Concepts: Inheritance

Inheritance.

What is it?

How does it work?

I’m not talking about possessions – but about the DNA that you receive from your parents, and their parents.

The reason that genetic genealogy works is because of inheritance. You inherit DNA from your parents in a known and predictable fashion.

Fortunately, we have more than one kind of DNA to use for genealogy.

Types of DNA

Females have 3 types of DNA and males have 4. These different types of DNA are inherited in various ways and serve different genealogical purposes.

Males Females
Y DNA Yes No
Mitochondrial DNA Yes Yes
Autosomal DNA Yes Yes
X Chromosome Yes, their mother’s only Yes, from both parents

Different Inheritance Paths

Different types of DNA are inherited from different ancestors, down different ancestral paths.

Inheritance Paths

The inheritance path for Y DNA is father to son and is inherited by the brother, in this example, from his direct male ancestors shown by the blue arrow. The sister does not have a Y chromosome.

The inheritance path for the red mitochondrial DNA for both the brother and sister is from the direct matrilineal ancestors, only, shown by the red arrow.

Autosomal DNA is inherited from all ancestral lines on both the father’s and mother’s side of your tree, as illustrated by the broken green arrow.

The X chromosome has a slightly different inheritance path, depending on whether you are a male or female.

Let’s take a look at each type of inheritance, how it works, along with when and where it’s useful for genealogy.

Autosomal DNA

Autosomal DNA testing is the most common. It’s the DNA that you inherit from both of your parents through all ancestral lines back in time several generations. Autosomal DNA results in matches at the major testing companies such as FamilyTreeDNA, MyHeritage, Ancestry, and 23andMe where testers view trees or other hints, hoping to determine a common ancestor.

How does autosomal DNA work?

22 autosomes

Every person has two each of 22 chromosomes, shown above, meaning one copy is contributed by your mother and one copy by your father. Paired together, they form the two-sided shape we are familiar with.

For each pair of chromosomes, you receive one from your father, shown with a blue arrow under chromosome 1, and one from your mother, shown in red. In you, these are randomly combined, so you can’t readily tell which piece comes from which parent. Therein lies the challenge for genealogy.

This inheritance pattern is the same for all chromosomes, except for the 23rd pair of chromosomes, at bottom right, which determined the sex of the child.

The 23rd chromosome pair is inherited differently for males and females. One copy is the Y chromosome, shown in blue, and one copy is the X, shown in red. If you receive a Y chromosome from your father, you’re a male. If you receive an X from your father, you’re a female.

Autosomal Inheritance

First, let’s talk about how chromosomes 1-22 are inherited, omitting chromosome 23, beginning with grandparents.

Inheritance son daughter

Every person inherits precisely half of each of their parents’ autosomal DNA. For example, you will receive one copy of your mother’s chromosome 1. Your mother’s chromosome 1 is a combination of her mother’s and father’s chromosome 1. Therefore, you’ll receive ABOUT 25% of each of your grandparents’ chromosome 1.

Inheritance son daughter difference

In reality, you will probably receive a different amount of your grandparent’s DNA, not exactly 25%, because your mother or father will probably contribute slightly more (or less) of the DNA of one of their parents than the other to their offspring.

Which pieces of DNA you inherit from your parents is random, and we don’t know how the human body selects which portions are and are not inherited, other than we know that large pieces are inherited together.

Therefore, the son and daughter won’t inherit the exact same segments of the grandparents’ DNA. They will likely share some of the same segments, but not all the same segments.

Inheritance maternal autosomalYou’ll notice that each parent carries more of each color DNA than they pass on to their own children, so different children receive different pieces of their parents’ DNA, and varying percentages of their grandparents’ DNA.

I wrote about a 4 Generation Inheritance Study, here.

Perspective

Keep in mind that you will only inherit half of the DNA that each of your parents carries.

Looking at a chromosome browser, you match your parents on all of YOUR chromosomes.

Inheritance parental autosomal

For example, this is me compared to my father. I match my father on either his mother’s side, or his father’s side, on every single location on MY chromosomes. But I don’t match ALL of my father’s DNA, because I only received half of what he has.

From your parents’ perspective, you only have half of their DNA.

Let’s look at an illustration.

Inheritance mom dad

Here is an example of one of your father’s pairs of chromosomes 1-22. It doesn’t matter which chromosome, the concepts are the same.

He inherited the blue chromosome from his father and the pink chromosome from his mother.

Your father contributed half of his DNA to you, but that half is comprised of part of his father’s chromosome, and part of his mother’s chromosome, randomly selected in chunks referred to as segments.

Inheritance mom dad segments

Your father’s chromosomes are shown in the upper portion of the graphic, and your chromosome that you inherited from you father is shown below.

On your copy of your father’s chromosome, I’ve darkened the dark blue and dark pink segments that you inherited from him. You did not receive the light blue and light pink segments. Those segments of DNA are lost to your line, but one of your siblings might have inherited some of those pieces.

Inheritance mom dad both segments

Now, I’ve added the DNA that you inherited from your Mom into the mixture. You can see that you inherited the dark green from your Mom’s father and the dark peach from your Mom’s mother.

Inheritance grandparents dna

These colored segments reflect the DNA that you inherited from your 4 grandparents on this chromosome.

I often see questions from people wondering how they match someone from their mother’s side and someone else from their father’s side – on the same segment.

Understanding that you have a copy of the same chromosome from your mother and one from your father clearly shows how this happens.

Inheritance match 1 2

You carry a chromosome from each parent, so you will match different people on the same segment. One match is to the chromosome copy from Mom, and one match is to Dad’s DNA.

Inheritance 4 gen

Here is the full 4 generation inheritance showing Match 1 matching a segment from your Dad’s father and Match 2 matching a segment from your Mom’s father.

Your Parents Will Have More Matches Than You Do

From your parents’ perspective, you will only match (roughly) half of the DNA with other people that they will match. On your Dad’s side, on segment 1, you won’t match anyone pink because you didn’t inherit your paternal grandmother’s copy of segment 1, nor did you inherit your maternal grandmother’s segment 1 either. However, your parents will each have matches on those segments of DNA that you didn’t inherit from them.

From your perspective, one or the other of your parents will match ALL of the people you match – just like we see in Match 1 and Match 2.

Matching you plus either of your parents, on the same segment, is exactly how we determine whether a match is valid, meaning identical by descent, or invalid, meaning identical by chance. I wrote about that in the article, Concepts: Identical by…Descent, State, Population and Chance.

Inheritance on chromosomes 1-22 works in this fashion. So does the X chromosome, fundamentally, but the X chromosome has a unique inheritance pattern.

