Janine Cloud	https://www.youtube.com/watch?v=ZeGTyUDKySk	57
51	Y-DNA Big Y: A Lifetime Analysis	FamilyTreeDNA – Janine Cloud	https://www.youtube.com/watch?v=E6NEU92rpiM	154
52	Y-DNA: How SNPs Are Added to the Y Haplotree	FamilyTreeDNA – Janine Cloud	https://www.youtube.com/watch?v=CGQaYcroRwY	220
53	Family Finder myOrigins: Beginner’s Guide	FamilyTreeDNA – Katy Rowe	https://www.youtube.com/watch?v=VrJNpSv8nlA	88
54	Mitochondrial DNA: Matches Map & Results for mtDNA	FamilyTreeDNA – Katy Rowe	https://www.youtube.com/watch?v=YtA1j01MOvs	190
55	Mitochondrial DNA: mtDNA Mutations Explained	FamilyTreeDNA – Katy Rowe	https://www.youtube.com/watch?v=awPs0cmZApE	340
56	Y-DNA: Haplotree and SNPs Page Overview	FamilyTreeDNA – Katy Rowe	https://www.youtube.com/watch?v=FOuVhoMD-hw	432
57	Y-DNA: Understanding the Y-STR Results Page	FamilyTreeDNA – Katy Rowe	https://www.youtube.com/watch?v=gCeZz1rQplI	148
58	Y-DNA: What Is Genetic Distance?	FamilyTreeDNA – Katy Rowe	https://www.youtube.com/watch?v=qJ6wY6ILhfg	149
59	DNA Tools: myOrigins 3.0 Explained, Part 1	FamilyTreeDNA – Paul Maier	https://www.youtube.com/watch?v=ACgY3F4-w78	74
60	DNA Tools: myOrigins 3.0 Explained, Part 2	FamilyTreeDNA – Paul Maier	https://www.youtube.com/watch?v=h7qU36bIFg0	50
61	DNA Tools: myOrigins 3.0 Explained, Part 3	FamilyTreeDNA – Paul Maier	https://www.youtube.com/watch?v=SWlGPm8BGyU	36
62	African American Genealogy Research Tips	FamilyTreeDNA – Sherman McRae	https://www.youtube.com/watch?v=XdbkM58rXIQ	153
63	Connecting With My Ancestors Through Y-DNA	FamilyTreeDNA – Sherman McRae	https://www.youtube.com/watch?v=xbo1XnLkuQU	200
64	Join The Million Mito Project	FamilyTreeDNA (Join link)	https://www.familysearch.org/rootstech/session/join-the-million-mito-project	link
65	View the World’s Largest mtDNA Haplotree	FamilyTreeDNA (Link to mtDNA tree)	https://www.familytreedna.com/public/mt-dna-haplotree/L	n/a
66	View the World’s Largest Y Haplotree	FamilyTreeDNA (Link to Y tree)	https://www.familytreedna.com/public/y-dna-haplotree/A	link
67	A Sneak Peek at FamilyTreeDNA Coming Attractions	FamilyTreeDNA (live)	https://www.youtube.com/watch?v=K9sKqNScvnE	1270 + live viewers
68	DNA Upload: How to Transfer Your Autosomal DNA Data	FamilyTreeDNA -Katy Rowe	https://www.youtube.com/watch?v=CS-rH_HrGlo	303
69	Family Finder myOrigins: How to Compare Origins With Your DNA Matches	FamilyTreeDNA -Katy Rowe	https://www.youtube.com/watch?v=7mBmWhM4j9Y	145
70	Join Group Projects at FamilyTreeDNA	FamilyTreeDNA link to learning center article)	https://www.familysearch.org/rootstech/session/join-group-projects-at-familytreedna	link
71	Product Demo – Unraveling your genealogy with reconstructed trees using AutoKinship	GEDmatch	https://www.youtube.com/watch?v=R7_W0FM5U7c	803
72	Towards a Genetic Genealogy Driven Irish Reference Genome	Gerard Corcoran	https://www.youtube.com/watch?v=6Kx8qeNiVmo	155
73	Discovering Biological Origins in Chile With DNA: Simple Triangulation	Gonzalo Alexis Luengo Orellana	https://www.youtube.com/watch?v=WcVby54Uigc	40
74	Cousin Lynne: An Adoption Story	International Association of Jewish Genealogical Societies	https://www.youtube.com/watch?v=AptMcV4_B4o	111
75	Using DNA Testing to Uncover Native Ancestry	Janine Cloud	https://www.youtube.com/watch?v=edzebJXepMA	205
76	1. Forensic Genetic Genealogy	Jarrett Ross	https://www.youtube.com/watch?v=0euIDZTmx5g	58
77	Reunited and it Feels so Good	Jennifer Mendelsohn	https://www.youtube.com/watch?v=X-hxjm7grBE	57
78	Genealogical Research and DNA Testing: The Perfect Companions	Kimberly Brown	https://www.youtube.com/watch?v=X82jA3xUVXk	80
79	Finding a Jewish Sperm Donor	Kitty Munson Cooper	https://www.youtube.com/watch?v=iKRjFfNcpug	164
80	Using DNA in South African Genealogy	Linda Farrell	https://www.youtube.com/watch?v=HXkbBWmORM0	141
81	Using DNA Group Projects In Your Family History Research	Mags Gaulden	https://www.youtube.com/watch?v=0tX7QDib4Cw	165
82	2. The Expansion of Genealogy Into Forensics	Marybeth Sciaretta	https://www.youtube.com/watch?v=HcEO-rMe3Xo	35
83	DNA Interest Groups That Keep ’em Coming Back	McKell Keeney (live)	https://www.youtube.com/watch?v=HFwpmtA_QbE	180 plus live viewers
84	Searching for Close Relatives with Your DNA Results	Mckell Keeney (live)	https://www.familysearch.org/rootstech/session/searching-for-close-relatives-with-your-dna-results	Not yet available
85	Top Ten Reasons To DNA Test For Family History	Michelle Leonard	https://www.youtube.com/watch?v=1B9hEeu_dic	181
86	Top Tips For Identifying DNA Matches	Michelle Leonard	https://www.youtube.com/watch?v=-3Oay_btNAI	306
87	Maximising Messages	Michelle Patient	https://www.youtube.com/watch?v=4TRmn0qzHik	442
88	How to Filter and Sort Your DNA Matches	MyHeritage	https://www.youtube.com/watch?v=fmIgamFDvc8	88
89	How to Get Started with Your DNA Matches	MyHeritage	https://www.youtube.com/watch?v=JPOzhTxhU0E	447
90	How to Track DNA Kits in MyHeritage`	MyHeritage	https://www.youtube.com/watch?v=2W0zBbkBJ5w	28
91	How to Upload Your DNA Data to MyHeritage	MyHeritage	https://www.youtube.com/watch?v=nJ4RoZOQafY	82
92	How to Use Genetic Groups	MyHeritage	https://www.youtube.com/watch?v=PtDAUHN-3-4	62
	My Story: Hope	MyHeritage	https://www.youtube.com/watch?v=qjyggKZEXYA	133
93	MyHeritage Keynote, RootsTech 2022	MyHeritage	https://www.familysearch.org/rootstech/session/myheritage-keynote-rootstech-2022	Not available
94	Using Labels to Name Your DNA Match List	MyHeritage	https://www.youtube.com/watch?v=enJjdw1xlsk	139
95	An Introduction to DNA on MyHeritage	MyHeritage – Daniel Horowitz	https://www.youtube.com/watch?v=1I6LHezMkgc	60
96	Using MyHeritage’s Advanced DNA Tools to Shed Light on Your DNA Matches	MyHeritage – Daniel Horowitz	https://www.youtube.com/watch?v=Pez46Xw20b4	110
97	You’ve Got DNA Matches! Now What?	MyHeritage – Daniel Horowitz	https://www.youtube.com/watch?v=gl3UVksA-2E	260
98	My Story: Lizzie and Ayla	MyHeritage – Elizbeth Shaltz	https://www.youtube.com/watch?v=NQv6C8G39Kw	147
99	My Story: Fernando and Iwen	MyHeritage – Fernando Hermansson	https://www.youtube.com/watch?v=98-AR0M7fFE	165
100	Using the Autocluster and the Chromosome Browser to Explore Your DNA Matches	MyHeritage – Gal Zruhen	https://www.youtube.com/watch?v=a7aQbfP7lWU	115
101	My Story : Kara Ashby Utah Wedding	MyHeritage – Kara Ashby	https://www.youtube.com/watch?v=Qbr_gg1sDRo	200
102	When Harry Met Dotty – using DNA to break down brick walls	Nick David Barratt	https://www.youtube.com/watch?v=8SdnLuwWpJs	679
103	How to Add a DNA Match to Airtable	Nicole Dyer	https://www.youtube.com/watch?v=oKxizWIOKC0	161
104	How to Download DNA Match Lists with DNAGedcom Client	Nicole Dyer	https://www.youtube.com/watch?v=t9zTWnwl98E	124
105	How to Know if a Matching DNA Segment is Maternal or Paternal	Nicole Dyer	https://www.youtube.com/watch?v=-zd5iat7pmg	161
106	DNA Basics Part I Centimorgans and Family Relationships	Origins International, Inc. dba Origins Genealogy	https://www.youtube.com/watch?v=SI1yUdnSpHA	372
107	DNA Basics Part II Clustering and Connecting Your DNA Matches	Origins International, Inc. dba Origins Genealogy	https://www.youtube.com/watch?v=ECs4a1hwGcs	333
108	DNA Basics Part III Charting Your DNA Matches to Get Answers	Origins International, Inc. dba Origins Genealogy	https://www.youtube.com/watch?v=qzybjN0JBGY	270
109	2. Using Cluster Auto Painter	Patricia Coleman	https://www.youtube.com/watch?v=-nfLixwxKN4	691
110	3. Using Online Irish Records	Patricia Coleman	https://www.youtube.com/watch?v=mZsB0l4z4os	802
111	Exploring Different Types of Clusters	Patricia Coleman	https://www.youtube.com/watch?v=eEZBFPC8aL4	972
112	The Million Mito Project: Growing the Family Tree of Womankind	Paul Maier	https://www.youtube.com/watch?v=cpctoeKb0Kw	541
113	The Tree of Mankind Age Estimates	Paul Maier	https://www.youtube.com/watch?v=jjkL8PWAEwk	1638
114	Y-DNA and Mitochondrial DNA Testing Plans	Paul Woodbury	https://www.youtube.com/watch?v=akymSm0QKaY	168
115	Finding Biological Family	Price Genealogy	https://www.youtube.com/watch?v=4xh-r3hZ6Hw	137
116	What Y-DNA Testing Can Do for You	Richard Hill	https://www.youtube.com/watch?v=a094YhIY4HU	191
117	Extending Time Horizons with DNA	Rob Spencer (live)	https://www.youtube.com/watch?v=wppXD1Zz2sQ	1037 + live viewers
118	DNA for Native American Ancestry by Roberta Estes	Roberta Estes	https://www.youtube.com/watch?v=EbNyXCFfp4M	212
119	1. Associating Autosomal DNA Segments With Ancestors	Roberta Estes (live)	https://www.youtube.com/watch?v=_IHSCkNnX48	~9000: 1019 + 500 live viewers + 7,400+ Facebook
120	1. What Can I Do With Ancestral DNA Segments?	Roberta Estes (live)	https://www.youtube.com/watch?v=Suv3l4iZYAQ	325 plus live viewers
121	Native American DNA – Ancient and Contemporary Maps	Roberta Estes (live)	https://www.youtube.com/watch?v=dFTl2vXUz_0	212 plus 483 live viewers
122	How Can DNA Enhance My Family History Research?	Robin Wirthlin	https://www.youtube.com/watch?v=f3KKW-U2P6w	102
123	How to Analyze a DNA Match	Robin Wirthlin	https://www.youtube.com/watch?v=LTL8NbpROwM	367
124	1. Jewish Ethnicity & DNA: History, Migration, Genetics	Schelly Talalay Dardashti	https://www.youtube.com/watch?v=AIJyphGEZTA	82
125	2. Jewish Ethnicity & DNA: History, Migration, Genetics	Schelly Talalay Dardashti	https://www.youtube.com/watch?v=VM3MCYM0hkI	72
126	Ask us about DNA	Talking Family History (live)	https://www.youtube.com/watch?v=kv_RfR6OPpU	96 plus live viewers
127	1. An Introduction to Visual Phasing	Tanner Blair Tolman	https://www.youtube.com/watch?v=WNhErW5UVKU	183
128	2. An Introduction to Visual Phasing	Tanner Blair Tolman	https://www.youtube.com/watch?v=CRpQ8EVOShI	110
129	Common Problems When Doing Visual Phasing	Tanner Blair Tolman	https://www.youtube.com/watch?v=hzFxtBS5a8Y	68
130	Cross Visual Phasing to Go Back Another Generation	Tanner Blair Tolman	https://www.youtube.com/watch?v=MrrMqhfiwbs	64
131	DNA Basics	Tanner Blair Tolman	https://www.youtube.com/watch?v=OCMUz-kXNZc	155
132	DNA Painter and Visual Phasing	Tanner Blair Tolman	https://www.youtube.com/watch?v=2-eh1L4wOmQ	155
133	DNA Painter Part 2: Chromosome Mapping	Tanner Blair Tolman	https://www.youtube.com/watch?v=zgOJDRG7hJc	172
134	DNA Painter Part 3: The Inferred Segment Generator	Tanner Blair Tolman	https://www.youtube.com/watch?v=96ai8nM4lzo	100
135	DNA Painter Part 4: The Distinct Segment Generator	Tanner Blair Tolman	https://www.youtube.com/watch?v=Pu-WIEQ_8vc	83
136	DNA Painter Part 5: Ancestral Trees	Tanner Blair Tolman	https://www.youtube.com/watch?v=dkYDeFLduKA	73
137	Understanding Your DNA Ethnicity Results	Tanner Blair Tolman	https://www.youtube.com/watch?v=4tAd8jK6Bgw	518
138	What’s New at GEDmatch	Tim Janzen	https://www.youtube.com/watch?v=AjA59BG_cF4	515
139	What Does it Mean to Have Neanderthal Ancestry?	Ugo Perego	https://www.youtube.com/watch?v=DshCKDW07so	190
140	Big Y-700	Your DNA Guide	https://www.youtube.com/watch?v=rIFC69qswiA	143
141	Next Steps with Your DNA	Your DNA Guide – Diahan Southard (live)	https://www.familysearch.org/rootstech/session/next-steps-with-your-dna	Not yet available

Additions:

142 Adventures of an Amateur Genetic Genealogist – Geoff Nelson https://www.familysearch.org/rootstech/session/adventures-of-an-amateur-genetic-genealogist 291 views

____________________________________________________________

Sign Up Now – It’s Free!

If you enjoyed this article, subscribe to DNAeXplain for free, to automatically receive new articles by email each week.

Here’s the link. Just look for the little grey “follow” button on the right-hand side on your computer screen below the black title bar, enter your e-mail address, and you’re good to go!

In case you were wondering, I never have nor ever will share or use your e-mail outside of the intended purpose.

_____________________________________________________________

Follow DNAexplain on Facebook, here or follow me on Twitter, here.

Share the Love!

You’re always welcome to forward articles or links to friends and share on social media.

If you haven’t already subscribed (it’s free,) you can receive an email whenever I publish by clicking the “follow” button on the main blog page, here.

You Can Help Keep This Blog Free

Thank you so much.

DNA Purchases and Free Uploads

FamilyTreeDNA – Y, mitochondrial, and autosomal DNA testing
MyHeritage DNA – Autosomal DNA test
MyHeritage FREE DNA file upload – Upload your DNA file from other vendors free
AncestryDNA – Autosomal DNA test
23andMe Ancestry – Autosomal DNA only, no Health
23andMe Ancestry Plus Health

Genealogy Products and Services

MyHeritage FREE Tree Builder – Genealogy software for your computer
MyHeritage Subscription with Free Trial
Legacy Family Tree Webinars – Genealogy and DNA classes, subscription-based, some free
Legacy Family Tree Software – Genealogy software for your computer
Newspapers.com – Search newspapers for your ancestors
NewspaperArchive – Search different newspapers for your ancestors

My Book

DNA for Native American Genealogy – by Roberta Estes, for those ordering within the United States
DNA for Native American Genealogy – for those ordering outside the US

Genealogy Books

Genealogical.com – Lots of wonderful genealogy research books

Genealogy Research

Legacy Tree Genealogists – Professional genealogy research

Identify Your Ancestors – Follow Nested Ancestral Segments

Posted on January 13, 2022 by Roberta Estes

I don’t think that we actively think about our DNA segments as nested ancestors, like Russian Matryoshka dolls, but they are.

That’s exactly why segment information is critical for genealogists. Every segment, and every portion of a segment, has an incredibly important history. In fact, you could say that the further back in time we can track a segment, the more important it becomes.

Let’s see how to unveil nested segments. I’ll use my chromosome 20 as an example because it’s a smaller chromosome. But first, let’s start with my pedigree chart.

Pedigree

Click images to enlarge.

Before we talk about nested segments that originated with specific ancestors, it’s important to take a look at the closest portion of my maternal pedigree chart. My DNA segments came from and through these people. I’ll be working with the first 5 generations, beginning with my mother as generation #1.

Generation 1 – Parents

In the first generation, we receive a copy of each chromosome from each parent. I have a copy of chromosome 20 from my mother and a copy from my father.

At FamilyTreeDNA, you can see that I match my mother on the entire tested region of each chromosome.

Therefore, the entire length of each of my chromosomes is assigned to both mother and father because I received a copy from each parent. I’m fortunate that my mother’s DNA was able to be tested before she passed away.

We see that each copy of chromosome 20 is a total of 110.20 cM long with 17,695 SNPs.

Of course, my mother inherited the DNA on her chromosome 20 from multiple ancestors whose DNA combined in her parents, a portion of which was inherited by my mother. Mom received one chromosome from each of her parents.

I inherited only one copy of each chromosome (In this case, chromosome 20) from Mom, so the DNA of her two parents was divided and recombined so that I inherited a portion of my maternal chromosome 20 from both of my maternal grandparents.

Identifying Maternal and Paternal Matches

Associating matches with your maternal or paternal side is easy at FamilyTreeDNA because their Family Finder matching does it automatically for you if you upload (or create) a tree and link matches that you can identify to their proper place in your tree.

FamilyTreeDNA then uses that matching segment information from known, identified relatives in your tree to place people who match you both on at least one significant-sized segment in the correct maternal, paternal, (or both) buckets. That’s triangulation, and it happens automatically. All you have to do is click on the Maternal tab to view your triangulated maternal matches. As you can see, I have 1432 matches identified as maternal.

Some other DNA testing companies and third-party tools provide segment information and various types of triangulation information, but they aren’t automated for your entire match list like Family Finder matching at FamilyTreeDNA.

You can read about triangulation in action at MyHeritage, here, 23andMe, here, GEDmatch, here, and DNAPainter, which we’ll use, here. Genetic Affairs AutoKinship tool incorporates triangulation, as does their AutoSegment Triangulation Cluster Tool at GEDmatch. I’ve compiled a reference resource for triangulation, here.

Every DNA testing vendor has people in their database that haven’t tested anyplace else. Your best strategy for finding nested segments and identifying matches to specific ancestors is to test at or transfer your DNA file to every vendor plus GEDmatch where people who test at Ancestry sometimes upload for matching. Ancestry does not provide segment information or a chromosome browser so you’ll sometimes find Ancestry testers have uploaded to GEDmatch, FamilyTreeDNA or MyHeritage where segment information is readily available. I’ve created step-by-step download/upload instructions for all vendors, here.

Generation 2 – Grandparents

In the second generation, meaning that of my grandparents, I inherited portions of my maternal and paternal grandmother’s and grandfather’s chromosomes.

My maternal and paternal chromosomes can be divided into two pieces or groups each, one for each grandparent.

Using DNAPainter, we can see my father’s chromosome 20 on top and my mother’s on the bottom. I have previously identified segments assigned to specific ancestors which are represented by different colors on these chromosomes. You can read more about how to use DNAPainter, here.

We can divide the DNA inherited from each parent into the DNA inherited from each grandparent based on the trees of people we match. If we test cousins from each side, assigning segments maternally or paternally becomes much, much easier. That’s exactly why I’ve tested several.

For the rest of this article, I’m focusing only on my mother’s side because the concepts and methods are the same regardless of whether you’re working on your maternal side or your paternal side.

Using DNAPainter, I expanded my mother’s chromosome 20 in order to see all of the people I’ve painted on my mother’s side.

DNAPainter allows us to paint matching segments from multiple testing vendors and assign them to specific ancestors as we identify common ancestors with our matches.

Based on these matches, I’ve divided these maternal matches into two categories:

Maternal grandmother, meaning my mother’s mother, bracketed in red boxes
Maternal grandfather, meaning my mother’s father, bracketed in black boxes.

The text and arrows in these graphics refer to the colors of the brackets/boxes, and NOT the colors of the segments beside people’s names. For example, if you look at the large black box at far right, you’ll see several people, with their matching segments identified by multiple colored bars. The different colored segments (bars) mean I’ve associated the match with different ancestors in multiple or various levels of generations.

Generation 3 – Great-grandparents

Within those maternal and paternal grandparent segments, more nested information is available.

The black Ferverda grandfather segments are further divided into black, from Hiram Ferverda, and gold from his wife Eva Miller. The same concept applies to the red grandmother segments which are now divided into red representing Nora Kirsch and purple representing Curtis Lore, her husband.

While I have only been able to assign the first four segments (at the top) to one person/ancestor, there’s an entire group of matches who share the grouping of segments at right, in gold, descended through Eva Miller. The Miller line is Brethren and Mennonite with lots of testers, so this is a common pattern in my DNA matches.

Eva Miller, the gold ancestor, has two parents, Margaret Elizabeth Lentz and John David Miller, so her segments would come from those two sides.

Generation 4 and 5 – Fuschia Segment

I was able to track the segment shown in fuschia indicated by the blue arrow to Jacob Lentz and his wife Fredericka Ruhle, German immigrant ancestors. Other people in this same match (triangulation) group descend from Margaret Elizabeth Lentz and John David Miller – but that fuschia match is the one that shows us where that segment originated. This allows us to assign that entire gold/blue bracketed set of segments to a specific ancestor or ancestral couple because they triangulate, meaning they all match me and each other.

Therefore, all of the segments that match with the fuschia segment also track back to Jacob Lentz and Fredericka Ruhle, or to their ancestors. We would need people who descend from Jacob’s parents and/or Fredericka’s parents to determine the origins of that segment.

In other words, we know all of these people share a common source of that segment, even if we don’t yet know exactly who that common ancestor was or when they lived. That’s what the process of tracking back discovers.

To be very clear, I received that segment through Jacob and Fredericka, but some of those matches who I have not been able to associate with either Jacob or Fredericka may descend from either Jacob or Fredericka’s ancestors, not Jacob and Fredericka themselves. Connecting the dots between Jacob/Fredericka and their ancestors may be enlightening as to the even older source of that segment.

Let’s take a look at nested segments on my pedigree chart.

Nested Pedigree

Click to enlarge.

You can see the progression of nesting on my pedigree chart, using the same colors for the brackets/boxes. The black Ferverda box at the grandparent level encompasses the entire paternal side of my mother’s ancestry, and the red includes her mother’s entire side. This is identical to the DNAPainter graphic, just expressed on my pedigree chart instead of my chromosome 20.

Then the black gets broken into smaller nested segments of black, gold and fuschia, while the red gets broken into red and purple.

If I had more matches that could be assigned to ancestors, I would have even more nested levels. Of course, if I was using all of my chromosomes, not just 20, I would be able to go back further as well.

You can see that as we move further back in time, the bracketed areas assigned to each color become smaller and smaller, as do the actual segments as viewed on my DNAPainter chromosomes.

Segments Get Progressively Smaller

You can see in the pedigree chart and segment painting above that the segments we inherit from specific ancestors divide over time. As we move further and further back in our tree, the segments inherited from any specific ancestor get smaller and smaller too.

Dr. Paul Maier in the MyOrigins 3.0 White Paper provides this informative graphic that shows the reduction in segments and the number of ancestors whose DNA we carry reaching back in time.

I refer to this as a porcupine chart.

Eventually, we inherit no segments from red ancestors, and the pieces of DNA that we inherit from the distant blue ancestors become so small and fragmented that they cannot be positively identified as coming from a specific ancestor when compared to and matched with other people. That’s why vendors don’t show small segment matches, although different vendors utilize different segment thresholds.

The debate about how small is too small continues, but the answer is not simply segment size alone. There is no one-size-fits-all answer.

As segments become smaller, the probability, or chances that we match another person by chance (IBC) increases. Proof that someone shares a specific ancestor, especially when dealing with increasingly smaller segments is a function of multiple factors, such as tree completeness for both people, shared matches, parental match confirmation, and more. I wrote about What Constitutes Proof, here.

In the Family Finder Matching White Paper, Dr. Maier provides this chart reflecting IBD (Identical By Descent) and IBC (Identical By Chance) segments and the associated false positivity rate. That means how likely you are to match someone on a segment of that size by chance and NOT because you both share the DNA from a common ancestor.

I wrote Concepts: Identical by Descent, State, Population and Chance to help you better understand how this works.

In the chart below, I’ve combined the generations, relationships, # of ancestors, assuming no duplicates, birth year range based on an approximate 30-year generation, percent of DNA assuming exactly half of each ancestor’s DNA descends in each generation (which we know isn’t exactly accurate), and the average amount of total inherited cMs using that same assumption.