X Chromosome

The X chromosome is inherited differently for males as compared to females. This is because the 23rd pair of chromosomes determines a child’s sex.

If the child is a female, the child inherits an X from both parents. Inheritance works the same way as chromosomes 1-22, conceptually, but the inheritance path on her father’s side is different.

If the child is a male, the father contributes a Y chromosome, but no X, so the only X chromosome a male has is his mother’s X chromosome.

Males inherit X chromosomes differently than females, so a valid X match can only descend from certain ancestors on your tree.

inheritance x fan

This is my fan chart showing the X chromosome inheritance path, generated by using Charting Companion. My father’s paternal side of his chart is entirely blank – because he only received his X chromosome from his mother.

You’ll notice that the X chromosome can only descend from any male though his mother – the effect being a sort of checkerboard inheritance pattern. Only the pink and blue people potentially contributed all or portions of X chromosomes to me.

This can actually be very useful for genealogy, because several potential ancestors are immediately eliminated. I cannot have any X chromosome segment from the white boxes with no color.

The X Chromsome in Action

Here’s an X example of how inheritance works.

Inheritance X

The son inherits his entire X chromosome from his mother. She may give him all of her father’s or mother’s X, or parts of both. It’s not uncommon to find an entire X chromosome inherited. The son inherits no X from his father, because he inherits the Y chromosome instead.

Inheritance X daughter

The daughter inherits her father’s X chromosome, which is the identical X chromosome that her father inherited from his mother. The father doesn’t have any other X to contribute to his daughter, so like her father, she inherits no portion of an X chromosome from her paternal grandfather.

The daughter also received segments of her mother’s X that her mother inherited maternally and paternally. As with the son, the daughter can receive an entire X chromosome from either her maternal grandmother or maternal grandfather.

This next illustration ONLY pertains to chromosome 23, the X and Y chromosomes.

Inheritance x y

You can see in this combined graphic that the Y is only inherited by sons from one direct line, and the father’s X is only inherited by his daughter.

X chromosome results are included with autosomal results at both Family Tree DNA and 23andMe, but are not provided at MyHeritage. Ancestry, unfortunately, does not provide segment information of any kind, for the X or chromosomes 1-22. You can, however, transfer the DNA files to Family Tree DNA where you can view your X matches.

Note that X matches need to be larger than regular autosomal matches to be equally as useful due to lower SNP density. I use 10-15 cM as a minimum threshold for consideration, equivalent to about 7 cM for autosomal matches. In other words, roughly double the rule of thumb for segment size matching validity.

Autosomal Education

My blog is full of autosomal educational articles and is fully keyword searchable, but here are two introductory articles that include information from the four major vendors:

When to Purchase Autosomal DNA Tests

Literally, anytime you want to work on genealogy to connect with cousins, prove ancestors or break through brick walls.

  • Purchase tests for yourself and your siblings if both parents aren’t living
  • Purchase tests for both parents
  • Purchase tests for all grandparents
  • Purchase tests for siblings of your parents or your grandparents – they have DNA your parents (and you) didn’t inherit
  • Test all older generation family members
  • If the family member is deceased, test their offspring
  • Purchase tests for estimates of your ethnicity or ancestral origins

Y DNA

Y DNA is only inherited by males from males. The Y chromosome is what makes a male, male. Men inherit the Y chromosome intact from their father, with no contribution from the mother or any female, which is why men’s Y DNA matches that of their father and is not diluted in each generation.

Inheritance y mtdna

If there are no adoptions in the line, known or otherwise, the Y DNA will match men from the same Y DNA line with only small differences for many generations. Eventually, small changes known as mutations accrue. After many accumulated mutations taking several hundred years, men no longer match on special markers called Short Tandem Repeats (STR). STR markers generally match within the past 500-800 years, but further back in time, they accrue too many mutations to be considered a genealogical-era match.

Family Tree DNA sells this test in 67 and 111 marker panels, along with a product called the Big Y-700.

The Big Y-700 is the best-of-class of Y DNA tests and includes at least 700 STR markers along with SNPs which are also useful genealogically plus reach further back in time to create a more complete picture.

The Big Y-700 test scans the entire useful portion of the Y chromosome, about 15 million base pairs, as compared to 67 or 111 STR locations.

67 and 111 Marker Panel Customers Receive:

  • STR marker matches
  • Haplogroup estimate
  • Ancestral Origins
  • Matches Map showing locations of the earliest known ancestors of matches
  • Haplogroup Origins
  • Migration Maps
  • STR marker results
  • Haplotree and SNPs
  • SNP map

Y, mitochondrial and autosomal DNA customers all receive options for Advanced Matching.

Big Y-700 customers receive, in addition to the above:

  • All of the SNP markers in the known phylotree shown publicly, here
  • A refined, definitive haplogroup
  • Their place on the Block Tree, along with their matches
  • New or unknown private SNPs that might lead to a new haplogroup, or genetic clan, assignment
  • 700+ STR markers
  • Matching on both the STR markers and SNP markers, separately

Y DNA Education

I wrote several articles about understanding and using Y DNA:

When to Purchase Y DNA Tests

The Y DNA test is for males who wish to learn more about their paternal line and match against other men to determine or verify their genealogical lineage.

Women cannot test directly, but they can purchase the Y DNA test for men such as fathers, brothers, and uncles.

If you are purchasing for someone else, I recommend purchasing the Big Y-700 initially.

Why purchase the Big Y-700, when you can purchase a lower level test for less money? Because if you ever want to upgrade, and you likely will, you have to contact the tester and obtain their permission to upgrade their test. They may be ill, disinterested, or deceased, and you may not be able to upgrade their test at that time, so strike while the iron is hot.

The Big Y-700 provides testers, by far, the most Y DNA data to work (and fish) with.

Mitochondrial DNA

Inheritance mito

Mitochondrial DNA is passed from mothers to both sexes of their children, but only females pass it on.

In your tree, you and your siblings all inherit your mother’s mitochondrial DNA. She inherited it from her mother, and your grandmother from her mother, and so forth.

Mitochondrial DNA testers at FamilyTreeDNA receive:

  • A definitive haplogroup, thought of as a genetic clan
  • Matching
  • Matches Map showing locations of the earliest know ancestors of matches
  • Personalized mtDNA Journey video
  • Mutations
  • Haplogroup origins
  • Ancestral origins
  • Migration maps
  • Advanced matching

Of course, Y, mitochondrial and autosomal DNA testers can join various projects.

Mitochondrial DNA Education

I created a Mitochondrial DNA page with a comprehensive list of educational articles and resources.