Note that beginning with the 7^th generation, on average, we can expect to inherit less than 1% of the DNA of an ancestor, or approximately 55 total cM which may be inherited in multiple segments.

The amount of actual cMs inherited in each generation can vary widely and explains why, beginning with third cousins, some people won’t share DNA from a common ancestor above the various vendor matching thresholds. Yet, other cousins several generations removed will match. Inheritance is random.

Parallel Inheritance

In order to match someone else descended from that 11^th generation ancestor, BOTH you AND your match will need to have inherited the exact SAME DNA segment, across 11 generations EACH in order to match. This means that 11 transmission events for each person will need to have taken place in parallel with that identical segment being passed from parent to child in each line. For 22 rolls of the genetic dice in a row, the same segment gets selected to be passed on.

You can see why we all need to work to prove that distant matches are valid.

The further back in time we work, the more factors we must take into consideration, and the more confirming proof is needed that a match with another individual is a result of a shared ancestor.

Having said that, shared distant matches ARE the key to breaking through brick-wall ancestors. We just need to be sure we are chasing the real deal and not a red herring.

Exciting Possibilities

The most exciting possibility is that some segments are actually passed intact for several generations, meaning those segments don’t divide into segments too small for matching.

For example, the 22 cM fuschia segment that tracks through generations 4 and 5 to Jacob Lentz and Fredericka Ruhle has been passed either intact or nearly intact to all of those people who stack up and match each other and me on that segment. 22 cM is definitely NOT a small segment and we know that it descended from either Jacob or Fredericka, or perhaps combined segments from each. In any case, if someone from the Lentz line in Germany tested and matched me on that segment (and by inference, the rest of these people too), we would know that segment descended to me from Jacob Lentz – or at least the part we match on if we don’t match on the entire segment.

This is exactly what nested segments are…breadcrumbs to ancestors.

Part of that 22cM segment could be descended from Jacob and part from Fredericka. Then of Jacob’s portion, for example, pieces could descend from both his mother and father.

This is why we track individual segments back in time to discern their origin.

The Promise of the Future

The promise of the future is when a group of other people triangulate on a reasonably sized segment AND know where it came from. When we match that triangulation group, their identified segment may well help break down our brick walls because we match all of them on that same segment.

It is exactly this technique that has helped me identify a Womack segment on my paternal line. I still haven’t identified our common ancestor, but I have confirmed that the Womacks and my Moore/Rice family interacted as neighbors 8 generations ago and likely settled together in Amelia county, migrating from eastern Virginia. In time, perhaps I’ll be able to identify the common Womack ancestor and the link into either my Moore or Rice lines.

I’m hoping for a similar breakthrough on my mother’s side for Philip Jacob Miller’s wife, Magdalena, 7 generations back in my tree. We know Magdalena was Brethren and where they lived when they took up housekeeping. We don’t know who her parents were. However, there are thousands of Miller descendants, so it’s possible that eventually, we will be able to break down that brick wall by using nested segments – ours and people who descend from Magdalena’s siblings, aunts, and uncles.

Whoever those people were, at least some of their descendants will likely match me and/or my cousins on at least one nested Miller segment that will be the same segment identified to their ancestors.

Genealogy is a team sport and solving puzzles using nested segments requires that someone out there is working on identifying triangulated segments that track to their common ancestors – which will be my ancestors too. I have my fingers crossed that someone is working on that triangulation group and I find them or they find me. Of course, I’m working to triangulate and identify my segments to specific ancestors – hoping for a meeting in the middle – that much-desired bridge to the past.

By the time you’ve run out of other records, nested segments are your last chance to identify those elusive ancestors.

Do you have genealogical brick walls that nested segments could solve?

__________________________________________________________

Follow DNAexplain on Facebook, here or follow me on Twitter, here. You can also subscribe to receive emails when I publish articles by clicking the “Follow” button at www.DNAexplain.com.

You’re always welcome to forward articles or links to friends.

You Can Help Out and It’s Free

Thank you so much.

DNA Purchases and Free Uploads

FamilyTreeDNA – Y, mitochondrial, and autosomal DNA testing
MyHeritage DNA – Autosomal DNA test
MyHeritage FREE DNA file upload – Upload your DNA file from other vendors free
AncestryDNA – Autosomal DNA test
23andMe Ancestry – Autosomal DNA only, no Health
23andMe Ancestry Plus Health

Genealogy Products and Services

MyHeritage FREE Tree Builder – Genealogy software for your computer
MyHeritage Subscription with Free Trial
Legacy Family Tree Webinars – Genealogy and DNA classes, subscription-based, some free
Legacy Family Tree Software – Genealogy software for your computer
Charting Companion – Charts and Reports to use with your genealogy software or FamilySearch
RootsMagic Software – Genealogy software for your computer
Newspapers.com – Search newspapers for your ancestors
NewspaperArchive– Search different newspapers for your ancestors

My Book

DNA for Native American Genealogy – by Roberta Estes
DNA for Native American Genealogy – for those ordering outside the US

Genealogy Books

Genealogical.com – Lots of wonderful genealogy research books

Genealogy Research

Legacy Tree Genealogists – Professional genealogy research

FamilyTreeDNA Relaunch – New Feature Overview

Posted on July 1, 2021 by Roberta Estes

The brand-new FamilyTreeDNA website is live!

I’m very pleased with the investment that FamilyTreeDNA has made in their genealogy platform and tools. This isn’t just a redesign, it’s more of a relaunch.

I spoke with Dr. Lior Rauchberger, CEO of myDNA, the parent company of FamilyTreeDNA briefly yesterday. He’s excited too and said:

“The new features and enhancements we are releasing in July are the first round of updates in our exciting product roadmap. FamilyTreeDNA will continue to invest heavily in the advancement of genetic genealogy.”

In other words, this is just the beginning.

In case you were wondering, all those features everyone asked for – Lior listened.

Lior said earlier in 2021 that he was going to do exactly this and he’s proven true to his word, with this release coming just half a year after he took the helm. Obviously, he hit the ground running.

A few months ago, Lior said that his initial FamilyTreeDNA focus was going to be on infrastructure, stability, and focusing on the customer experience. In other words, creating a foundation to build on.

The new features, improvements, and changes are massive and certainly welcome.

I’ll be covering the new features in a series of articles, but in this introductory article, I’m providing an overview so you can use it as a guide to understand and navigate this new release.

Change is Challenging

I need to say something here.

Change is hard. In fact, change is the most difficult challenge for humans. We want improvements, yet we hate it when the furniture is rearranged in our “room.” However, we can’t have one without the other.

So, take a deep breath, and let’s view this as a great new adventure. These changes and tools will provide us with a new foundation and new clues. Think of this as finding long-lost documents in an archive about your ancestors. If someone told me that there is a potential for discovering the surname of one of my elusive female ancestors in an undiscovered chest in a remote library, trust me, I’d be all over it – regardless of where it was or how much effort I had to expend to get there. In this case, I can sit right here in front of my computer and dig for treasure.

We just need to learn to navigate the new landscape in a virtual room. What a gift!

Let’s start with the first thing you’ll see – the main page when you sign in.

Redesigned Main Page

The FamilyTreeDNA main page has changed. To begin with, the text is darker and the font is larger across the entire platform. OMG, thank you!!!

The main page has been flipped left to right, with results on the left now. Projects, surveys, and other information, along with haplogroup badges are on the right. Have you answered any surveys? I don’t think I even noticed them before. (My bad!)

Click any image to enlarge.

The top tabs have changed too. The words myTree and myProjects are now gone, and descriptive tabs have replaced those. The only “my” thing remaining is myOrigins. This change surprises me with myDNA being the owner.

The Results & Tools tab at the top shows the product dropdowns.

The most popular tabs are shown individually under each product, with additional features being grouped under “See More.”

Every product now has a “See More” link where less frequently used widgets will be found, including the raw data downloads. This is the Y DNA “See More” dropdown by way of example.

You can see the green Updated badge on the Family Finder Matches tab. I don’t know if that badge will always appear when customers have new matches, or if it’s signaling that all customers have updated Family Finder Matches now.

We’ll talk about matches in the Family Finder section.

The Family Finder “See More” tab includes the Matrix, ancientOrigins, and the raw data file download.

The mitochondrial DNA section, titled Maternal Line Ancestry, mtDNA Results and Tools includes several widgets grouped under the “See More” tab.

Additional Tests and Tools

The Additional Tests and Tools area includes a link to your Family Tree (please do upload or create one,) Public Haplotrees, and Advanced Matches.

Public haplotrees are free-to-the-public Y and mitochondrial DNA trees that include locations. They are also easily available to FamilyTreeDNA customers here.

Please note that you access both types of trees from one location after clicking the Public Haplotrees page. The tree defaults to Y-DNA, but just click on mtDNA to view mitochondrial haplogroups and locations. Both trees are great resources because they show the location flags of the earliest known ancestors of the testers within each haplogroup.

Advanced Matches used to be available from the menu within each test type, but since advanced matching includes all three types of tests, it’s now located under the Additional Tests and Tools banner. Don’t forget about Advanced Matches – it’s really quite useful to determine if someone matches you on multiple types of tests and/or within specific projects.

Hey, look – I found a tooltip. Just mouse over the text and tabs on various pages to see where tooltips have been added.

Help and Help Center

The new Help Center is debuting in this release. The former Learning Center is transitioning to the Help Center with new, updated content.

Here’s an example of the new easy-to-navigate format. There’s a search function too.

Each individual page, test type, and section on your personal home page has a “Helpful Information” button.

On the main page, at the top right, you’ll see a new Help button.

Did you see that Submit Feedback link?

If you click on the Help Center, you’ll be greeted with context-sensitive help.

I clicked through from the dashboard, so that’s what I’m seeing. However, other available topics are shown at left.

I clicked on both of the links shown and the content has been updated with the new layout and features. No wonder they launched a new Help Center!

Account Settings

Account settings are still found in the same place, and those pages don’t appear to have changed. However, please keep in mind that some settings make take up to 24 hours to take effect.

Family Finder Rematching

Before we look at what has changed on your Family Finder pages, let’s talk about what happened behind the scenes.

FamilyTreeDNA has been offering the Family Finder test for 11 years, one of two very early companies to enter that marketspace. We’ve learned so much since then, not only about DNA itself, but about genetic genealogy, matching, triangulation, population genetics, how to use these tools, and more.

In order to make improvements, FamilyTreeDNA changing the match criteria which necessitated rematching everyone to everyone else.

If you have a technology background of any type, you’ll immediately realize that this is a massive, expensive undertaking requiring vast computational resources. Not only that, but the rematching has to be done in tandem with new kits coming in, coordinated for all customers, and rolled out at once. Based on new matches and features, the user interface needed to be changed too, at the same time.

Sounds like a huge headache, right?

Why would a company ever decide to undertake that, especially when there is no revenue for doing so? The answer is to make functionality and accuracy better for their customers. Think of this as a new bedrock foundation for the future.

FamilyTreeDNA has made computational changes and implemented several features that require rematching:

Improved matching accuracy, in particular for people in highly endogamous populations. People in this category have thousands of matches that occur simply because they share multiple distant ancestors from within the same population. That combination of multiple common ancestors makes their current match relationships appear to be closer in time than they are. In order to change matching algorithms, FamilyTreeDNA had to rewrite their matching software and then run matching all over to enable everyone to receive new, updated match results.
FamilyTreeDNA has removed segments below 6 cM following sustained feedback from the genealogical community.
X matching has changed as well and no longer includes anyone as an X match below 6 cM.
Family Matching, meaning paternal, maternal and both “bucketing” uses triangulation behind the scenes. That code also had to be updated.
Older transfer kits used to receive only closer matches because imputation was not in place when the original transfer/upload took place. All older kits have been imputed now and matched with the entire database, which is part of why you may have more matches.
Relationship range calculations have changed, based on the removal of microsegments, new matching methodology and rematching results.
FamilyTreeDNA moved to hg37, known as Build 37 of the human genome. In layman’s terms, as scientists learn about our DNA, the human map of DNA changes and shifts slightly. The boundary lines change somewhat. Versions are standardized so all researchers can use the same base map or yardstick. In some cases, early genetic genealogy implementers are penalized because they will eventually have to rematch their entire database when they upgrade to a new build version, while vendors who came to the party later won’t have to bear that internal expense.

As you can see, almost every aspect of matching has changed, so everyone was rematched against the entire database. You’ll see new results. Some matches may be gone, especially distant matches or if you’re a member of an endogamous population.

You’ll likely have new matches due to older transfer kits being imputed to full compatibility. Your matches should be more accurate too, which makes everyone happy.

I understand a white paper is being written that will provide more information about the new matching algorithms.

Ok, now let’s check out the new Family Finder Matches page.