When to Purchase Mitochondrial DNA Tests

Mitochondrial DNA can be valuable in terms of matching as well as breaking down brick walls for women ancestors with no surnames. You can also use targeted testing to prove, or disprove, relationship theories.

Furthermore, your mitochondrial DNA haplogroup, like Y DNA haplogroups, provides information about where your ancestors came from by identifying the part of the world where they have the most matches.

You’ll want to purchase the mtFull sequence test provided by Family Tree DNA. Earlier tests, such as the mtPlus, can be upgraded. The full sequence test tests all 16,569 locations on the mitochondria and provides testers with the highest level matching as well as their most refined haplogroup.

The full sequence test is only sold by Family Tree DNA and provides matching along with various tools. You’ll also be contributing to science by building the mitochondrial haplotree of womankind through the Million Mito Project.

Combined Resources for Genealogists

You may need to reach out to family members to obtain Y and mitochondrial DNA for your various genealogical lines.

For example, the daughter in the tree below, a genealogist, can personally take an autosomal test along with a mitochondrial test for her matrilineal line, but she cannot test for Y DNA, nor can she obtain her paternal grandmother’s mitochondrial DNA directly by testing herself.

Hearts represent mitochondrial DNA, and stars, Y DNA.

Inheritance combined

However, our genealogist’s brother, father or grandfather can test for her father’s (blue star) Y DNA.

Her father or any of his siblings can test for her paternal grandmother’s (hot pink heart) mitochondrial DNA, which provides information not available from any other tester in this tree, except for the paternal grandmother herself.

Our genealogist’s paternal grandfather, and his siblings, can test for his mother’s (yellow heart) mitochondrial DNA.

Our genealogist’s maternal grandfather can test for his (green star) Y DNA and (red heart) mitochondrial DNA.

And of course, it goes without saying that every single generation upstream of the daughter, our genealogist, should all take autosomal DNA tests.

So, with several candidates, who can and should test for what?

Person Y DNA Mitochondrial Autosomal
Daughter No Y – can’t test Yes, her pink mother’s Yes – Test
Son Yes – blue Y Yes, his pink mother’s Yes – Test
Father Yes – blue Y Yes – his magenta mother’s Yes – Test
Paternal Grandfather Yes – blue Y – Best to Test Yes, his yellow mother’s – Test Yes – Test
Mother No Y – can’t test Yes, her pink mother’s Yes – Test
Maternal Grandmother No Y – can’t test Yes, her pink mother’s – Best to Test Yes – Test
Maternal Grandfather Yes – green Y – Test Yes, his red mother’s – Test Yes – Test

The best person/people to test for each of the various lines and types of DNA is shown bolded above…assuming that all people are living. Of course, if they aren’t, then test anyone else in the tree who carries that particular DNA – and don’t forget to consider aunts and uncles, or their children, as candidates.

If one person takes the Y and/or mitochondrial DNA test to represent a specific line, you don’t need another person to take the same test for that line. The only possible exception would be to confirm a specific Y DNA result matches a lineage as expected.

Looking at our three-generation example, you’ll be able to obtain a total of two Y DNA lines, three mitochondrial DNA lines, and 8 autosomal results, helping you to understand and piece together your family line.

You might ask, given that the parents and grandparents have all autosomally tested in this example, if our genealogist really needs to test her brother, and the answer is probably not – at least not today.

However, in cases like this, I do test the sibling, simply because I can learn and it may encourage their interest or preserve their DNA for their children who might someday be interested. We also don’t know what kind of advances the future holds.

If the parents aren’t both available, then you’ll want to test as many of your (and their) siblings as possible to attempt to recover as much of the parents’ DNA, (and matches) as possible.

Your family members’ DNA is just as valuable to your research as your own.

Increase Your Odds

Don’t let any of your inherited DNA go unused.

You can increase your odds of having autosomal matches by making sure you are in all 4 major vendor databases.

Both FamilyTreeDNA and MyHeritage accept transfers from 23andMe and Ancestry, who don’t accept transfers. Transferring and matching is free, and their unlock fees, $19 at FamilyTreeDNA, and $29 at MyHeritage, respectively, to unlock their advanced tools are both less expensive than retesting.

You’ll find easy-to-follow step-by-step transfer instructions to and from the vendors in the article DNA File Upload-Download and Transfer Instructions to and from DNA Testing Companies.

Order

You can order any of the tests mentioned above by clicking on these links:

Autosomal:

Transfers

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Disclosure

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 Transfers

Genealogy Products and Services

Genealogy Research

Charting Companion Creates Easy, Quick Last-Minute Gifts

Do you need something quickly for a last-minute gift? One of my blog readers asked about printing quality genealogy charts and I have a super-easy solution. You can literally be printing charts in minutes.

Genealogy charts are perfect gifts because they are both personal and fun. Not to mention the added benefit of being very easy on the budget. I like to give family members unique gifts. 

I’m always looking for ways to integrate genealogy into the lives of my family. Many times, they are interested, just not AS interested as I am😊

Charts make great study guides for my grandkids too. We’ve incorporated ancestors as examples for their history classes many times. Revolutionary war, slavery, Mayflower, Native Americans and much more.

I’ve used Charting Companion for years, so I’d like to show you a handful of cool charts that you can create to give as gifts along with a few tools to utilize for your own genealogy, including DNA. So, you’re giving gifts and getting something helpful for yourself too.

Charting Companion is meant to be utilized “on top of” or in conjunction with genealogy software on your computer such as RootsMagic, Family Tree Maker, Legacy Family Tree, or others. There is also a version for FamilySearch.

Getting Started

When you purchase Charting Companion, there’s a Quick Start Guide that pops right up that explains what you need to know.

Chart quick start.png

You’ll be creating your choice of 17 charts and reports in 3 clicks.

Gift Charts

Let’s take a look at some wonderful charts that make good gift options because you can print them on a standard size paper. I’d recommend higher quality 28-32 pound paper.

Ancestor Fan Chart

One of my all-time favorites is the Ancestor Fan Chart where you (or the gift recipient) is selected as the home person and appears in the middle.

chart ancestor fan.png

The colors are customizable, and you can generate this as a file or print it on your printer. You can even select the option for “embroider.”

This chart is also available as a complete circle.

I’ve done something a bit different. You’ll notice that several of my ancestors in this chart have middle names that look suspiciously like haplogroups. That’s because they are. This is a great way for me to keep track of which lines have and have not been tested.

Ancestor Fan X Chart

You can select the fan chart highlighting the X chromosome path to assist your DNA matching. I have one of these pinned to the wall by my desk.

chart ancestor x fan.png

You can read more about using these charts and the unique X inheritance path here. The fact that men only inherit an X chromosome from their mother means that your X matches only descend from a subset of your ancestors. This is EXTREMELY USEFUL information genealogically and this tool makes the common ancestor possibilities immediately visible.

This probably isn’t colorful enough to be a good gift, but it’s a great tool. I love the X fan chart!

Descendant Fan Chart

Another great gift is the Descendant Fan Chart.

chart descendant fan 2.png

In a Descendant Fan Chart, the ancestor is in the center, and all of the various descendants are displayed in the radiating circles. If I was giving this as a gift, I would make sure to select the correct number of generations for the recipient to be shown in the outer band.

There’s a handy preview option for all charts.

For both the ancestor and descendant fan charts, there’s an option to create embroidery instructions so you can have your chart embroidered on a shirt, bag or something else. I think the circle option would be absolutely stunning in the center of a quilt. (Hmmm…)

Dandelion Chart

Did you know there was such a thing as a Dandelion Chart? I didn’t.

Chart dandelion.png

I like this Dandelion chart because it shows the ancestors AND descendants of the selected ancestor in one attractive chart. It fits itself to size and it’s fun to watch the ancestors and descendants “slide” into place. I don’t know how to explain this – you’ll just have to watch.

Ancestor Chart

The Ancestor Chart allows you to select the colors, number of generations and so forth. This is what I typically think of as a pedigree chart, but this version is much more colorful. You can select which information to include in the boxes.

Chart ancestor.png

If you were going to give this chart as a gift, you would select the recipient to be the home person in the chart. You can also include photos and more.

Fractal Tree Chart

I didn’t know about Fractal Tree Charts either. This took me a minute to get used to.

chart fractal tree.png

I like this style because you can view many generations at once, with the colors helping to identify generations and who connects to whom. I really like this balanced chart.

Ancestor Book

Another wonderful gift, but one that isn’t frameable, is the Ancestor Book. You can also include your notes which would be invaluable to someone if they decided to become interested one day long in the future after your GEDCOM file is long gone.

Chart ancestor book.png

I’ve given things like this before as gifts in a 3 ring binder with a lovely family photo slid inside the clear sleeve on the front cover.

This prineted report would be wonderful to contribute to relevant libraries and archives for those of us who want to make sure our work outlives us.

Gifts for You

These next two features are gifts for you.

Mitochondrial Descendants

I want a mitochondrial DNA representative test for all of my ancestors. You don’t know what you don’t know and mitochondrial DNA has broken thought several brick walls. Don’t let anyone tell you otherwise or discourage you from testing.

I would like to find a living descendant of Catharina Schaeffer (c1780-c1826) who carries her mitochondrial DNA. Shameless plug – if this is you, I have a testing scholarship with your name on it!

Using the Descendant Chart, you can select for Mitochondrial DNA, and then the number of relevant generations to show. Clearly, I can’t show you all of the generations to current without compromising living people’s privacy, but you can see that all of the people with pink (females) or blue (males) in this descendant chart carry Catharine’s mitochondrial DNA.

chart mitochondrial

Click to enlarge

The males, of course, won’t pass mitochondrial DNA on to their descendants, but the females will – to daughters and sons both – so in the current generation, males and females can both test so long as they descend from Catharina directly through all females.

If you haven’t tested your mitochondrial DNA, or you find someone to test to represent one of your ancestors, you can purchase the full sequence mitochondrial DNA test here.

I LOVE this tool.

DNA Matrix

The DNA Matrix graphically displays relationships between people who have taken DNA tests and share DNA with each other.

Chart DNA Matrix.png

The DNA Matrix only works with Family Tree Maker software, so I can’t show you with my own data because I use a different program. The hypothetical example above is provided by Charting Companion.

In a nutshell, you download your DNA matches with segment informatoin from vendors where you have tested or transferred. Charting Companion then syncs your matches file with your Family Tree Maker (FTM) file and creates a chart showing relationships between you and your matches. You must add a DNA kit event in your FTM file in advance so that the software known to link to that person.

Here’s a description page provided by Progeny Software (developer of Charting Companion) along with an instructional YouTube video here.

To obtain results for the DNA Matrix, you’ll need DNA match files (NOT your raw DNA file) from vendors. Follow the instructions provided by Charting Companion. You must test AT 23andMe and Ancestry because they don’t accept inbound transfers. You can, however, transfer to other vendors who provide additional matches and segment information after testing at either 23andMe or Ancestry.

After downloading your raw data file (not to be confused with your matches file,) you can transfer your DNA for free to FamilyTreeDNA, MyHeritage and GedMatch. The transfer (and matching) is free at all 3 of these vendors, but the advanced tools require an unlock fee or subscription. I’ve written about how to create your own money-saving DNA Testing and Transfer Strategy here.

If you utilize the DNA Matrix, let me know what you think.

And More

There are several more charts available through Charting Companion too, but I think the one-page charts included here would make great frameable gifts. Of course, you’ll enjoy the workhorse charts and tools for your own genealogy.

You can download Charting Companion right now for $39.95 and be printing charts within a few minutes – literally.

Click here to take a look or purchase.

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Disclosure

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 Transfers

Genealogy Products and Services

Genealogy Research

Fun DNA Stuff

  • Celebrate DNA – customized DNA themed t-shirts, bags and other items

RootsTech Day 3 – Jewish DNA, Schmoozing and the Flapper Party

Day 3 at RootsTech was characterized by meeting lots of people, talking to several vendors and a party. Plus, I finally got to attend a session. Yes, really!

Ok, confession, I offered to help the presenter in order to garner a seat in the room. It was well worth a small amount of effort on my part to be able to see Bennett Greenspan, CEO and founder of Family Tree DNA present on The DNA of the Jewish People.

For those who don’t know, Bennett and his partner Max Blankfeld are the founding fathers of the direct to consumer genetic industry with the birth of Family Tree DNA 18 years ago.

I love Bennett’s DNA tie!

Even though Family Tree DNA hosts the annual conference for project administrators, Bennett has never presented at his own conference. I’ve heard him present once before, and he’s one of two speakers whose sessions I’d attend if they were talking about making mud pies. (Judy Russell is the other one.)

Bennett certainly didn’t let the audience down.

He began by telling folks how, just before his bar mitzva, his grandmother passed away. At the cemetery, his mother took his hand and walked him around, introducing him to the graves and family members buried there. Bennett didn’t realize how many relatives they had in Kansas.

Later that day, as family members arrived at the house to console the family, Bennett walked from person to person interviewing them about their memories of the “old country.” Bennett said, in their thick old-world accents, they told him about various family members, providing a link back in time.