Family Finder Matches

FamilyTreeDNA didn’t just rearrange the furniture – there’s a LOT of new content.

First, a note. You’ll see “Family Finder” in some places, and “Autosomal DNA” in other places. That’s one and the same at FamilyTreeDNA. The Family Finder test is their autosomal test, named separately because they also have Y DNA and mitochondrial DNA tests.

When you click on Family Finder matches for the first time, you will assuredly notice one thing and will probably notice a second.

First, you’ll see a little tour that explains how to use the various new tools.

Secondly, you will probably see the “Generating Matches” notice for a few seconds to a few minutes while your match list is generated, especially if the site is busy because lots of people are signing on. I saw this message for maybe a minute or two before my match list filled.

This should be a slight delay, but with so many people signing in right now, my second kit took longer. If you receive a message that says you have no matches, just refresh your page. If you had matches before, you DO have matches now.

While working with the new interface this morning, I’ve found that refreshing the screen is the key to solving issues.

My kits that have a few thousand matches loaded Family Matching (bucketing) immediately, but this (Jewish) kit that has around 30,000 matches received this informational message instead. FamilyTreeDNA has removed the little spinning icon. If you mouse over the information, you’ll see the following message:

This isn’t a time estimate. Everyone receives the same message. The message didn’t even last long enough for me to get a screenshot on the first kit that received this message. The results completed within a minute or so. The Family Matching buckets will load as soon as the parental matching is ready.

These delays should only happen the first time, or if someone has a lot of matches that they haven’t yet viewed. Once you’ve signed in, your matches are cached, a technique that improves performance, so the loading should be speedy, or at least speedier, during the second and subsequent visits.

Of course, right now, all customers have an updated match list, so there’s something new for everyone.

Getting Help

Want to see that tutorial again?

Click on that little Help box in the upper right-hand corner. You can view the Tutorial, look at Quick References that explain what’s on this page, visit the Help Center or Submit Feedback.

Two Family Finder Matches Views – Detail and Table

The first thing you’ll notice is that there are two views – Detail View and Table View. The default is Detail View.

Take a minute to get used to the new page.

Detail View – Filter Matches by Match Type

I was pleased to see new filter buttons, located in several places on the page.

The Matches filter at left allows you to display only specific relationship levels, including X-Matches which can be important in narrowing matches to a specific subset of ancestors.

You can display only matches that fall within certain relationship ranges. Note the new “Remote Relative” that was previously called speculative.

Parental Matching and Filtering by Test Type or Trees

All of your matches are displayed by default, of course, but you can click on Paternal, Maternal or Both, like before to view only matches in those buckets. In order for the Family Matching bucketing feature to be enabled, you must attach known relatives’ DNA matches to their proper place in your tree.

Please note that I needed to refresh the page a couple of times to get my parental matches to load the first time. I refreshed a couple of times to be sure that all of my bucketed matches loaded. This should be a first-time loading blip.

There’s a new filter button to the right of the bucketing tabs.

You can now filter by who has trees and who has taken which kinds of tests.

You can apply multiple filters at the same time to further narrow your matches.

Important – Clearing Filters

It’s easy to forget you have a filter enabled. This section is important, in part because Clear Filter is difficult to find.

The clear filter button does NOT appear until you’ve selected a filter. However, after applying that filter, to clear it and RESET THE MATCHES to unfiltered, you need to click on the “Clear Filter” button which is located at the top of the filter selections, and then click “Apply” at the bottom of the menu. I looked for “clear filter” forever before finding it here.

You’re welcome😊

Enhanced Search

Thank goodness, the search functionality has been enhanced and simplified too. Full name search works, both here and on the Y DNA search page.

If you type in a surname without selecting any search filters, you’ll receive a list of anyone with that word in their name, or in their list of ancestral surnames. This does NOT include surnames in their tree if they have not added those surnames to their list of ancestral surnames.

Notice that your number of total matches and bucketed people will change based on the results of this search and any filters you have applied.

I entered Estes in the search box, with no filters. You can see that I have a total of 46 matches that contain Estes in one way or another, and how they are bucketed.

Estes is my birth surname. I noticed that three people with Estes in their information are bucketed maternally. This is the perfect example of why you can’t assume a genetic relationship based on only a surname. Those three people’s DNA matches me on my mother’s side. And yes, I confirmed that they matched my mother too on that same segment or segments.

Search Filters

You can also filter by haplogroup. This is very specific. If you select mitochondrial haplogroup J, you will only receive Family Finder matches that have haplogroup J, NOT J1 or J1c or J plus anything.

If you’re looking for your own haplogroup, you’ll need to type your full haplogroup in the search box and select mtDNA Haplogroup in the search filter dropdown.

Resetting Search Results

To dismiss search results, click on the little X. It’s easy to forget that you have initiated a search, so I need to remember to dismiss searches after I’m finished with each one.

Export Matches

The “Export CSV” button either downloads your entire match list, or the list of filtered matches currently selected. This is not your segment information, but a list of matches and related information such as which side they are bucketed on, if any, notes you’ve made, and more.

Your segment information is available for download on the chromosome browser.

Sort By

The Sort By button facilitates sorting your matches versus filtering your matches. Filters ONLY display the items requested, while sorts display all of the items requested, sorting them in a particular manner.

You can sort in any number of ways. The default is Relationship Range followed by Shared DNA.

Your Matches – Detail View

A lot has changed, but after you get used to the new interface, it makes more sense and there are a lot more options available which means increased flexibility. Remember, you can click to enlarge any of these images.

To begin with, you can see the haplogroups of your matches if they have taken a Y or mitochondrial DNA test. If you match someone, you’ll see a little check in the haplogroup box. I’m not clear whether this means you’re a haplogroup match or that person is on your match list.

To select people to compare in the chromosome browser, you simply check the little square box to the left of their photo and the chromosome browser box pops up at the bottom of the page. We’ll review the chromosome browser in a minute.

The new Relationship Range prediction is displayed, based on new calculations with segments below 6 cM removed. The linked relationship is displayed below the range.

A linked relationship occurs when you link that person to their proper place in your tree. If you have no linked relationship, you’ll see a link to “assign relationship” which takes you to your tree to link this person if you know how you are related.

The segments below 6 cM are gone from the Shared DNA total and X matches are only shown if they are 6 cM or above.

In Common With and Not In Common With

In Common With and Not In Common With is the little two-person icon at the right.

Just click on the little person icon, then select “In Common With” to view your shared matches between you, that match, and other people. The person you are viewing matches in common with is highlighted at the top of the page, with your common matches below.

You can stack filters now. In this example, I selected my cousin, Don, to see our common matches. I added the search filter of the surname Ferverda, my mother’s maiden name. She is deceased and I manage her kit. You can see that my cousin Don and I have 5 total common matches – four maternal and one both, meaning one person matches me on both my maternal and paternal lines.

It’s great news that now Cousin Don pops up in the chromosome browser box at the bottom, enabling easy confusion-free chromosome segment comparisons directly from the In Common With match page. I love this!!!.

All I have to do now is click on other people and then on Compare Relationship which pushes these matches through to the chromosome browser. This is SOOOO convenient.

You’ll see a new tree icon at right on each match. A dark tree means there’s content and a light tree means this person does not have a tree. Remember, you can filter by trees with content using the filter button beside “Both”.

Your notes are shown at far right. Any person with a note is dark grey and no note is white.

If you’re looking for the email contact information, click on your match’s name to view their placard which also includes more detailed ancestral surname information.

Family Finder – Table View

The table view is very similar to the Detail View. The layout is a bit different with more matches visible in the same space.

This view has lots of tooltips on the column heading bar! Tooltips are great for everyone, but especially for people just beginning to find their way in the genetic genealogy world.

I’ll have to experiment a bit to figure out which view I prefer. I’d like to be able to set my own default for whichever view I want as my default. In fact, I think I’ll submit that in the “Submit Feedback” link. For every suggestion, I’m going to find something really positive to say. This was an immense overhaul.

Chromosome Browser

Let’s look at the chromosome Browser.

You can arrive at the Chromosome Browser by selecting people on your match page, or by selecting the Chromosome Browser under the Results and Tools link.

Everything is pretty much the same on the chromosome browser, except the default view is now 6 cM and the smaller segments are gone. You can also choose to view only segments above 10 cM.

If you have people selected in the chromosome browser and click on Download Segments in the upper right-hand corner, it downloads the segments of only the people currently selected.

You can “Clear All” and then click on Download All Segments which downloads your entire segment file. To download all segments, you need to have no people selected for comparison.

The contents of this file are greatly reduced as it now contains only the segments 6 cM and above.

Family Tree

No, the family tree has not changed, and yes, it needs to, desperately. Trust me, the management team is aware and I suspect one of the improvements, hopefully sooner than later, will be an improved tree experience.

Y DNA

The Y DNA page has received an update too, adding both a Detail View and a Table View with the same basic functionality as the Family Finder matching above. If you are reading this article for Y DNA only, please read the Family Finder section to understand the new layout and features.

Like previously, the match comparison begins at the 111 marker level.

However, there’s a BIG difference. If there are no matches at this level, YOU NEED TO CLICK THE NEXT TAB. You can easily see that this person has matches at the 67 level and below, but the system no longer “counts down” through the various levels until it either finds a level with a match or reaches 12 markers.

If you’re used to the old interface, it’s easy to think you’re at the final destination of 12 markers with no matches when you’re still at 111.

Y DNA Detail View

The Y-DNA Detail and Table views features are the same as Family Finder and are described in that section.

The new format is quite different. One improvement is that the Paternal Country of Origin is now displayed, along with a flag. How cool is that!

The Paternal Earliest Known Ancestor and Match Date are at far right. Note that match dates have been reset to the rerun date. At this point, FamilyTreeDNA is evaluating the possibility of restoring the original match date. Regardless, you’ll be able to filter for match dates when new matches arrive.

Please check to be sure you have your Country of Origin, Earliest Known Ancestor, and mapped location completed and up to date.

Earliest Known Ancestor

If you haven’t completed your Earliest Known Ancestor (EKA) information, now’s the perfect time. It’s easy, so let’s do it before you forget.

Click on the Account Settings gear beneath your name in the right-hand upper corner. Click on Genealogy, then on Earliest Known Ancestors and complete the information in the red boxes.

Direct paternal line means your father’s father’s father’s line – as far up through all fathers as you can reach. This is your Y DNA lineage, but females should complete this information on general principles.
Direct maternal line means your mother’s mother’s mother’s line – as far up through all mothers that you can reach. This is your mitochondrial DNA lineage, so relevant for both males and females.

Completing all of the information, including the location, will help you and your matches as well when using the Matches Map.

Be sure to click Save when you’re finished.

Y DNA Filters

Y DNA has more filter options than autosomal.

The Y DNA filter, located to the right of the 12 Markers tab allows testers to filter by:

Genetic distance, meaning how many mutations difference between you and your matches
Groups meaning group projects that the tester has joined
Tree status
Match date
Level of test taken

If none of your matches have taken the 111 marker test or you don’t match anyone at that level, that test won’t show up on your list.

Y DNA Table View

As with Family Finder, the Table View is more condensed and additional features are available on the right side of each match. For details, please review the Family Finder section.

If you’re looking for the old Y DNA TiP report, it’s now at the far right of each match.

The actual calculator hasn’t changed yet. I know people were hoping for the new Y DNA aging in this release, but that’s yet to follow.

Other Pages

Other pages like the Big Y and Mitochondrial DNA did not receive new features or functionality in this release, but do sport new user-friendly tooltips.

I lost track, but I counted over 100 tooltips added across the platform, and this is just the beginning.

There are probably more new features and functionality that I haven’t stumbled across just yet.

And yes, we are going to find a few bugs. That’s inevitable with something this large. Please report anything you find to FamilyTreeDNA.

Oh wait – I almost forgot…

New Videos

I understand that there are in the ballpark of 50 new videos that are being added to the new Help Center, either today or very shortly.

When I find out more, I’ll write an article about what videos are available and where to find them. People learn in various ways. Videos are often requested and will be a popular addition. I considered making videos, but that’s almost impossible for anyone besides the vendor because the names on screens either need to be “fake” or the screen needs to be blurred.

So hurray – very glad to hear these are imminent!

Stay Tuned

Stay tuned for new developments. As Lior said, FamilyTreeDNA is investing heavily in genetic genealogy and there’s more to come.

My Mom used to say that the “proof is in the pudding.” I’d say the myDNA/FamilyTreeDNA leadership team has passed this initial test with flying colors.

Of course, there’s more to do, but I’m definitely grateful for this lovely pudding. Thank you – thank you!

I can’t wait to get started and see what new gems await.

Take a Look!

Do you have more matches?

Are your matches more accurate?

How about predicted relationships?

How has this new release affected you?

What do you like the best?

_____________________________________________________________

Disclosure

Thank you so much.

DNA Purchases and Free Transfers

FamilyTreeDNA – Y, mitochondrial and autosomal DNA testing
MyHeritage DNA – Autosomal DNA test
MyHeritage FREE DNA file upload – Transfer your results from other vendors free
AncestryDNA – Autosomal DNA test
23andMe Ancestry – Autosomal DNA only, no Health
23andMe Ancestry Plus Health

Genealogy Products and Services

MyHeritage FREE Tree Builder – Genealogy software for your computer
MyHeritage Subscription with Free Trial
Legacy Family Tree Webinars – Genealogy and DNA classes, subscription-based, some free
Legacy Family Tree Software – Genealogy software for your computer
Charting Companion – Charts and Reports to use with your genealogy software or FamilySearch
RootsMagic Software – Genealogy software for your computer
Newspapers.com – Search newspapers for your ancestors

Books

Genealogical.com – Lots of wonderful genealogy research books

Genealogy Research

Legacy Tree Genealogists – Professional genealogy research

RootsTech Connect 2021: Comprehensive DNA Session List

Posted on March 2, 2021 by Roberta Estes

I wondered exactly how many DNA sessions were at RootsTech this year and which ones are the most popular.

Unfortunately, we couldn’t easily view a list of all the sessions, so I made my own. I wanted to be sure to include every session, including Tips and Tricks and vendor sessions that might only be available in their booths. I sifted through every menu and group and just kept finding more and more buried DNA treasures in different places.

I’m sharing this treasure chest with you below. And by the way, this took an entire day, because I’ve listed the YouTube direct link AND how many views each session had amassed today.

Two things first.

RootsTech Sessions

As you know, RootsTech was shooting for TED talk format this year. Roughly 20-minute sessions. When everything was said and done, there were five categories of sessions:

Curated sessions are approximately 20-minute style presentations curated by RootsTech meaning that speakers had to submit. People whose sessions were accepted were encouraged to break longer sessions into a series of two or three 20-minute sessions.
Vendor booth videos could be loaded to their virtual boots without being curated by RootsTech, but curated videos by their employees could also be loaded in the vendor booths.
DNA Learning Center sessions were by invitation and provided by volunteers. They last generally between 10-20 minutes.
Tips and Tricks are also produced by volunteers and last from 1 to 15 minutes. They can be sponsored by a company and in some cases, smaller vendors and service providers utilized these to draw attention to their products and services.
1-hour sessions tend to be advanced and not topics could be easily broken apart into a series.

Look at this amazing list of 129 DNA or DNA-related sessions that you can watch for free for the next year. Be sure to bookmark this article so you can refer back easily.

Please note that I started compiling this list for myself and I’ve shortened some of the session names. Then I realized that if I needed this, so do you.

Top 10 Most-Viewed Sessions

I didn’t know whether I should list these sessions by speaker name, or by the most views, so I’m doing a bit of both.

Drum roll please…

The top 10 most viewed sessions as of today are:

Speaker/Vendor	Session Title	Type	Link	Views
Libby Copeland	How Home DNA Testing Has Redefined Family History	Curated Session	https://youtu.be/LsOEuvEcI4A	13,554
Nicole Dyer	Organize Your DNA Matches in a Diagram	Tips and Tricks	https://youtu.be/UugdM8ATTVo	6175
Roberta Estes	DNA Triangulation: What, Why, and How	1 hour	https://youtu.be/nIb1zpNQspY	6106
Tim Janzen	Tracing Ancestral Lines in the 1700s Using DNA Part 1	Curated Session	https://youtu.be/bB7VJeCR6Bs	5866
Amy Williams	Ancestor Reconstruction: Why, How, Tools	Curated Session	https://youtu.be/0D6lAIyY_Nk	5637
Drew Smith	Before You Test Basics Part 1	Curated Session	https://youtu.be/wKhMRLpefDI	5079
Nicole Dyer	How to Interpret a DNA Cluster Chart	Tips and Tricks	https://youtu.be/FI4DaWGX8bQ	4982
Nicole Dyer	How to Evaluate a ThruLines Hypothesis	Tips and Tricks	https://youtu.be/ao2K6wBip7w	4823
Kimberly Brown	Why Don’t I Match my Match’s Matches	DNA Learning Center	https://youtu.be/A8k31nRzKpc	4593
Rhett Dabling, Diahan Southard	Understanding DNA Ethnicity Results	Curated Session	https://youtu.be/oEt7iQBPfyM	4287

Libby Copeland must be absolutely thrilled. I noticed that her session was featured over the weekend in a highly prominent location on the RootsTech website.

Sessions by Speaker

The list below includes the English language sessions by speaker. I apologize for not being able to discern which non-English sessions are about DNA.

Don’t let a smaller number of views discourage you. I’ve watched a few of these already and they are great. I suspect that sessions by more widely-known speakers or ones whose sessions were listed in the prime-real estate areas have more views, but what you need might be waiting just for you in another session. You don’t have to pick and choose and they are all here for you in one place.