Bennett then drew his first pedigree chart. I’m just amazed that he still HAS this chart. Thankfully, someone saved it. Little did he know how prophetic this would be or what staying power it would have. Nor could he have ever dreamt that his genealogy addiction was destined to someday change the world for all genealogists.

Indeed, Bennett was hooked at a very young age.

After Bennett sold his photographic supply company about 20 years ago, he became “too helpful” at home, offering to reorganize his wife’s pantry, and let’s just say that he got sent to his room. However, it just happens that in the room were his boxes of genealogy and well…history was about to be written.

In 1996 and 1997, Bennett had read two academic studies written about Y DNA in men. The first study was about the Jewish Cohen lineage, and the second was about the Jefferson males and Sally Hemmings.

Bennett’s Jewish family was torn apart by WWII and those who survived were scattered to the winds. This history makes genealogy particularly difficult for Jewish people, both the record destruction in Europe and the fact that the family remnants are so widely scattered and often lost to each other.

In Bennett’s case, he found a Nitz family in Argentina that claimed to be from the same village as his maternal grandmother’s Nitz family, and he wanted to verify that it was the same family by Y DNA testing – just like the Cohen study and the Jefferson/Hemmings case.

Bennett called Dr. Michael Hammer at the University of Arizona who was one of the authors on the Cohen paper, and whose lab had processed the samples. Dr. Hammer told Bennett that they only did academic processing, not for consumers. Bennett asked Dr. Hammer where he could turn to write a check and get an answer, but Dr. Hammer informed Bennett that such a company or location didn’t exist. Little did Dr. Hammer know that Bennett was an entrepreneur whose wife had banished him to timeout, in essence because he “retired” too young and was bored and underfoot.

Here’s what happened next!

I love to hear Bennett tell this story.

As a result, Family Tree DNA was born.

Bennett’s question about his Nitz line was indeed answered by a perfect Y DNA match. Indeed, it was the same family line!

Bennett then proceeded to search for Greenspan males, but that answer didn’t arrive for more than another decade. Bennett tested a lot of Greenspans, but it wasn’t until he met a Mr. Green at a conference that he found a match.

Jewish men fall into specific haplogroups or clusters, sometimes referred to as clans, on the Y DNA phylotree. The same is true for mtDNA, but that wasn’t the topic of his presentation.

Therefore, by testing a male, you can tell by his haplogroup and his matches whether or not he is Jewish.

The Ashkenazi and Sephardic Jews are very similar in their haplogroup breakdown and distribution, as are the rest of the non-Jewish residents of the Middle East.

They do, after all, originally descend from the same ancestors.

You can see the difference in the haplogroup spread between the people with Middle Eastern heritage, above, and the Ukraine, below.

These slides refute the theory that the Russian Khazars converted to Judaism en masse and subsequently migrated to eastern Europe. If this were the case, the DNA of the Ashkenazi Jews would be split much more closely along Ukrainian lines than Middle Eastern lines, and you can see for yourself which pie chart the Ashkenazi population more closely resembles.

The real message here is that thanks to DNA testing, we know that the sons of the Levant are far more alike than different – and that the Ashkenazi Jews are indeed from the Middle East and not from Russia.

Bennett’s family is from Eastern Europe, so the last thing he expected to discover was that his family was actually a displaced Sephardic line – but alas, through DNA matching and following the path of the DNA, that’s exactly what Bennett discovered.

As Bennett said, it rocked his world. No oral history reflected the 1492 expulsion of his family from Spain. This information gave him a new lens into the fate of his family when the Jews were displaced from Spain, penniless, their property confiscated, and leaving hurriedly to avoid death.

Bennett may never know their names, but he knows where they traveled on their long, perilous journey of over 2000 years from the Levant to Spain, then to Eastern Europe and finally into Argentina and the States.

I’ve summarized Bennett’s presentation significantly, but Bennett’s family history, revealed by Y DNA is a powerful story of family reunification.

Meet and Greet

In the Starbucks in the hotel, my 7th cousin, Laurel, found me and we talked about our common genealogy in Wilkes County, NC – the Sarah Rash (1748-1829) and Robert Shepherd (1739-1817) lines. If these are your lines too, please give a shout out.

I discovered that Laurel is going to be returning to Wilkes County for additional research, and she discovered that I know the location of the now-bulldozed-into-the-creek cemetery. Yes, we’re going to exchange information.

We’ve actually chatted a few times over the past few days and I’ve enjoyed it immensely.

On to the conference.

By day 3, I’ve finally developed a sense, at least somewhat, of the lay of the land. RootsTech is massive and the convention center is laid out anything but intuitively.

I walked by the theater in Lisa Louise Cooke’s genealogy Gems booth and caught a sentence where the presenter was explaining about cluster research, also known as FAN – friends and neighbors. In essence, people traveled in packs and you’ll tend to find them together. I wanted to agree vehemently, but did so silently and was very glad to see others listening attentively.

On down the aisle, I spotted an ad for DNA charts. As irritating as I find the ethnicity estimates, I must admit, these are really attractive.

However, I then spied the wall chart.

How fun is this? A gift maybe? How about adding the haplogroup for each person on the chart? So many possibilities. I can see a wall…

Speaking of walls, Living DNA created a “photo booth” in their booth, and David Nicholson, one of the Living DNA Founders and I hammed it up a bit. It’s always nice to meet the people who own and run the various companies. David and I have spoken and skyped previously, but never managed to be in the same place at the same time until now.

Most of the DNA vendors had long lines throughout the conference. That’s the good news, because no matter where you’ve tested, you’ll be getting new matches soon.

I stood in line to purchase a Living DNA kit for a friend, so I eaves-dropped anonymously.

Living DNA indicates that they provide a “3 in one” test, meaning autosomal ethnicity estimates (no matching yet, but anticipated this year), a mitochondrial haplogroup for your direct matrilineal line, and if you are a male, a Y DNA haplogroup for your paternal line.

For the sake of clarity, men receive 3, but women receive a “2 in one” since they have no Y chromosome.

I’m still hoping to be able to connect and have a few minutes to sit down and discuss Living DNA development for 2018.  Hopefully maybe tomorrow.

By now everyone should know that I find the full Y and mitochondrial DNA test, which provides you with actual test results and matching for those lines, extremely beneficial. I want to be very clear that knowing your Y and mtDNA haplogroup is very interesting and can be useful, but it’s not the same thing as receiving the actual results which can provide you with a significant history, along with matching.

Y and mitochondrial DNA is not an alternative to autosomal DNA testing, but these types of DNA tests supplement and enhance each other.