Speaker/Vendor	Session Title	Type	Link	Views
Alison Wilde	SCREEN Method: A DNA Match Note System that Really Helps	DNA Learning Center	https://youtu.be/WaNnh_v1rwE	791
Amber Brown	Genealogist-on-Demand: The Help You Need on a Budget You Can Afford	Curated Session	https://youtu.be/9KjlD6GxiYs	256
Ammon Knaupp	Pattern of Genetic Inheritance	DNA Learning Center	https://youtu.be/Opr7-uUad3o	824
Amy Williams	Ancestor Reconstruction: Why, How, Tools	Curated Session	https://youtu.be/0D6lAIyY_Nk	5637
Amy Williams	Reconstructing Parent DNA and Analyzing Relatives at HAPI-DNA, Part 1	Curated Session	https://youtu.be/MZ9L6uPkKbo	1021
Amy Williams	Reconstructing Parent DNA and Analyzing Relatives at HAPI-DNA, Part 2	Curated Session	https://youtu.be/jZBVVvJmnaU	536
Ancestry	DNA Matches	Curated Session	https://youtu.be/uk8EKXLQYzs	743
Ancestry	ThruLines	Curated Session	https://youtu.be/RAwimOgNgUE	1240
Ancestry	Ancestry DNA Communities: Bringing New Discoveries to Your Family History Research	Curated Session	https://youtu.be/depeGW7QUzU	422
Andre Kearns	Helping African Americans Trace Slaveholding Ancestors Using DNA	Curated Session	https://youtu.be/mlnSU5UM-nQ	2211
Barb Groth	I Found You: Methods for Finding Hidden Family Members	Curated Session	https://youtu.be/J93hxOe_KC8	1285
Beth Taylor	DNA and Genealogy Basics	DNA Learning Center	https://youtu.be/-LKgkIqFhL4	967
Beth Taylor	What Do I Do With Cousin Matches?	DNA Learning Center	https://youtu.be/LyGT9B6Mh00	1349
Beth Taylor	Using DNA to Find Unknown Relatives	DNA Learning Center	https://youtu.be/WGJ8IfuTETY	2166
David Ouimette	I Am Adopted – How Do I Use DNA to Find My Parents?	Curated Session	https://youtu.be/-jpKgKMLg_M	365
Debbie Kennett	Secrets and Surprises: Uncovering Family History Mysteries through DNA	Curated Session	https://youtu.be/nDnrIWKmIuA	2899
Debbie Kennett	Genetic Genealogy Meets CSI	Curated Session	https://youtu.be/sc-Y-RtpEAw	589
Diahan Southard	What is a Centimorgan	Tips and Tricks	https://youtu.be/uQcfhPU5QhI	2923
Diahan Southard	Using the Shared cM Project	DNA Learning Center	https://youtu.be/b66zfgnzL0U	3172
Diahan Southard	Understanding Ethnicity Results	DNA Learning Center	https://youtu.be/8nCMrf-yJq0	1587
Diahan Southard	Problems with Shared Centimorgans	DNA Learning Center	https://youtu.be/k7j-1yWwGcY	2494
Diahan Southard	4 Next Steps for Your DNA	Curated Session	https://youtu.be/poRyCaTXvNg	3378
Diahan Southard	Your DNA Questions Answered	Curated Session	https://youtu.be/uUlZh_VYt7k	3454
Diahan Southard	You Can Do the DNA – We Can Help	Tips and Tricks	https://youtu.be/V5VwNzcVGNM	763
Diahan Southard	What is a DNA Match?	Tips and Tricks	https://youtu.be/Yt_GeffWhC0	314
Diahan Southard	Diahan’s Tips for DNA Matches	Tips and Tricks	https://youtu.be/WokgGVRjwvk	3348
Diahan Southard	Diahan’s Tips for Y DNA	Tips and Tricks	https://youtu.be/QyH69tk-Yiw	620
Diahan Southard	Diahan’s Tips about mtDNA testing	Tips and Tricks	https://youtu.be/6d-FNY1gcmw	2142
Diahan Southard	Diahan’s Tips about Ethnicity Results	Tips and Tricks	https://youtu.be/nZFj3zCucXA	1597
Diahan Southard	Diahan’s Tips about Which DNA Test to Take	Tips and Tricks	https://youtu.be/t–4R8H8q0U	2043
Diahan Southard	Diahan’s Tips about When Your Matches Don’s Respond	Tips and Tricks	https://youtu.be/LgHtM3nS60o	3009
Diahan Southard	Three Next Steps: Using Known Matches	Tips and Tricks	https://youtu.be/z1SVq8ME42A	118
Diahan Southard	Three Next Steps: MRCA/DNA and the Paper Trail	Tips and Tricks	https://youtu.be/JB0cVyk-Y4Q	80
Diahan Southard	Three Next Steps: Start With Known Matches	Tips and Tricks	https://youtu.be/BSNhaQCNtAo	68
Diahan Southard	Three Next Steps: Additional Tools	Tips and Tricks	https://youtu.be/PqNPBLQSBGY	140
Diahan Southard	Three Next Steps: Ancestry ThruLines	Tips and Tricks	https://youtu.be/KWayyAO8p_c	335
Diahan Southard	Three Next Steps: MyHeritage Theory of Relativity	Tips and Tricks	https://youtu.be/Et2TVholbAE	80
Diahan Southard	Three Next Steps: Who to Test	Tips and Tricks	https://youtu.be/GyWOO1XDh6M	111
Diahan Southard	Three Next Steps: Genetics vs Genealogy	Tips and Tricks	https://youtu.be/Vf0DC5eW_vA	294
Diahan Southard	Three Next Steps: Centimorgan Definition	Tips and Tricks	https://youtu.be/nQF935V08AQ	201
Diahan Southard	Three Next Steps: Shared Matches	Tips and Tricks	https://youtu.be/AYcR_pB6xgA	233
Diahan Southard	Three Next Steps: Case Study – Finding an MRCA	Tips and Tricks	https://youtu.be/YnlA9goeF7w	256
Diahan Southard	Three Next Steps: Why Use DNA	Tips and Tricks	https://youtu.be/v-o4nhPn8ww	266
Diahan Southard	Three Next Steps: Finding Known Matches	Tips and Tricks	https://youtu.be/n3N9CnAPr18	688
Diana Elder	Using DNA Ethnicity Estimates in Your Research	Tips and Tricks	https://youtu.be/aJgUK3TJqtA	1659
Diane Elder	Using DNA in a Client Research Project to Solve a Family Mystery	1 hour	https://youtu.be/ysGYV6SXxR8	1261
Donna Rutherford	DNA and the Settlers of Taranaki, New Zealand	Curated Session	https://youtu.be/HQxFwie4774	214
Drew Smith	Before You Test Basics Part 1	Curated Session	https://youtu.be/wKhMRLpefDI	5079
Drew Smith	Before You Test Basics Part 2	Curated Session	https://youtu.be/Dopx04UHDpo	2769
Drew Smith	Before You Test Basics Part 3	Curated Session	https://youtu.be/XRd2IdtA-Ng	2360
Elena Fowler	Whakawhanaungatanga Using DNA – It’s Complicated (Māori heritage)	Curated Session	https://youtu.be/6XTPMzVnUd8	470
Elena Fowler	Whakawhanaungatanga Using DNA – FamilyTreeDNA (Māori heritage)	Curated Session	https://youtu.be/fM85tt5ad3A	269
Elena Fowler	Whakawhanaungatanga Using DNA – Ancestry (Māori heritage)	Curated Session	https://youtu.be/-byO6FOfaH0	191
Esmee Mortimer-Taylor	Living DNA: Anathea Ring – Her Story	Tips and Tricks	https://youtu.be/MTE4UFKyLRs	189
Esmee Mortimer-Taylor	Living DNA: Coretta Scott King Academy – DNA Results Reveal	Tips and Tricks	https://youtu.be/CK1EYcuhqmc	82
Fonte Felipe	Ethnic Filters and DNA Matches: The Way Forward to Finding Your Lineage	Curated Session	https://youtu.be/mt2Rv2lpj7o	553
FTDNA – Janine Cloud	Big Y: What is it? Why Do I Need It?	Curated Session	https://youtu.be/jiDcjWk4cVI	2013
FTDNA – Sherman McRae	Using DNA to Find Ancestors Lost in Slavery	Curated Session	https://youtu.be/i3VKwpmttBI	738
Jerome Spears	Elusive Distant African Cousins: Using DNA, They Can Be Found	Curated Session	https://youtu.be/fAr-Z78f_SM	335
Karen Stanbary	Ruling Out Instead of Ruling In: DNA and the GPS in Action	1 hour	https://youtu.be/-WLhIHlSyLE	548
Katherine Borges	DNA and Lineage Societies	Tips and Tricks	https://youtu.be/TBYGyLHHAOI	451
Kimberly Brown	Why Don’t I Match my Match’s Matches	DNA Learning Center	https://youtu.be/A8k31nRzKpc	4593
Kitty Munson Cooper	Basics of Unknown Parentage Research Using DNA Part 1	Curated Session	https://youtu.be/2f3c7fJ74Ig	2931
Kitty Munson Cooper	Basics of Unknown Parentage Research Using DNA Part 2	Curated Session	https://youtu.be/G7h-LJPCywA	1222
Lauren Vasylyev	Finding Cousins through DNA	Curated Session	https://youtu.be/UN7WocQzq78	1979
Lauren Vasylyev, Camille Andrus	Finding Ancestors Through DNA	Curated Session	https://youtu.be/4rbYrRICzrQ	3919
Leah Larkin	Untangling Endogamy Part 1	Curated Session	https://youtu.be/0jtVghokdbg	2291
Leah Larkin	Untangling Endogamy Part 2	Curated Session	https://youtu.be/-rXLIZ0Ol-A	1441
Liba Casson-Budell	Shining a Light on Jewish Genealogy	Curated Session	https://youtu.be/pHyVz94024Y	162
Libby Copeland	How Home DNA Testing Has Redefined Family History	Curated Session	https://youtu.be/LsOEuvEcI4A	13,554
Linda Farrell	Jumpstart your South African research	Curated Session	https://youtu.be/So7y9_PBRKc	339
Living DNA	How to do a Living DNA Swab	Tips and Tricks	https://youtu.be/QkbxhqCw7Mo	50
Lynn Broderick	Ethical Considerations Using DNA Results	Curated Session	https://youtu.be/WMcRiDxPy2k	249
Mags Gaulden	Importance and Benefits of Y DNA Testing	DNA Learning Center	https://youtu.be/MVIiv0H7imI	1032
Maurice Gleeson	Using Y -DNA to Research Your Surname	Curated Session	https://youtu.be/Ir4NeFH_aJs	1140
Melanie McComb	Georgetown Memory Project: Preserving the Stories of the GU272	Curated Session	https://youtu.be/Fv0gHzTHwPk	320
Michael Kennedy	What Can You Do with Your DNA Test?	DNA Learning Center	https://youtu.be/rKOjvkqYBAM	616
Michelle Leonard	Understanding X-Chromosome DNA Matching	Curated Session	https://youtu.be/n784kt-Xnqg	775
MyHeritage	How to Analyze DNA Matches on MH	Curated Session	https://youtu.be/gHRvyQYrNds	1192
MyHeritage	DNA – an Overview	Curated Session	https://youtu.be/AIRGjEOg_xo	389
MyHeritage	Advanced DNA Tools	Curated Session	https://youtu.be/xfZUAjI5G_I	762
MyHeritage	How to Get Started with Your DNA Matches	Tips and Tricks	https://youtu.be/rU_dq1vt6z4	1901
MyHeritage	How to Filter and Sort Your DNA Matches	Tips and Tricks	https://youtu.be/aJ7dRwMTt90	1008
Nicole Dyer	How to Interpret a DNA Cluster Chart	Tips and Tricks	https://youtu.be/FI4DaWGX8bQ	4982
Nicole Dyer	How to Evaluate a ThruLines Hypothesis	Tips and Tricks	https://youtu.be/ao2K6wBip7w	4823
Nicole Dyer	Organize Your DNA Matches in a Diagram	Tips and Tricks	https://youtu.be/UugdM8ATTVo	6175
Nicole Dyer	Research in the Southern States	Curated Session	https://youtu.be/Pouw_yPrVSg	871
Olivia Fordiani	Understanding Basic Genetic Genealogy	DNA Learning Center	https://youtu.be/-kbGOFiwH2s	810
Pamela Bailey	Information Wanted: Reuniting an American Family Separated by Slavery	Tips and Tricks	https://youtu.be/DPCJ4K8_PZw	105
Patricia Coleman	Getting Started with DNA Painter	DNA Learning Center	https://youtu.be/Yh_Bzj6Atck	1775
Patricia Coleman	Adding MyHeritage Data to DNA Painter	DNA Learning Center	https://youtu.be/rP9yoCGjkLc	458
Patricia Coleman	Adding 23andMe Data to DNA Painter	DNA Learning Center	https://youtu.be/pJBAwe6s0z0	365
Penny Walters	Mixing DNA with Paper Trail	DNA Learning Center	https://youtu.be/PP4SjdKuiLQ	2693
Penny Walters	Collaborating with DNA Matches When You’re Adopted	DNA Learning Center	https://youtu.be/9ioeCS22HlQ	1222
Penny Walters	Differences in Ethnicity Between My 6 Children	DNA Learning Center	https://youtu.be/RsrXLcXRNfs	400
Penny Walters	Differences in DNA Results Between My 6 Children	DNA Learning Center	https://youtu.be/drnzW3FXScI	815
Penny Walters	Ethical Dilemmas in DNA Testing	DNA Learning Center	https://youtu.be/PRPoc0nB4Cs	437
Penny Walters	Adoption – Background Context	Curated Session	https://youtu.be/qC1_Ln8WCNg	1054
Penny Walters	Adoption – Utilizing DNA Testing to Construct a Bio Family Tree	Curated Session	https://youtu.be/zwJ5QofaGTE	941
Penny Walters	Adoption – Ethical Dilemmas and Varied Consequences of Looking for Bio Family	Curated Session	https://youtu.be/ZLcHHTSfCIE	576
Penny Walters	I Want My Mummy: Ancient and Modern Egypt	Curated Session	https://youtu.be/_HRO50RtzFk	311
Rebecca Whitman Koford	BCG: Brief Step-by-Step Tour of the BCG Website	Tips and Tricks	https://youtu.be/YpV9bKG6sXk	317
Renate Yarborough Sanders	DNA Understanding the Basics	DNA Learning Center	https://youtu.be/bX_flUQkBEA	2713
Renate Yarborough Sanders	To Test or Not to Test	DNA Learning Center	https://youtu.be/58-qzvN4InU	1048
Rhett Dabling	Finding Ancestral Homelands Through DNA	Curated Session	https://youtu.be/k9zixg4uL1I	505
Rhett Dabling, Diahan Southard	Understanding DNA Ethnicity Results	Curated Session	https://youtu.be/oEt7iQBPfyM	4287
Richard Price	Finding Biological Family	Tips and Tricks	https://youtu.be/L9C-SGVRZLM	101
Robert Kehrer	Will They Share My DNA (Consent, policies, etc.)	DNA Learning Center	https://youtu.be/SUo-jpTaR1M	480
Robert Kehrer	What is a Centimorgan?	DNA Learning Center	https://youtu.be/dopniLw8Fho	1194
Roberta Estes	DNA Triangulation: What, Why and How	1 hour	https://youtu.be/nIb1zpNQspY	6106
Roberta Estes	Mother’s Ancestors	DNA Learning Center	https://youtu.be/uUh6WrVjUdQ	3074
Robin Olsen Wirthlin	How Can DNA Help Me Find My Ancestors?	Curated Session	https://youtu.be/ZINiyKsw0io	1331
Robin Olsen Wirthlin	DNA Tools Bell Curve	Tips and Tricks	https://youtu.be/SYorGgzY8VQ	1207
Robin Olsen Wirthlin	DNA Process Trees Guide You in Using DNA in Family History Research	Tips and Tricks	https://youtu.be/vMOQA3dAm4k	1708
Shannon Combs-Bennett	DNA Basics Made Easy	DNA Learning Center	https://youtu.be/4JcLJ66b0l4	1560
Shannon Combs-Bennett	DNA Brick Walls	DNA Learning Center	https://youtu.be/vtFkT_PSHV0	450
Shannon Combs-Bennett	Basics of Genetic Genealogy Part 1	Curated Session	https://youtu.be/xEMbirtlBZo	2263
Shannon Combs-Bennett	Basics of Genetic Genealogy Part 2	Curated Session	https://youtu.be/zWMPja1haHg	1424
Steven Micheleti, Joanna Mountain	Genetic Consequences of the Transatlantic Slave Trade Part 1	Curated Session	https://youtu.be/xP90WuJpD9Q	2284
Steven Micheleti, Joanna Mountain	Genetic Consequences of the Transatlantic Slave Trade Part 2	Curated Session	https://youtu.be/McMNDs5sDaY	742
Thom Reed	How Can Connecting with Ancestors Complete Us?	Curated Session	https://youtu.be/gCxr6W-tkoY	392
Tim Janzen	Tracing Ancestral Lines in the 1700s Using DNA Part 1	Curated Session	https://youtu.be/bB7VJeCR6Bs	5866
Tim Janzen	Tracing Ancestral Lines in the 1700s Using DNA Part 2	Curated Session	https://youtu.be/scOtMyFULGI	3008
Ugo Perego	Strengths and Limitations of Genetic Testing for Family History	DNA Learning Center	https://youtu.be/XkBK1y-LVaE	480
Ugo Perego	A Personal Genetic Journey	DNA Learning Center	https://youtu.be/Lv9CSU50xCc	844
Ugo Perego	Discovering Native American Ancestry through DNA	Curated Session	https://youtu.be/L1cs748ctx0	884
Ugo Perego	Mitochondrial DNA: Our Maternally-Inherited Family History	Curated Session	https://youtu.be/Z5bPTUzewKU	599
Vivs Laliberte	Introduction to Y DNA	DNA Learning Center	https://youtu.be/rURyECV5j6U	752
Yetunde Moronke Abiola	6% Nigerian: Tracing my Missing Nigerian Ancestor	Curated Session	https://youtu.be/YNQt60xKgyg	494

_____________________________________________________________

Disclosure

Thank you so much.

DNA Purchases and Free Transfers

FamilyTreeDNA – Y, mitochondrial and autosomal DNA testing
MyHeritage DNA –Autosomal DNA test
MyHeritage FREE DNA file upload – Transfer your results from other vendors free
AncestryDNA – Autosomal DNA test
23andMe Ancestry – Autosomal DNA only, no Health
23andMe Ancestry Plus Health

Genealogy Products and Services

MyHeritage FREE Tree Builder – Genealogy software for your computer
MyHeritage Subscription with Free Trial
Legacy Family Tree Webinars – Genealogy and DNA classes, subscription-based, some free
Legacy Family Tree Software – Genealogy software for your computer
Charting Companion – Charts and Reports to use with your genealogy software or FamilySearch
Newspapers.com

Genealogy Research

Legacy Tree Genealogists – Professional genealogy research

Books

Genealogical.com – Lots of wonderful genealogy research books

Y DNA Resources and Repository

Posted on January 2, 2021 by Roberta Estes

I’ve created a Y DNA resource page with the information in this article, here, as a permanent location where you can find Y DNA information in one place – including:

Step-by-step guides about how to utilize Y DNA for your genealogy
Educational articles and links to the latest webinars
Articles about the science behind Y DNA
Ancient DNA
Success stories

Please feel free to share this resource or any of the links to individual articles with friends, genealogy groups, or on social media.

If you haven’t already taken a Y DNA test, and you’re a male (only males have a Y chromosome,) you can order one here. If you also purchase the Family Finder, autosomal test, those results can be used to search together.

What is Y DNA?

Y DNA is passed directly from fathers to their sons, as illustrated by the blue arrow, above. Daughters do not inherit the Y chromosome. The Y chromosome is what makes males, male.

Every son receives a Y chromosome from his father, who received it from his father, and so forth, on up the direct patrilineal line.

Comparatively, mitochondrial DNA, the pink arrow, is received by both sexes of children from the mother through the direct matrilineal line.

Autosomal DNA, the green arrow, is a combination of randomly inherited DNA from many ancestors that is inherited by both sexes of children from both parents. This article explains a bit more.

Y DNA has Unique Properties

The Y chromosome is never admixed with DNA from the mother, so the Y chromosome that the son receives is identical to the father’s Y chromosome except for occasional minor mutations that take place every few generations.

This lack of mixture with the mother’s DNA plus the occasional mutation is what makes the Y chromosome similar enough to match against other men from the same ancestors for hundreds or thousands of years back in time, and different enough to be useful for genealogy. The mutations can be tracked within extended families.