Of the major vendors, Family Tree DNA is the only vendor who offers that level of testing and has a data base for Y and mitochondrial DNA matching.

I’m so grateful that Family Tree DNA continues to offer these tests, although the autosomal market clearly outstrips the Y and mtDNA market. At trade shows, I think offering multiple types of tests is actually a detriment to Family Tree DNA, because they have to take time to educate their customers as to the different types of DNA that can be tested, ask about their goals, and then advise as to the appropriate test for the customer’s specific situation.

Above, in the Family Tree DNA booth, Bennett Greenspan is explaining the various types of tests to a potential customer.

Ran into Tom MacEntee again. It’s too bad he blends into the background and is so shy. Wait till you see what he’s wearing at the party later in the evening. OK, OK, I’ll shown you now.

Tom looks stunning in his tiara, doesn’t he!

Now, in the gratitude department – meet Dave Robison.

Dave introduced himself to me by saying something like, “You don’t know me, but you were such an inspiration to me when I was just getting started.” I was kind of taken aback, but then he continued by saying that he was somewhat doubtful of where he was “going,” so to speak, and that he had e-mailed me and I had answered him. From that, he decided that if I could do this, so could he, and lo and behold, he has, in spades.

Dave is now a professional genealogist who also donates a great deal of his time to several genealogical organizations. Please check out Dave’s story here.

Part of Dave’s trip to Salt Lake was to visit the Family History Library to perform some client work. On Saturday, I escaped to the library as well. (Don’t worry, you’re going along.) As luck would have it, we both found ourselves having lunch at the closest restaurant. Of course, we broke bread (or ate salad actually) together and had a lovely, lovely meal. I can’t wait to see Dave again.

Dave’s introduction moved me greatly. So often, we really never know the extent of the difference a kind word at the right time and place may make to someone.

I’m very grateful for Dave telling me, because it’s all too easy to be grouchy and tired when answering the 235th e-mail of the day.

I’m so pleased to have a new friend too.

Wandering on down the aisle, my eye was drawn to a ring that looked like it might be a helix. Could it be?

I do sometimes think I’m married to DNA.

Whoever thought you’d see the day when helix jewelry was available in a bead booth?

With earrings to match.

If you’re interested, I’m sure The Bead Farm would gladly ship.

Anyone watch Relative Race? BYU TV describes this show as, “With their own DNA as a roadmap, and $25,000 on the line, four couples must race coast-to-coast and discover a different relative every day.”

The season premier is March 4th!

Do they actually drive these brightly colored cars in the series? Obviously, I’ve never watched. Clue me in, someone…

Next, I had an amazing surprise.

Last summer, when Jim and I were in Europe chasing my ancestors across the continent, we met a lovely couple on the same journey. We enjoyed several meals together, parting ways and promising to keep in touch, with the best of intentions. However, life just got in the way, until today.

I looked up, and there stood my friend, Lisa Hunt. Of course, entirely out of context, I recognized her but for a moment, was somewhat confused. It’s a very long way from the Rhine River to Salt Lake City.

As it turns out, Lisa was at the conference hoping to meet up with a new cousin and stumbled across me! No, I’m not the cousin.

If you have a tree at Family Search, and you register for the conference, the app will search your tree and the trees of other attendees and tell you how many cousins you have at RootsTech, who they are and how you are related – with the idea that you can find each other. What fun!

And yes, Lisa did find her cousin!

One of the booths I noticed was the Society of Mayflower Descendants.

As luck would have it, Jim Brewster who presented at RootsTech (and works for Family Tree DNA) is my cousin through the William Brewster line. For those who don’t know, William Brewster is one of the Mayflower passengers. Ironically, I applied last week to join this society, right after I documented my line in order to join the Mayflower DNA Project at Family Tree DNA. Do you have any Mayflower ancestors?

I came to RootsTech with a list of vendors that I absolutely wanted to see and meet. Pierre Cloutier who wrote Charting Companion was one of those people. I’ve used this product for years to produce great charts and reports. It works with almost any genealogy software!

Here, Pierre’s explaining the McGuire Method to a visitor. I wasn’t quite sure how he could have implemented this methodology, so he kindly explained it to me. Charting companion now includes special mtDNA lineages displayed on charts, X chromosome inheritance as well as the new McGuire methodology.

If you’re trying to figure out where a DNA tester places in a group of other testers, the McGuire Method will be helpful, and Pierre has automated this methodology. Thank you, Pierre!

Flapper Party

Apparently, the MyHeritage After-Party has become a RootsTech tradition, even though this is only the third year.

I found more photos online of the party than of any other single conference related event last year, and maybe more than all vendors and sessions combined.

Who says genealogists are boring people?

Yes, indeed, the party this year was themed. Fortunately, you didn’t have to dress the part to attend, but many did. I also discovered, albeit too late, that Salt Lake City has a costume rental where you can rent and return. I’ll file that one away for future use! I wonder what they have in “DNA.”

The best part of this party was networking with others. I’ll introduce you to a few people you may know from their blogs and online presence.

Leah LePerle Larkin, who blogs as The DNA Geek, and I are cousins several times over through our Acadian lines. One day, when we have a breather, maybe we’ll actually figure out exactly how many times we’re related. Acadian lines are like that.

We’ve known each other online for years now, and finally had a chance to sit down at a table and actually talk. No, not at the party, earlier.

From left to right, front row, Angie Bush, genetic genealogist with ProGenealogists, Leah LaPerle Larkin, me. Rear, left to right, Rob Warthen and Richard Weiss with DNAadoption and DNAGedcom and Jony Perle of DNAPainter fame, peeking over the top.

Upon arrival, supplies were provided at a craft table to create hats and headbands. When you’re late, you get to celebrate your Native heritage by sticking some feathers in your hair. That was fine with me. However, my headband was too tight, so I dispensed with the headband and instead, liberated an orange feather centerpiece to use as a “parasol.” Hey, be creative and go big or stay home.

To be clear, Richard had not sprouted an orange bird on this head – that’s my parasol in my hand positioned on his shoulder.

Richard is a far more talented dancer than I am, but I had loads of fun anyway! This is one place where, thankfully, you don’t have to be good to have fun.

Jessica Taylor with Legacy Tree Genealogists, at left, with unknown people at right and a special friend. I’m sure there’s a story, I just don’t happen to know what it is!

Line dancing, disco lights and costumes.

A huge thank you to our host, Gilad Japhet, CEO and founder of MyHeritage.

Tomorrow, you’re going with me to visit the Family History Library! Never been there?  Neither have I!

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Disclosure

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 Transfers

Genealogy Services

Genealogy Research

Who Tests the X Chromosome?

Recently, someone asked which of the major DNA testing companies test the X chromosome and which ones use the X in matching. How does this difference influence the quality of our matches?

Vendor X in Download File Uses X in Matching X Included in Total cM Count
23andMe Yes Yes Yes
Family Tree DNA Yes Yes (if have a match on another chromosome) No
Ancestry Yes *No No
MyHeritage Yes No No
GedMatch N/A Separately No

*If Ancestry did utilize the X in matching, it wouldn’t benefit customers because Ancestry does not show segment information by chromosome.  In other words, no chromosome browser.

Family Tree DNA includes any size X match IF and only if the two people already match on a different chromosome.

GedMatch, of course, isn’t a vendor who does DNA testing, so they don’t provide download files.  They are solely on the receiving end.

X CentiMorgan Counts

Due to variations in the way vendors calculate matches and total cM counts, your mileage may vary a bit.

In other words, the 23andMe cM total, if an X match is involved, may be slightly more than a match between the same two people at Family Tree DNA, where the X match cM is not included in the cM total.

Conversely, you won’t show an X match with someone at Family Tree DNA if there isn’t also another segment on a different chromosome that matches.

In general, due to the thin spread of SNPs on the X chromosome, you will need, on average, a cM match that is twice as large as on other chromosomes to be considered of equal weight.

In other words, a 10 cM match on the X chromosome would only be genealogically equivalent to approximately a 5 cM match on any other chromosome.

X matches really can’t be evaluated by the same rules as other chromosomes due both to their SNP paucity and their inheritance path, which is why most vendors don’t include those segments in the total cM count.

X Matches

While including the X chromosome cM count is problematic, X matching can be a huge benefit because of the unique inheritance path of the X chromosome.

In the article, X Marks the Spot, we discussed the inheritance path of the X chromosome for both males and females. Females inherit an X chromosome from both father and mother, which recombines just like chromosomes 1-22.  However, men only inherit an X from their mother, because they inherit a Y from their father instead of the X.  Therefore, males will only inherit an X from their mother, and females will only inherit their father’s mother’s X chromosome.

Charting Companion software works with your genealogy software of choice to produce a lovely fan chart where the contributors of my X chromosome are charted in color, above. You can read more about Charting Companion here.

The great news is that if you and a match share a significant portion of the X chromosome, meaning more than 15 cM which reduces the likelihood of an identical by chance match, the common ancestor (on that segment) has to come from an ancestor in your direct X path.

I’m always excited to see with whom I share an X.  That piece of information alone helps me focus my ancestor detective efforts on a specific portion of my tree.

Some X segments can remain intact for generations and may be very old.  So don’t be surprised if the common ancestor of the X segment and another matching segment may not be the same ancestor.

Sorting by X

I wasn’t able to find a way to sort by X chromosome matches at 23andMe, but you can sort by the X at both Family Tree DNA and GedMatch.

At GedMatch, X matching shows on the one-to-many match page.  You can sort by either Total X cM or Largest X cM by using the up and down arrows, at right, below, in the X DNA columns.

After you identify an X match, be sure to run the X one-to-one match option to verify.

My GedMatch matches cause me to wonder if 23andMe is using a different reporting threshold for the X chromosome, because one of my matches at GedMatch is a close family member with no X match at 23andMe, but a total of 32 X cM and with a longest segment of 14 X cM at GedMatch.

That same individual matches me with the largest X segment of 14 cM at Family Tree DNA as well.

Family Tree DNA X Match Phasing

At Family Tree DNA, on your Family Finder matches page, just click on the X-Match header (at right, below) to bring all of your X matches to the top of your list.

If you have linked any kits of relatives to your tree, you will see numbers of phased kits on the maternal and paternal tabs with the red and blue male and female icons. In the example above, I have 3313 matches total, with 744 being paternal, 586 being maternal.

Next, click on the maternal or paternal tab to see only the people with X matches who match you on the  your maternal and paternal lines. Matches are automatically sorted into maternal and paternal “buckets” for you. Remember to check the size of the X match before deciding about relevance.

Who is your largest X match that you don’t already know?  Maybe you can find your common ancestor today.

Have fun!!!

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Disclosure

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 Transfers

Genealogy Services

Genealogy Research

Using X and Mitochondrial DNA Charts by Charting Companion

Charting Companion by Progeny Genealogy interfaces with many genealogy software programs to produce lovely charts and graphs not available within the genealogy software applications themselves. I first installed Charting Companion when I used PAF and was very glad to see that it interfaces with RootsMagic too, the software I switched to when PAF was no longer supported. RIP PAF🙁

Over the past couple years, Charting Companion has implemented DNA focused reports. I covered their first report, the X Ancestor Chart when it was first introduced, but they have since added mtDNA charts, and most recently X Descendant Charts. I love these reports and how useful they are to the genealogist.

It’s important to understand that both your mitochondrial DNA and the X chromosome have special inheritance paths and therefore, special uses for genetic genealogy research. I wrote about the X chromosome here and here.

The article 4 Kinds of DNA for Genetic Genealogy is a brief description of the various kinds of DNA testing available to genetic genealogists, and who can test for which kind.

X Chromosome Inheritance Path

In males, the X chromosome is only inherited from the mother, because the father gives the male a Y chromosome, which is what makes the male, male. In females, the father contributes his X chromosome to his daughter, as does her mother. However, the father only received an X from his mother – so you can see that the inheritance pattern for the X chromosome is not the same as other chromosomes where all children receive 50% of their inherited DNA from each parent.

Because of this unusual inheritance pattern, you can easily tell whether an autosomal match that shares an X chromosome could descend from the ancestor you think they might. If you’re a male and you think an X match comes through your father or one of his ancestors – think again, because it can’t.

Here’s my hand-drawn chart of the ancestors that portions of my X chromosome could have descended from.

X Chart0001

Now that I have Charting Companion, I no longer have to hand draw this chart. Charting Companion does it quickly and easily for me. And it’s much, MUCH neater!

x fan

The X chromosome is tested as part of an autosomal DNA test, but not all vendors report X matches. Ancestry does not provide information about the chromosomes where you match anyone, so at Ancestry, there is no way to know if you match someone on the X chromosome. Family Tree DNA’s Family Finder test does test for and report X chromosome matching and so does GedMatch if you upload your raw data files from any vendor.

Mitochondrial DNA Inheritance Path

Mitochondrial DNA is not passed to the children from males. Females pass their mitochondrial DNA to both genders of their children, but only females pass it on.

This pedigree chart below shows the Y and mitochondrial DNA inheritance path for a brother and sister. Both siblings received their mother’s mtDNA, which reaches back in time directly up the matrilineal line ONLY.

Y and mito

The great news is that since the mitochondrial DNA is never admixed with the father’s DNA, it’s a direct pipeline that informs us about the matrilineal line for hundreds and thousands of years back in time.

The bad news is that in order to find out about the mitochondrial DNA of another ancestor in your tree – meaning all of your ancestors that don’t have red circles in the chart above, you must find someone descended from a female through all females to the current generation, which can be a male. Testing for mitochondrial DNA is available through Family Tree DNA.

Let’s say you want to find out about the mitochondrial DNA of your father’s mother to fill in one of the haplogroups in your DNA pedigree chart. You would need to locate an individual to test who carries your father’s mother’s mitochondrial DNA. Your father can test, if he’s living and willing. If your father is deceased, and he had no siblings, and his mother is deceased with no siblings, you’re going to have to go on back up that tree until you find someone with living descendants who descend through only females to the current generation, which can include males.

Charting Companion makes finding those descendants easy.

Getting Started

You can purchase Charting Companion at this link.

After installing Charting Companion, which is painless (I had to install the latest upgrade for this article), Charting Companion opens the file you indicate, which is typically your production file for your genealogy software. You’ll select the person you want to be reflected as the source or center of your charts or reports in the yellow Name field, shown below. In my case, I selected Barbara Dreschel to be the person around whom the reports will center.

In case you’re wondering, “Babbit” was her nickname and J1c2f is her mitochondrial DNA haplogroup.  The only effective way I’ve discovered to maintain haplogroup information is as a middle name, so that’s what you’re seeing.

chart-drechsel

Next, you’ll select the type of report that you want to create.

You’ll want to click on the “Charts and Reports” tab and for the X chromosome charts, you’ll want to select either the Ancestor Charts, or the Descendant Charts.

chart companion

Net, you’ll select the X version, which is located under “color” because the proper people are colorized in pink and blue.

Ancestor chart options

Ancestor X Charts

Ancestor charts generally start with you and work their way back in time.   My X version shows which ancestors I inherited my X chromosome from. This can be very helpful when evaluating matches. In some cases, you cannot have a match to a particular person on the X chromosome from the particular line in question.

Ancestor charts come in two flavors, one is a traditional ancestor chart, the fan version shown earlier in this article, and the second version is a pedigree chart.

x pedigree 1

x pedigree 2

These charts make it easy to see who you could have received your X chromosome from – so X matches must be from the pink and blue colored ancestors and cannot be from ancestors whose boxes are not colored.

For example, if I match a descendant of John Y. Estes, located at the top of the pedigree chart, above, on the X chromosome, I know the common ancestor that I received the X DNA from is NOT John Y. Estes, because I couldn’t have inherited any X DNA from him. That’s easy to discern, because there is no coloration in John Y.’s box. So an X match to a descendant of John Y. Estes is not FROM John Y. Estes. It’s either a false match or the matching X chromosome is from another common ancestor. Of course, that doesn’t mean we both aren’t descended from John Y. Estes – it only means that our X match is not from John Y.  I wrote about false matches here.

When I receive an X match to someone and we’re trying to find a common ancestor, I suggest that my match print this same chart for themselves and that will help them determine which ancestors or ancestral lines we might potentially have in common.

Descendant X Charts

Recently Charting Companion announced a new tool, Descendant X Charts. On these charts, the ancestor is the focus and the descendants who inherited their X chromosome are colored either pink or blue. Part of the Descendant X Chart for Barbara Drechsel is shown below. You can click on any graphic to enlarge.

chart-descendant-drechsel

Descendant Charts look a little different than Ancestor Charts. Don’t be confused by the white box between Elnora Kirsch and her daughters. That’s just her husband, Curtis Benjamin Lore. While he contributes an X chromosome (with daughters) or doesn’t (with sons,) it’s not HIS X chromosome we’re tracking in this chart, it’s the X chromosome of Barbara Drechsel. Curtis would be shown either on his own ancestor chart, or you can create a Descendant X Chart for Curtis.

You might notice in this diagram that this family is particularly prone to not having children. Trying to find ANY DNA participants has been very challenging. However, when I do find them (fingers crossed) I’ll know immediately if they (and I) could possibly carry the X chromosome of Barbara Drechsel by looking at these charts. I’m someplace to the left on this chart, but off the edge of the graphic above.

My favorite Charting Companion charts are still the fan charts though, shown below, because they are compact and succinct and you can see everything on one chart on one page.

chart-descendant-fan

Mitochondrial DNA Charts

To find descendants who carry the mitochondrial DNA of any female, select the person whose mtDNA-carrying descendants you want to find. Then click on the Charts and Reports tab and select the Descendant Chart. You’ll then see various options at the top, where you’ll want to click on the Contents tab.

chart-mtdna-menu

Select Mitochondrial DNA. Note that you can also select the Y chromosome DNA, but that’s much more evident if you’re looking for a male, because the surname stays the same, so DNA testing candidates are generally rather obvious.

chart-mtdna-descendants

On the mtDNA Descendants Chart above, the people in pink and blue carry the mtDNA of Barbara Drechsel. The blue people, males, won’t pass it on to their offspring, but the pink people, females, will if they have offspring. You can see that many females in this family did not have children, so there are several dead ends for Barbara’s mtDNA, including one more daughter who is off of the right hand side of the page. On your computer, you can scroll and the printed reports allow you to overlap.

The Mitochondrial DNA Chart is a great tool to find out who carries the mitochondrial DNA of any ancestor.

Summary

I love tools that help people understand their DNA and how it’s useful to their genealogy. The X charts make seeing the X inheritance path so much easier than trying to explain in verbiage (or drawing by hand) – and provides an easy visual to quickly identify whether a particular ancestor could potentially be responsible for an X DNA match.

For mitochondrial DNA, the charting tool makes the task of finding appropriate descendants to test much easier. It can also work in reverse. If you want to know if a particular person is a candidate for testing for a specific ancestor’s mtDNA, it’s easy to see immediately if their box is colored pink or blue.

I especially love tools that are ubiquitous and run with almost any software package and that don’t require special plugins. Furthermore, I’m particularly enamored with vendors who listen to and take suggestions to heart from their customer base. No, this suggestion wasn’t mine, but the X Descendant Chart was implemented within a week of when it was suggested by a customer. Two weeks later, it was in production – and now all Charting Companion customers benefit. A big thank you to Pierre Clouthier at Progeny Genealogy.

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Disclosure

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 Transfers

Genealogy Products and Services

Genealogy Research

Fun DNA Stuff

  • Celebrate DNA – customized DNA themed t-shirts, bags and other items