In western cultures, the Y chromosome path of inheritance is usually the same as the surname, which means that the Y chromosome is uniquely positioned to identify the direct biological patrilineal lineage of males.

Two different types of Y DNA tests can be ordered that work together to refine Y DNA results and connect testers to other men with common ancestors.

FamilyTreeDNA provides STR tests with their 37, 67 and 111 marker test panels, and comprehensive STR plus SNP testing with their Big Y-700 test.

click to enlarge

STR markers are used for genealogy matching, while SNP markers work with STR markers to refine genealogy further, plus provide a detailed haplogroup.

Think of a haplogroup as a genetic clan that tells you which genetic family group you belong to – both today and historically, before the advent of surnames.

This article, What is a Haplogroup? explains the basic concept of how haplogroups are determined.

In addition to the Y DNA test itself, Family Tree DNA provides matching to other testers in their database plus a group of comprehensive tools, shown on the dashboard above, to help testers utilize their results to their fullest potential.

You can order or upgrade a Y DNA test, here. If you also purchase the Family Finder, autosomal test, those results can be used to search together.

Step-by-Step – Using Your Y DNA Results

Y DNA: Part 1 – Overview

Let’s take a look at all of the features, functions, and tools that are available on your FamilyTreeDNA personal page.

Y DNA: Part 2 – The Dictionary of DNA

What do those words mean? Here you go!

Y DNA: Step-by-Step Big Y Analysis

Come along while I step through evaluating Big Y test results.

Big Y Testing and Results

The Big Y and Genealogy

Why would you want to take a Big Y test and how can it help you?

Why the Big Y Test?

While the Big Y-500 has been superseded by the Big Y-700 test today, you will still be interested in some of the underlying technology. STR matching still works the same way.

Big Y-500 STR Matching

The Big Y-500 provided more than 500 STR markers and the Big Y-700 provides more than 700 – both significantly more than the 111 panel. The only way to receive these additional markers is by purchasing the Big Y test.

The Big Y Test Increases Again to Big Y-700

I have to tell you – I was skeptical when the Big Y-700 was introduced as the next step above the Big Y-500. I almost didn’t upgrade any kits – but I’m so very glad that I did. I’m not skeptical anymore.

Family Tree DNA’s New Big Y Block Tree

This Y DNA tree rocks. A new visual format with your matches listed on their branches. Take a look!

Educational Articles

I’ve been writing about DNA for years and have selected several articles that you may find useful.

Working with Y DNA – Your Dad’s Story

What kinds of information are available if you take a Y DNA test, and how can you use it for genealogy?

Concepts – Who To Test for Your Father’s DNA

What if your father isn’t available to take a DNA test? How can you determine who else to test that will reveal your father’s Y DNA information?

Concepts – Genetic Distance

Family Tree DNA shows the difference in the number of mutations between two men as “genetic distance.” Learn what that means and how it’s figured in this article.

Y DNA Match Changes at Family Tree DNA Affect Genetic Distance

Of course, there were changes right after I published the original Genetic Distance article. The only guarantees in life are death, taxes, and that something will change immediately after you publish.

Unexpected Discoveries Through DNA Testing

Sometimes when we take DNA tests, or others do, we discover the unexpected. That’s always a possibility. Here’s the story of my brother who wasn’t my biological brother. If you’d like to read more about Dave’s story, type “Dear Dave” into the search box on my blog. Read the articles in publication order, and not without a box of Kleenex.

Surprise Y Matches – What Do They Mean?

Often, what surprise matches mean is that you need to dig further.

Concepts – Paternal vs Patrilineal and Maternal vs Matrilineal

The words paternal and patrilineal aren’t the same thing. Paternal refers to the paternal half of your family, where patrilineal is the direct father to father line.

Concepts – Undocumented Adoptions vs Untested Y Lines

Just because you don’t have any surname matches doesn’t necessarily mean it’s because of what you’re thinking.

STRs vs SNPs, Multiple DNA Personalities

Short tandem repeats (STRs) and single nucleotide polymorphisms (SNPs) aren’t the same thing and are used differently in genealogy.

Triangulation for Y DNA

Piecing together your ancestor’s Y DNA from descendants.

Haplogroups and the Three Brothers

Haplogroups are something like our pedigree charts.

Zeroes aka Deletions – Null DNA Markers

What does it mean when you have a zero for a marker value?

Using Spousal Surnames and DNA to Unravel Male Lines

There’s more than one way to break down that brick wall. Here’s how I figured out which of 4 sons was my ancestor.

Caution: Invisible Fathers and Autosomal Matching – Who’s Hiding in Your DNA?

Just because you match the right line autosomally doesn’t mean it’s because you descend from the male child you think is your ancestor. Females gave their surnames to children born outside of a legal marriage which can lead to massive confusion. This is absolutely why you need to test the Y DNA of every single ancestral line.

Concepts: What are NPEs and MPEs?

When the direct patrilineal line isn’t the line you’re expecting.

New Counties of Origin Locations for Y and Mitochondrial Ancestors and Haplotrees at FamilyTreeDNA

You can now tell by looking at the flags on the haplotree where other people’s ancestral lines on your branch are from. This is especially useful if you’ve taken the Big Y test and can tell you if you’re hunting in the right location.

Working with the New Big Y Results (hg38)

If you’re just now testing or tested in 2018 or after, you don’t need to read this article unless you’re interested in the improvements to the Big Y test over the years.

Big Y News and Stats

2019 was a banner year for discovery. 2020 was even more so, keeping up an amazing pace. I need to write a 2020 update article.

Glossary – Terminal SNP

What is a terminal SNP? Hint – it’s not fatal😊

Averages, TIP Calculator and One Size Fits All

How the TIP calculator works and how to best interpret the results. Note that this tool is due for an update that incorporates more markers and SNP results too.

DNA Tidbit #2: FamilyTreeDNA’s Compare Origins Map

You can view the location of the Y DNA and mitochondrial DNA ancestors of people whose ethnicity you match.

Tools and Techniques

Family Tree DNA’s PUBLIC Y DNA Haplotree

This free public tree is amazing, showing locations of each haplogroup and totals by haplogroup and country, including downstream branches.

Search Techniques for Y and Mitochondrial DNA Test Candidates

Need to search for and find Y DNA candidates when you don’t know anyone from that line? Here’s how.

Proving Men Whose Y Lines Don’t Match are Related

Yes, it’s still possible to resolve this issue using autosomal DNA. Non-matching Y DNA isn’t the end of the road, just a fork.

Science Meets Genealogy – Including Ancient DNA

Haplogroup C3*- Previously Believed East Asian Haplogroup is Proven Native American

Haplogroup C was an unexpected find in the Americas and reaches into South America.

New Haplogroup C Native American Subgroups

Haplogroup C is found in several North American tribes.

Native American Haplogroup C Update – Progress

Haplogroup C is found as far east as Nova Scotia.

Further Analysis of Native American Haplogroup C-P39 Planned

Test by test, we made progress.

Native American Y Haplogroup C-P39 Sprouts Branches

New testers, new branches. The research continues.

The New Root – Haplogroup A00

The discovery of haplogroup A00 was truly amazing when it occurred – the base of the phylotree in Africa.

Family Tree DNA Research Center Facilitates Discovery of Ancient Root to Y Tree

The press release about the discovery of haplogroup A00.

Rare African Y DNA Haplogroup A00 Sprouts New Branches

In 2018, a living branch of A00 was discovered in Africa, and in 2020, an ancient DNA branch.

New Y DNA Haplogroup Naming Convention

Did you know that haplogroups weren’t always known by their SNP names?

Family Tree DNA Names 100,000 New Y DNA SNPs

This brought the total of SNPs discovered by Family Tree DNA in mid-2018 to 153,000. I should contact the Research Center to see how many they have named at the end of 2020.

Exciting New Y DNA Haplogroup D Discoveries

An academic paper split ancient haplogroup D, but then the phylogenetic research team at FamilyTreeDNA split it twice more! This might not sound exciting until you realize this redefines what we know about early man, in Africa and as he emerged from Africa.

Y DNA Haplogroup P Gets a Brand-New Root – Plus Some Branches

Ancient DNA splits haplogroup P after analyzing the remains of two Jehai people from West Malaysia.

Kennewick Man is Native American

For years I doubted Kennewick Man’s DNA would ever be sequenced, but it finally was. Kennewick Man’s mitochondrial DNA haplogroup is X2a and his Y DNA was confirmed to Q-M3 in 2015.

442 Ancient Viking Skeletons Hold DNA Surprises – Does your Y or Mitochondrial DNA Match?

Compare your own DNA to Vikings!

Ancient Icelandic Viking Settlers Expand the Y DNA Tree

Twenty-seven Icelandic Viking skeletons tell a very interesting story.

Ancient Ireland’s Y and Mitochondrial DNA – Do You Match?

Irish ancestors? Check your DNA and see if you match.

Longobards Ancient DNA from Pannonia and Italy – What Does Their DNA Tell Us? Are You Related?

Ancestors from Hungary or Italy? Take a look. These remains have matches to people in various places throughout Europe.

New Discoveries Shed Light on Out of Africa Theory and Beyond

The Y DNA story is no place near finished. Dr. Miguel Vilar, former Lead Scientist for National Geographic’s Genographic Project provides additional analysis and adds a theory.

Webinars

Y DNA Webinar at Legacy Family Tree Webinars – a 90-minute webinar for those who prefer watching to learn! It’s not free, but you can subscribe here.

Success Stories and Genealogy Discoveries

Almost everyone has their own Y DNA story of discovery. Because the Y DNA follows the surname line, Y DNA testing often helps push those lines back a generation, or two, or four. When STR markers fail to be enough, we can turn to the Big Y-700 test which provides SNP markers down to the very tip of the leaves in the Y DNA tree. Often, but not always, family-defining SNP branches will occur which are much more stable and reliable than STR mutations – although SNPs and STRs should be used together.

The DNA Pedigree Chart – Mining for Ancestors

Methodologies to find ancestral lines to test, or maybe descendants who have already tested.

Germain Doucet and Haplogroup C3b

DNA testing reveals an unexpected mystery several hundred years old.

Jacob Lentz’s Signatures: Cursive and Genetic

When I write each of my “52 Ancestor” stories, I include genetic information, for the ancestor and their descendants, when I can. Jacob was special because, in addition to being able to identify his autosomal DNA, his Y DNA matches the ancient DNA of the Yamnaya people. You can read about his Y DNA story in Jakob Lenz (1748-1821), Vinedresser.

Please feel free to add your success stories in the comments.

What About You?

You never know what you’re going to discover when you test your Y DNA. If you’re a female, you’ll need to find a male that descends from the line you want to test via all males to take the Y DNA test on your behalf. Of course, if you want to test your father’s line, your father, or a brother through that father, or your uncle, your father’s brother, would be good candidates.

What will you be able to discover? Who will the earliest known ancestor with that same surname be among your matches? Will you be able to break down a long-standing brick wall? You’ll never know if you don’t test.

You can click here to upgrade an existing test or order a Y DNA test.

Share the Love

You can always forward these articles to friends or share by posting links on social media. Who do you know that might be interested?

_____________________________________________________________

Disclosure

Thank you so much.

DNA Purchases and Free Transfers

FamilyTreeDNA – Y, mitochondrial, and autosomal DNA testing
MyHeritage DNA – ancestry autosomal DNA only, not health
MyHeritage FREE DNA file upload – transfer your results from other vendors free
AncestryDNA – autosomal DNA only
23andMe Ancestry – autosomal DNA only, no Health
23andMe Ancestry Plus Health

Genealogy Products and Services

MyHeritage FREE Tree Builder – genealogy software for your computer
MyHeritage Subscription with Free Trial
Legacy Family Tree Webinars – genealogy and DNA classes, subscription-based, some free
Legacy Family Tree Software – genealogy software for your computer
Charting Companion – Charts and Reports to use with your genealogy software or FamilySearch

Genealogy Research

Legacy Tree Genealogists – Professional genealogy research

Books

Genealogical.com – Lots of wonderful genealogy research books

“Earliest Known Ancestors” at Family Tree DNA in 3 Easy Steps

Posted on July 7, 2020 by Roberta Estes

Why should you take the time to complete the information about your earliest known ancestor, your EKA, at Family Tree DNA?

The answer is simple – because it helps you with your genealogy and it helps others too. Genealogy, and in particular, genetic genealogy is by definition a team sport. It takes at least two to test and match – and the more, the merrier. From there, it’s all about information sharing.

Maybe the easiest way to illustrate the benefit of providing Earliest Known Ancestor information is by showing what happens if you DON’T complete the EKA field.

To be direct, you lose important opportunities to work with other genealogists and, if others don’t complete their EKA, you also lose the opportunity to see who their earliest known ancestors are. This information, when viewing your Y and mitochondrial DNA matches, shows immediately who is from your genetic line. It can also help you break down brick walls to push your own EKA back a few generations. I’ve used this tactic, successfully, repeatedly with both Y and mitochondrial DNA.

Earliest Known Ancestors Are Used 7 Ways

Matches – Every Y and mitochondrial DNA match displays your matches’ Earliest Known Ancestor

Here’s what your matches look like if they don’t complete their EKA information.

eka match.png

How depressing to see blanks listed for the Earliest Known Ancestor for your matches. These are exact full sequence mitochondrial matches, but no ancestors listed. A few do have trees, as indicated by the blue pedigree icon, but the ability to quickly view a list of ancestors would be so beneficial.

Looking at the matches for one of my Estes male cousins, below, you can see a much more helpful example.

eka complete

You may see a genealogical line you recognize. Or, several you don’t which may serve as a huge hint.

eka project.png

Surname and other types of projects, meant to attract more testers, also suffer when Earliest Known Ancestors and Countries of Origin, when known, aren’t completed.
Matches Maps – Another place where your Earliest Known Ancestor information will help is on the Matches Map which displays the location of your matches Earliest Known Ancestors, available for both Y DNA tests and mitochondrial DNA tests as well as Family Finder.

eka matches map

Looking for clusters of matches can be very revealing and can point your research in a specific direction. Genetic clues are indispensable, as is the information about the earliest ancestors of your matches. I am clearly related to these clusters of people in Scandinavia – but it’s up to me to figure out how, and when. It would be very useful to know of any of them share the same EKA.

Additional places where your EKA is utilized to provide information about your ancestry include:

Ancestral Origins: A page provided for both Y and mtDNA results where locations of your matches’ EKA are shown.
Haplogroup Origins: A page provided for both Y and mtDNA where locations of your haplogroup are found.

eka origins.jpg

I wrote about Ancestral Origins and Haplogroup Origins, here, and here, with lots of examples.

Two public places where Country of Origin is utilized in on the public Y DNA haplotree, shown here, and corresponding public mitochondrial DNA phylotree, shown here.

I wrote about the Y tree, here, which shows locations for each haplogroup. An article about the mitochondrial tree can be found here. These are the most comprehensive trees available, anyplace, and they are completely free and accessible to anyone, whether they have tested at FamilyTreeDNA or not. Science at work.

That’s 7 different ways your Earliest Known Ancestor information can benefit you – and others too.

However, this information can’t be utilized unless testers complete their EKA information.

Here’s how to enter your EKA information.

How Do You Complete Your Earliest Known Ancestor Information?

Your ancestor information lives in three separate places at FamilyTreeDNA – and they are not all interconnected meaning they don’t necessarily feed each other bidirectionally.

The information is easy to complete. We will step through each location and how to update your information.

What is Direct Paternal and Direct Maternal?

Before we go any further, let’s take just a minute and define these two terms.

When completing Earliest Known Ancestor information, you’ll be asked for your “Direct Paternal Ancestor” and “Direct Maternal Ancestor.” This does NOT mean the oldest person on each side, literally. Some people interpret that to mean the furthest person back on that side of your family. That’s NOT what it means either.

Your direct paternal ancestor is the furthest person in your tree on your father’s, father’s father’s direct paternal line. In other words, your most distant patrilineal ancestor.

Your direct maternal ancestor is the further person in your tree on your mother’s mother’s mother’s direct maternal line. This is your most distant matrilineal ancestor.

eka maternal paternal.png

In this view of my cousin’s tree, Holman Estes is the Earliest Known Ancestor on the paternal, meaning patrilineal, line. Of course, that’s also the Y DNA inheritance path too.

Sarah Jones is the Earliest Known Ancestor on the maternal, or matrilineal line. Mitochondria DNA descends down the matrilineal line.

The home person in this tree inherited the Y DNA of Holman Estes (and his patrilineal ancestors) and the mitochondrial DNA of Sarah Jones (and her matrilineal ancestors.)

Ok, let’s put this information to work.

Step 1 – Earliest Known Ancestor

When you sign on, click on the down arrow beside your name on the upper right hand corner of your personal page.

eka account settings

Click on “Account Settings.”

On the “Account Settings” page, click on “Genealogy,” then on “Earliest Known Ancestors.”

eka eka.png

In our example, above, the tester has completed the Direct Paternal Ancestor information, but not the Direct Maternal Ancestor.

Note that “Country of Origin” and “Location” are somewhat different. Location can mean something as specific as a city, county or region, along with map coordinates.

Country of Origin can mean something different.

To select a location and to complete your ancestor’s information, click on “Update Location.” If you don’t click on “Update Location,” you’ll need to save this form before exiting.

When you click on “Update Location,” the system takes you to the Matches Map screen where you can easily plot ancestral locations.

eka plot locations

In our example, we see that our tester has already entered his paternal EKA, Nicholas Ewstes in Deal, in the UK. We don’t need to do anything to that information, but we need to add a Maternal Location.

Click on “Edit Location”

eka update locations.png

You’ll see a screen where you can click to edit either the Maternal or Paternal Location. In this case, I’m selecting Maternal.

eka step 2

Enter the name of your ancestor. I tend to enter more information that will uniquely identify her to someone looking at their match list, such as when and where she lived.

eka more.png

If there’s room, I could also add “m 1849 Hayesville, Ohio to John Parr” which would further uniquely identify Sarah – especially given that her surname is Jones. If a match sees “Sarah Jones,” that doesn’t provide much context, but “Sarah Jones married in 1849 in Hayesville, Ohio to James Parr,” even if the tester doesn’t provide a tree, gives the match something to sink their teeth into.

When finished, click “Next.”

eka step 3

Enter the location and press “Search.” Longitude and latitude will be filled in for you.

eka select.png

Click “Select” if this is the correct location.

eka step 4

By changing the location name here, you could enter a historical name, for example, if the location name has changed since your ancestor lived there.

eka exit.png

You’ll see the final information before you Save and Exit.

eka both

You’ll view the map with your direct paternal ancestor and direct maternal ancestor both shown with pins on your map. This is before matching, of course.

Now, if you look back at the Direct Maternal Ancestor field under Account Settings, you’ll see the information you entered on the map, except for the Country of Origin.

eka direct maternal.png

This information doesn’t feed backwards into the EKA “Country of Origin” field, because country of origin can mean different things.

For example, my cousin’s direct maternal ancestor’s location would be United States because that’s where she lived. But is it where her line originated?

eka unknown origin

When looking at the Country of Origin dropdown box, you can see that United States can actually mean different things.

Does it mean she was born here and we know her ancestors were European or African, but the specific country is uncertain?
Does it mean her ancestors were Native American – and if so, do we actually know that, or is it yet unproven oral history?
Or does United States simply mean that my cousin’s genealogy is stuck in Ohio?

In his case, it means stuck in Ohio. The mitochondrial haplogroup of this woman’s direct matrilineal descendants and her Matches Map tells us that her ancestors were European in origin, not Native or African.

In his case, “Unknown Origin” is not inaccurate, but by making that selection, other people won’t know if the tester really doesn’t know, or if they simply forgot to enter a location. I generally enter “United States” when the US is where I’m stuck.

Please note that the actual geographic location, including longitude and latitude, does populate from map selections.

When exiting the Direct Maternal or Direct Paternal Ancestors page, always click on the orange Save button, or it won’t.

Step 2 – Matches Map

You’ve already had a preview of this functionality in Step 1.

eka y matches map.png

The second way to populate EKA information is to select Matches Map directly from the menu on your personal page at Family Tree DNA.

click to enlarge

I clicked on Matches Map from my cousin’s Y DNA page, so we’ll see his Y DNA Matches displayed. These pins displayed on his map are there because his matches entered their Earliest Known Ancestor information. The different colors indicate the relative closeness of matches.

His white pin that shows his own ancestor is displayed behind several other men’s pins (red arrow at right) who have also tracked their Y DNA ancestor to Deal, England and match the tester.

My cousin can update or enter his EKA information by clicking on “Update Ancestor’s Location” (red arrow at bottom) where a box allowing him to select between Paternal and Maternal will be displayed.

Please note that every pin on this map has an associated match that can be displayed by either mousing over the individual pins or by clicking on “Show Match List” in the bottom left corner.

Step 3 – Trees

Be sure to upload your tree too.

eka pedigree.png

Y DNA and mitochondrial DNA match pedigree icons looks like this, indicating your match has uploaded or created a tree.

eka pedigree ff

The Family Finder pedigree icon will be blue if a tree is provided and greyed out otherwise.

Always check your match’s tree because sometimes the Earliest Known Ancestor and the earliest ancestor in your match’s tree are not the same person.

Additional research may have been completed, but regardless of the reason for a discrepancy, you want to view the most distant person in that line.

Sometimes people get confused about who belongs in the Earliest Known Ancestor field, so a tree check is always a good idea.

Hint: If you see a male in the maternal field, you know they are confused. Same for a female in the paternal field.

To create or upload a GEDCOM file click on “myTree” at the top of your personal page.

download ancestry ftdna

Then, select your choice of creating a tree manually or uploading a GEDCOM file that you already created elsewhere.

eka create tree.png

If you need to download a tree from Ancestry to upload to FamilyTreeDNA, I wrote about how to do that, here.

Whether you upload or create a tree, choose yourself (assuming it’s your test, or select the person whose DNA test it is) as the home person in the tree.

eka home person

Bonus – Ancestral Surnames

Once your tree is uploaded, if you have NOT previously entered your Ancestral Surnames (under Account Settings,) uploading a GEDCOM file will populate the surnames, but not just with your direct ancestral lines. It populates ALL of the surnames from your tree. This isn’t a feature that I want. I recommend adding only direct line surnames manually or from a spreadsheet. If you have a small tree or don’t mind having surname matches not in your direct line, then allowing the surnames to auto-populate is probably fine.

eka surnames.png

If you’re wondering how Ancestral Surnames are used, the two Family Finder matches below illustrate the benefits.

eka surname list

When you have matching surnames in common, they float to the top of the list and are bolded. The first match matches the tester and they bothhave those bolded surnames in their trees.

With no matching surnames, the list is still present, but no bolding, as shown in the second match.

eka surname bold.png

You can then click on the ancestral surnames to see all of the surnames listed by that match.

If you search for matches that include a specific surname on Family Finder, that surname is displayed blue, the common surnames are bolded, and the rest aren’t.

By looking at these common ancestral surnames, I can often tell immediately how I’m related to my match.

eka surname blue.png

Summary

Using Earliest Known Ancestors, Matches Maps and Ancestral Surnames at Family Tree DNA is as easy a 1-2-3 and well worth the effort.

If you provided this information previously, is it still up to date? For your kit and any others you manage?

What hints are waiting for you?

Have other people uploaded their trees or added EKAs since you last checked?

You can always send an email to your matches who need to add Earliest Known Ancestors by clicking on the envelope icon. Feel free to provide them with a link to this article that explains the benefits of entering their EKA information along with step-by-step instructions.

DNA is the gift that just keeps on giving – but it can give a lot more with Earliest Known Ancestors and their locations!

_____________________________________________________________

Disclosure

Thank you so much.

DNA Purchases and Free Transfers

FamilyTreeDNA – Y, mitochondrial and autosomal DNA testing
MyHeritage DNA – ancestry autosomal DNA only, not health
MyHeritage DNA plus Health
MyHeritage FREE DNA file upload – transfer your results from other vendors free
AncestryDNA – autosomal DNA only
23andMe Ancestry – autosomal DNA only, no Health
23andMe Ancestry Plus Health
LivingDNA

Genealogy Products and Services

MyHeritage FREE Tree Builder – genealogy software for your computer
MyHeritage Subscription with Free Trial
Legacy Family Tree Webinars – genealogy and DNA classes, subscription-based, some free
Legacy Family Tree Software – genealogy software for your computer
Charting Companion – Charts and Reports to use with your genealogy software or FamilySearch

Genealogy Research

Legacy Tree Genealogists – professional genealogy research

DNAeXplained – Genetic Genealogy

Discovering Your Ancestors – One Gene at a Time

Category Archives: Earliest Known Ancestors

Which DNA Test Should I Buy? And Why?

Like this:

DNA: In Search of…Full and Half-Siblings

Like this:

DNA: In Search of…Signs of Endogamy

Like this:

In Search of…Vendor Features, Strengths, and Testing Strategies

Like this:

Identify Your Ancestors – Follow Nested Ancestral Segments

Like this:

FamilyTreeDNA Relaunch – New Feature Overview

Like this:

RootsTech Connect 2021: Comprehensive DNA Session List

Like this:

Y DNA Resources and Repository

Like this:

“Earliest Known Ancestors” at Family Tree DNA in 3 Easy Steps

Like this:

Share this:

Like this:

Share this:

Like this:

Share this:

Like this:

Share this:

Like this:

Share this:

Like this:

Share this:

Like this:

Share this:

Like this:

Share this:

Like this:

Share this:

Like this:

Share this:

Like this: