Family Tree DNA’s Mitochondrial Haplotree

On September 27th, 2018 Family Tree DNA published the largest Y haplotree in the world, based on SNP tests taken by customers. Now, less than two weeks later, they’ve added an exhaustive mitochondrial DNA (mtDNA) public haplotree as well, making this information universally available to everyone.

Family Tree DNA’s mtDNA Haplotree is based on the latest version of the mtDNA Phylotree. The new Family Tree DNA tree includes 5,434 branches derived from more than 150,000 full sequence results from 180+ different countries of origin. Family Tree DNA‘s tree has SIX TIMES more samples than the Phylotree. Furthermore, Family Tree DNA only includes full sequence results, where Phylotree includes partial results.

This new tree is a goldmine! What does it provide that that’s unique? Locations – lots of locations!

The Official Phylotree

Unlike the Y DNA tree, which is literally defined and constructed by the genetic community, new mitochondrial DNA branches cannot be added to the official mitochondrial Phylotree by Family Tree DNA. Haplogroups, meaning new branches in the form of SNPs are added to the Y tree as new SNPs are discovered and inserted into the tree in their proper location. The mitochondrial DNA phylotree can’t be expanded by a vendor in that manner.

The official mitochondrial Phylotree is maintained at www.phylotree.org and is episodically updated. The most recent version was mtDNA tree build 17, published and updated in February 2016. You can view version history here.

Mitochondrial Phylogenic Tree Version 17

Version 17 of the official mitochondrial tree consists of approximately 5,400 nodes, or branches with a total of 24,275 samples uploaded by both private individuals and academic researchers which are then utilized to define haplogroup branches.

Individuals can upload their own full sequence results from Family Tree DNA, but they must be in a specific format. I keep meaning to write detailed instructions about how to submit your full sequence test results, but so far, that has repeatedly slipped off of the schedule. I’ll try to do this soon.

In a nutshell, download your FASTA file from Family Tree DNA and continue with the submission process here. The instructions are below the submission box, so scroll down.

In any case, the way that new branches are added to the phylotree is when enough new results with a specific mutation are submitted and evaluated, the tree will have a new branch added in the next version. That magic number of individuals with the same mutation was 3 in the past, but now that so many more people are testing, I’m not sure if that number holds, or if it should. Spontaneous mutations can and do happen at the same location. The Phylotree branches mean that the haplogroup defining mutations indicate a common ancestor, not de novo separate mutations. That’s why analysis has to be completed on each candidate branch.

How do Mitochondrial DNA Branches Work?

If you are a member of haplogroup J1c2f today, and a certain number of people in that haplogroup have another common mutation, that new mutation may be assigned the designation of 1, as in J1c2f1, where anyone in haplogroup J1c2f who has that mutation will be assigned to J1c2f1.

While the alternating letter/number format is very easy to follow, some problems and challenges do exist with the alternating letter/number haplogroup naming system.

The Name of the Game

The letter number system works fine if not many new branches are added, branches don’t shuffle and if the growth is slow. However, that’s not the case anymore.

If you recall, back in July of 2012, which is equivalent to the genetic dark ages (I know, right), the Y tree was also represented with the same type of letter number terminology used on the mitochondrial tree today.

For example, Y DNA haplogroup R-M269 was known as R1b1a2, and before that the same haplogroup was known as R1b1c. The changes occurred because so many new haplgroups were being discovered that a new sprout wasn’t added from time to time, but entire branches had to be sawed off and either discarded or grafted elsewhere. It became obvious that while the R1b1a2 version was nice, because it was visually obvious that R1b1a2a was just one step below R1b1a2, that long term, that format just wasn’t going to be able to work anymore. New branches weren’t just sprouting, wholesale shuffling was occurring. Believe it or not, we’re still on the frontier of genetic science.

In 2012, the change to the SNP based haplogroup designations was introduced by Family Tree DNA, and adopted within the community.

The ISOGG tree, the only tree that still includes the older letter/number system and creates extended letter number haplogroup names as new SNPs are added provides us with an example of how much the Y tree has grown.

You can see that the letter/number format haplogroups to the far right are 19 locations in length. The assigned SNP or SNPs associated with that haplogroup are shown as well. Those 19-digit haplogroup names are just too unwieldy, and new haplogroups are still being discovered daily.

It’s 2012 All Over Again

That’s where we are with mitochondrial DNA today, but unlike Y DNA naming, a vendor can’t just make that change to a terminal SNP based naming system because all vendors conform to the published Phylotree.

However, in this case, the vendor, Family Tree DNA has more than 6 times the number of full sequence mitochondrial results than the mitochondrial reference model Phylotree. If you look at the haplogroup projects at Family Tree DNA, you’ll notice that (some) administrators routinely group results by a specific mutation that is found within a named haplogroup, meaning that the people with the mutation form a subgroup that they believe is worthy of its own haplogroup subgroup name. The problem is that unless enough people upload their results to Phylotree, that subgroup will never be identified, so a new haplogroup won’t be added.

If the entire Family Tree DNA data base were to be uploaded to Phylotree, can you imagine how many new haplogroups would need to be formed? Of course, Family Tree DNA can’t do that, but individual testers can and should.

Challenges for Vendors

The challenge for vendors is that every time the phylotree tree is updated and a new version is produced, the vendors must “rerun” their existing tester samples against the new haplogroup defining mutations to update their testers’ haplogroup results.

In some cases, entire haplogroups are obsoleted and branches moved, so it’s not a simple matter of just adding a single letter or digit. Rearranging occurs, and will occur more and more, the more tests that are uploaded to Phylotree.

For example, in the Phylotree V17 update, haplogroup A4a1 became A1a. In other words, some haplogroups became entirely obsolete and were inserted onto other branches of the tree.

In the current version of the Phylotree, haplogroup A4 has been retired.

Keep in mind that all haplogroup assignments are the cumulative combination of all of the upstream direct haplogroups. That means that haplogroup A4a1, in the prior version, had all of the haplogroup defining mutations shown in bold in the chart below. In the V17 version, haplogroup A1a contains all of the mutations shown in bold red. You might notice that the haplogroup A4 defining mutation T16362C is no longer included, and haplogroup A4, plus all 9 downstream haplogroups which were previously dependent on T16362C have been retired. A4a1 is now A1a.

Taking a look at the mitochondrial tree in pedigree fashion, we can see haplogroup A4a1 in Build 15 from September 2012, below.

Followed by haplogroup A1a in the current Build 17.

Full Sequence Versus Chip Based Mitochondrial Testing

While Family Tree DNA tests the full sequence of their customers who purchase that level of testing, other vendors don’t, and these changes wreak havoc for those vendors, and for compatibility for customer attempting to compare between data bases and information from different vendors.

That means that without knowing which version of Phylotree a vendor currently uses, you may not be able to compare meaningfully with another user, depending on changes that occurred that haplogroup between versions. You also need to know which vendor each person utilized for testing and if that vendor’s mitochondrial results are generated from an autosomal style chip or are actually a full mitochondrial sequence test. Utilizing the ISOGG mtDNA testing comparison chart, here’s a cheat sheet.

Vendor No Mitochondrial Chip based haplogroup only mitochondrial Full Sequence mitochondrial
Family Tree DNA No Yes – V17
23andMe Yes – Build V7 No
Ancestry None
LivingDNA Yes – Build V17 No
MyHeritage None
Genographic V2 Yes – Build V16 No

Of the chip-based vendors, 23andMe is the most out of date, with V7 extending back to November of 2009. The Genographic Project has done the best job of updating from previous versions. LivingDNA entered the marketplace in 2016, utilizing V17 when they began.

Family Tree DNA’s mitochondrial test is not autosomal chip based, so they don’t encounter the problem of not having tested needed locations because they test all locations. They have upgraded their customers several times over the years, with the current version being V17.

Family Tree DNA’s mitochondrial DNA test is a separate test from their Family Finder autosomal test while the chip-based vendors provide a base-level haplogroup designation that is included in their autosomal product. However, for chip-based vendors, updating that information can be very challenging, especially when significant branch changes occur.

Let’s take a closer look.

Challenges for Autosomal Chip-Based Vendors Providing Mitochondrial Results

SNP based mitochondrial and Y DNA testing for basic haplogroups that some vendors include with autosomal DNA is a mixed blessing. The up side, you receive a basic haplogroup. The down aide, the vendor doesn’t test anyplace near all of the 16,569 mitochondrial DNA SNP locations.

I wrote in detail about how this works in the article, Haplogroup Comparisons Between Family Tree DNA and 23andMe. Since that time, LivingDNA has also added some level of haplogroup reporting through autosomal testing.

How does this work?

Let’s say that a vendor tests approximately 4000 mitochondrial DNA SNPs on the autosomal chip that you submit for autosomal DNA testing. First, that’s 4000 locations they can’t use for autosomal SNPs, because a DNA chip has a finite number of locations that can be utilized.

Secondly, and more importantly, it’s devilishly difficult to “predict” haplogroups at a detailed level correctly. Therefore, some customers receive a partial haplogroup, such as J1c, and some receive more detail.

It’s even more difficult, sometimes impossible, to update haplogroups when new Phylotree versions are released.

Why is Haplogroup Prediction and Updating so Difficult?

The full mitochondrial DNA sequence is 16,569 locations in length, plus or minus insertions and deletions. The full sequence test does exactly what that name implies, tests every single location.

Now, let’s say, by way of example, that location 10,000 isn’t used to determine any haplogroup today, so the chip-based vendors don’t test it. They only have room for 4000 of those locations on their chip, so they must use them wisely. They aren’t about to waste one of those 4000 spaces on a location that isn’t utilized in haplogroup determination.

Let’s say in the next release, V2, that location 10,000 is now used for just one haplogroup definition, but the haplogroup assignment still works without it. In other words, previously to define that haplogroup, location 9000 was used, and now a specific value at location 10,000 has been added. Assuming you have the correct value at 9,000, you’re still golden, even if the vendor doesn’t test location 10,000. No problem.

However, in V3, now there are new haplogroup subgroups in two different branches that use location 10,000 as a terminal SNP. A terminal SNP is the last SNP in line that define your results most granularly. In haplogroup J1c2f, the SNP(s) that define the f are my terminal SNPs. But if the vendor doesn’t test location 10,000, then the mutation there can’t be used to determine my terminal SNP, and my full haplogroup will be incomplete. What now?

If location 10,000 isn’t tested, the vendor can’t assign those new haplogroups, and if any other haplogroup branch is dependent on this SNP location, they can’t be assigned correctly either. Changes between releases are cumulative, so the more new releases, the further behind the haplogroup designations become.

Multiple problems exist:

  • Even if those vendors were to recalculate their customer’s results to update haplogroups, they can’t report on locations they never tested, so their haplogroup assignments become increasingly outdated.
  • To update your haplogroup when new locations need to be tested, the vendor would have to actually rerun your actual DNA test itself, NOT just update your results in the data base. They can’t update results for locations they didn’t test.
  • Without running the full mitochondrial sequence, the haplogroup can never be more current than the locations on the vendor’s chip at the time the actual DNA test is run.
  • No vendor runs a full sequence test on an autosomal chip. A full mitochondrial sequence test at Family Tree DNA is required for that.
  • Furthermore, results matching can’t be performed without the type of test performed at Family Tree DNA, because people carry mutations other than haplogroup defining mutations. Haplogroup only information is entertaining and can sometimes provide you with base information about the origins of your ancestor (Native, African, European, Asian,) but quickly loses its appeal because it’s not specific, can’t be used for matching and can’t reliably be upgraded.

The lack of complete testing also means that while Family Tree DNA can publish this type of tree and contribute to science, the other vendors can’t.

Let’s take a look at Family Tree DNA’s new tree.

Finding the Tree

To view the tree, click here, but do NOT sign in to your account. Simply scroll to the bottom of the page where you will see the options for both the Y DNA Haplotree and the mtDNA Haplotree under the Community heading.

Click on mtDNA Haplotree.

If you are a Family Tree DNA customer, you can view both the Y and mitochondrial trees from your personal page as well. You don’t have to have taken either the Y or mitochondrial DNA tests to view the trees.

Browsing the mtDNA Tree

Across the top, you’ll see the major haplogroups.

I’m using haplogroup M as an example, because it’s far up the tree and has lots of subgroups. Only full sequence results are shown on the tree.

The basic functionality of the new mitochondrial tree, meaning how it works, is the same as the Y tree, which I wrote about in the Family Tree DNA’s PUBLIC Y DNA Haplotree.

You can view the tree in two formats, countries or variants, in the upper left-hand corner. View is not the same thing as search.

When viewing the mitochondrial DNA phylotree by country, we see that haplogroup M has a total of 1339 entries, which means M and everything below M on the tree.

However, the flags showing in the M row are only for people whose full mitochondrial sequence puts them into M directly, with no subgroup.

As you can see, there are only 12: 6 people in Australia, and one in 5 other countries. These are the locations of the most distant known ancestor of those testers. If they have not completed the maternal Country of Origin on the Earliest Known Ancestor tab, nothing shows for the location.

Viewing the tree by variant shows the haplogroup defining mutations, but NOT any individual mutations beyond those that are haplogroup defining.

For each haplogroup, click on the three dots to the right to display the country report for that haplogroup.

The Country Report

The Country Report provides three columns.

The column titled Branch Participants M shows only the total of people in haplogroup M itself, with no upstream or downstream results, meaning excluding M1, M2, etc. Just the individuals in M itself. Be sure to note that there may be multiple pages to click through, at bottom right.

The second column, Downstream Participants – M and Downstream (Excluding other Letters) means the people in haplogroup M and M subclades. You may wonder why this column is included, but realize that branches of haplogroup M include haplogroups G, Q, C, Z, D and E. The middle column only includes M and subgroups that begin with M, without the others, meaning M, M10, M11 but not G, Q, etc.

Of course the final column, All Downstream Participants – M and Downstream (Including other Letters) shows all of the haplogroup M participants, meaning M and all subclades, including all other haplogroups beneath M, such as M10, G, Q, etc..

What Can I Do with This Information?

Unlike the companion Y tree DNA, since surnames change every generation for maternal lineages, there is no requirement to have multiple matching surnames on a branch to be displayed.

Therefore, every person who includes a location for a most distant known ancestor is included in the tree, but surnames are not.

I want to see, at a glance, where the other people in my haplogroup, and the haplogroups that are the “direct ancestral line” of mine are found today. Clusters may mean something genealogically or are at least historically important – and I’ll never be able to view that information any other way. In fact, before this tree was published, I wasn’t able to see this at all. Way to go Family Tree DNA!!

It’s very unlikely that I’ll match every person in my haplogroup – but the history of that haplogroup and all of the participants in that haplogroup are important to that historical lineage of my family. At one time, these people all shared one ancestor and determining when and where that person lived is relevant to my family story.

Searching for Your Haplogroup

I’m searching for haplogroup J1c2f by entering J1c2f in the “Go to Branch Name.”

There it is.

I can see that there are 17 people in Sweden, 13 in Norway, 5 in Germany, 3 in Russia, etc. What’s with the Scandinavian cluster? My most distant known ancestor was found in Germany. There’s something to be learned here that existing records can’t tell me!

The mother branch is J1c2 which shows the majority of individuals in Ireland followed by England. This probably suggests that while J1c2f may have been born in Scandinavia, J1c2 probably was not. According to the supplement to Dr. Doron Behar’s paper, A “Copernican” Reassessment of the Human Mitochondrial DNA tree from its Root, which provides ages for some mitochondrial DNA haplogroups:

Haplogroup How Old Standard Deviation Approximate Age Range in Years
J1c2 9762 2010 7,752 – 11,772
J1c2f 1926 3128 500 – 5,054

I happen to know from communicating with my matches that the haplogroup J1c2f was born more than 500 years ago because my Scandinavian mito-cousins know where their J1c2f cousin was then, and so do I. Mine was in Germany, so we know our common ancestor existed sometime before that 500 year window, and based on our mutations and the mutation tree we created, probably substantially before that 500 year threshold.

Given that J1c2, which doesn’t appear to have been born in Scandinavia is at least 7,700 years old, we can pretty safely conclude that my ancestor wasn’t in Scandinavia roughly 9,000 years ago, but was perhaps 2,000 years, ago when J1c2f was born. What types of population migration and movement happened between 2,000 and 9,000 years ago which would have potentially been responsible for the migration of a people from someplace in Europe into Scandinavia.

The first hint might be that in the Nordic Bronze Age, trade with European cultures became evident, which of course means that traders themselves were present. Scandinavian petroglyphs dating from that era depict ships and art works from as far away as Greece and Egypt have been found.

The climate in Scandinavia was warm during this period, but later deteriorated, pushing the Germanic tribes southward into continental Europe about 3000 years ago. Scandinavian influence was found in eastern Europe, and numerous Germanic tribes claimed Scandinavian origins 2000 years ago, including the Bergundians, Goths, Heruls and Lombards.

Hmmm, that might also explain how my mitochondrial DNA, in the form of my most distant known ancestor arrived in Germany, as well as the distribution into Poland.

Is this my family history? I don’t know for sure, but I do know that the clustering information on the new phylotree provides me with clustering data to direct my search for a historical connection.

What Can You Do?

  • Take a full mitochondrial DNA test. Click here if you’d like to order a test or if you need to upgrade your current test.
  • Enter your Earliest Known Ancestor on the Genealogy tab of your Account Information, accessed by clicking the “Manage Personal Information” beneath your profile photo on your personal page.

The next few steps aren’t related to actually having your results displayed on the phylotree, but they are important to taking full advantage of the power of testing.

  • While viewing your account information, click on the Privacy and Sharing tab, and select to participate in matching, under Matching Preferences.

  • Also consent to Group Project Sharing AND allow your group project administrators to view your full sequence matches so that they can group you properly in any projects that you join. You full sequence mutations will never be shown publicly, only to administrators.

Of course, always click on save when you’re finished.

  • Enter your most distant ancestor information on your Matches Map page by clicking on the “Update Ancestor’s Location” beneath the map.

  • Join a project relevant to your haplogroup, such as the J project for haplogroup J. To join a project, click on myProjects at the top of the page, then on Join Projects.

  • To view available haplogroup projects, scroll down to the bottom of the screen that shows you available projects to join, and click on the letter of your haplogroup in the MTDNA Haplogroup Projects section.

  • Locate the applicable haplogroup, then click through to join the project.

These steps assure that you’ve maximized the benefits of your mitochondrial results for your own research and to your matches as well. Collaborative effort in completing geographic and known ancestor information means that we can all make discoveries.

The article, Working with Mitochondrial DNA Results steps you through you all of the various tools provided to Family Tree DNA testers.

Now, go and see who you match, where your closest matches cluster, and on the new mtDNA Haplotree, what kind of historical ancestral history your locations may reveal. What’s waiting for you?

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Standard Disclosure

This standard disclosure appears at the bottom of every article in compliance with the FTC Guidelines.

I provide Personalized DNA Reports for Y and mitochondrial DNA results for people who have tested through Family Tree DNA. I provide Quick Consults for DNA questions for people who have tested with any vendor. I would welcome the opportunity to provide one of these services for you.

Hot links are provided to Family Tree DNA, where appropriate. If you wish to purchase one of their products, and you click through one of the links in an article to Family Tree DNA, or on the sidebar of this blog, I receive a small contribution if you make a purchase. Clicking through the link does not affect the price you pay. This affiliate relationship helps to keep this publication, with more than 900 articles about all aspects of genetic genealogy, free for everyone.

I do not accept sponsorship for this blog, nor do I write paid articles, nor do I accept contributions of any type from any vendor in order to review any product, etc. In fact, I pay a premium price to prevent ads from appearing on this blog.

When reviewing products, in most cases, I pay the same price and order in the same way as any other consumer. If not, I state very clearly in the article any special consideration received. In other words, you are reading my opinions as a long-time consumer and consultant in the genetic genealogy field.

I will never link to a product about which I have reservations or qualms, either about the product or about the company offering the product. I only recommend products that I use myself and bring value to the genetic genealogy community. If you wonder why there aren’t more links, that’s why and that’s my commitment to you.

Thank you for your readership, your ongoing support and for purchasing through the affiliate link if you are interested in making a purchase at Family Tree DNA, or one of the affiliate links below:

Affiliate links are limited to:

Family Tree DNA’s PUBLIC Y DNA Haplotree

It’s well known that as a result of Big Y testing that Family Tree DNA has amassed a huge library of Y DNA full sequence results that have revealed new SNPs, meaning new haplotree branches, for testers. That’s how the Y haplotree is built. I wrote about this in the article, Family Tree DNA Names 100,000 New Y DNA SNPs.

Up until now, the tree was only available on each tester’s personal pages, but that’s not the case anymore.

Share the Wealth

Today, Family Tree DNA has made the tree public. Thank you, thank you, THANK YOU Family Tree DNA.

To access the tree, click here, but DON’T sign in. Scroll to the bottom of the page. Keep scrolling, and scrolling…until you see the link under Community that says “Y-DNA Haplotree.” Click there.

The New Public Haplotree

The new public haplotree is amazing.

This tree isn’t just for people who took the Big Y test, but includes anyone who has a haplogroup confirming SNP OR took the Big Y test. Predicted haplogroups, of course, aren’t included.

Each branch includes the location of the most recent known ancestor of individuals who carry that terminal SNP, shown with a flag.

The branches are color coded by the following:

  • Light blue = haplogroup root branches
  • Teal or blue/green = branches with no descendants
  • Dark blue = branches that aren’t roots and that do have at least one descendant branch

The flag location is determined by the most distant known ancestor, so if you don’t have a “Most Distant Known Ancestor” completed, with a location, please, please, complete that field by clicking on “Manage Personal Information” beneath your profile picture on your personal page, then on Genealogy, shown below. Be sure to click on Save when you’re finished!

View Haplotree By

Viewing the haplotree is not the same as searching. “View by” is how the tree is displayed.

Click on the “View By” link to display the options: country, surnames or variant.

You can view by the country (flags), which is the default, the surname or the variants.

Country view, with the flags, is the default. Surname view is shown below.

The third view is variant view. By the way, a variant is another word for SNP. For haplogroup R-M207, there are 8,202 variants, meaning SNPs occurring beneath, or branches.

Reports

On any of the branch links, you’ll see three dots at the far right.

To view reports by country or surname, click on the dots to view the menu, then click on the option you desire.

Country statistics above, surname below. How cool is this!

Searching

The search function is dependent on the view currently selected. If you are in the surname view, then the search function says “Search by Surname” which allows you to enter a surname. I entered Estes.

If I’m not currently on the haplogroup R link, the system tells me that there are 2 Estes results on R. If I’m on the R link, the system just tells me how many results it found for that surname on this branch and if there are others on other branches.

The tree then displays the direct path between R-M207 (haplogroup R root) and the Estes branch.

…lots of branches in-between…

The great thing about this is that I can now see the surnames directly above my ancestral surname, if they meet the criteria to be displayed.

Display criteria is that two people match on the same branch AND that they both have selected public sharing. Requiring two surnames per branch confirms that result.

If you want to look at a specific variant, you can enter that variant name (BY490) in the search box and see the surnames associated with the variant. The click on “View by” to change the view from country (maps) to surnames to variants.

Change from country to surname.

And from surname to variants.

What geeky fun!!!

Go to Branch Name

If you want to research a specific branch, you can go there directly by utilizing the “Go to Branch Name” function, but you must enter the haplogroup in front of the branch name. R-BY490 for example.

When you’re finished with this search, REMOVE THE BRANCH NAME from the search box, if you’re going to do any other searches, or the system thinks you’re searching within that branch name.

My Result Isn’t Showing

In order for your results to be included on the tree, you must have fulfilled all 3 of these criteria:

  • Taken either a SNP or Big Y test
  • Opted in for public sharing
  • More than one result for that branch with the same exact surname

If you think your results should be showing and they aren’t, check your privacy settings by clicking the orange “Manage Personal Information” under your profile picture on your main page, then on the Privacy and Sharing tab.

Still not showing? See if you match another male of the same surname on the Big Y or SNP test at the same level.

If your surname isn’t included, you can recruit testers from that branch of your family.

How Can I Use This?

I’m like a kid with a new toy.

If any of your family surnames are rather unique, search to see if they are on the tree.

Hey look, my Vannoy line is on haplogroup I! Hmmm, clear the schedule, I’m going to be busy all day!

Every haplogroup has a story – and that story belongs to the men, and their families, who carry that haplogroup! I gather the haplogroups for each of my family surnames and this public tree just made this task much, MUCH easier.

Discovering More

If the testers have joined the appropriate surname project, you may also be able to find them in that project to see if they descend from a common line with you. To check and see, click here and then scroll down to the “Search Surname” section of the main Family Tree DNA webpage and enter the surname.

You can see if there is a project for your surname, and if not, your surname may be included in other projects.

Click on any of those links to view the project or contact the (volunteer) project administrators.

Want to search for another surname, the project search box is shown at the right in this view.

What gems can you find?

Want to Test?

If you are a male and you want to take the Big Y test or order a haplogroup confirming SNP, or you are a female who would like to sponsor a test for a male with a surname you’re interested in, you can purchase the Big Y test, here. As a bonus, you will also receive all of the STR markers for genealogical comparison as well.

Wonder what you can learn? You will be searching for matches to other males with the same surname. You can learn about your history. Confirm your ancestral line. Learn where they came from. You can help the scientific effort and contribute to the tree. For more information, read the article, Working with Y DNA – Your Dad’s Story.

Have fun!!!

_____________________________________________________________________

Standard Disclosure

This standard disclosure appears at the bottom of every article in compliance with the FTC Guidelines.

I provide Personalized DNA Reports for Y and mitochondrial DNA results for people who have tested through Family Tree DNA. I provide Quick Consults for DNA questions for people who have tested with any vendor. I would welcome the opportunity to provide one of these services for you.

Hot links are provided to Family Tree DNA, where appropriate. If you wish to purchase one of their products, and you click through one of the links in an article to Family Tree DNA, or on the sidebar of this blog, I receive a small contribution if you make a purchase. Clicking through the link does not affect the price you pay. This affiliate relationship helps to keep this publication, with more than 900 articles about all aspects of genetic genealogy, free for everyone.

I do not accept sponsorship for this blog, nor do I write paid articles, nor do I accept contributions of any type from any vendor in order to review any product, etc. In fact, I pay a premium price to prevent ads from appearing on this blog.

When reviewing products, in most cases, I pay the same price and order in the same way as any other consumer. If not, I state very clearly in the article any special consideration received. In other words, you are reading my opinions as a long-time consumer and consultant in the genetic genealogy field.

I will never link to a product about which I have reservations or qualms, either about the product or about the company offering the product. I only recommend products that I use myself and bring value to the genetic genealogy community. If you wonder why there aren’t more links, that’s why and that’s my commitment to you.

Thank you for your readership, your ongoing support and for purchasing through the affiliate link if you are interested in making a purchase at Family Tree DNA, or one of the affiliate links below:

Affiliate links are limited to:

 

 

 

 

Mitochondrial DNA Build 17 Update at Family Tree DNA

I knew the mitochondrial DNA update at Family Tree DNA was coming, I just didn’t know when. The “when” was earlier this week.

Take a look at your mitochondrial DNA haplogroup – it maybe different!

Today, this announcement arrived from Family Tree DNA.

We’re excited to announce the release of mtDNA Build 17, the most up-to-date scientific understanding of the human genome, haplogroups and branches of the mitochondrial DNA haplotree.

As a result of these updates and enhancements—the most advanced available for tracing your direct maternal lineage—some customers may see a change to their existing mtDNA haplogroup. This simply means that in applying the latest research, we are able to further refine your mtDNA haplogroup designation, giving you even more anthropological insight into your maternal genetic ancestry.

With the world’s largest mtDNA database, your mitochondrial DNA is of great value in expanding the overall knowledge of each maternal branch’s history and origins. So take your maternal genetic ancestry a step further—sign in to your account now and discover what’s new in your mtDNA!

This is great news. It means that your haplogroup designation is the most up to date according to Phylotree.

I’d like to take this opportunity to answer a few questions that you might have.

What is Phylotree?

Phylotree is, in essence, the mitochondrial tree of humanity. It tracks the mutations that formed the various mutations from “Mitochondrial Eve,” the original ancestor of all females living today, forward in time…to you.

You can view the Phylotree here.

For example, if your haplogroup is J1c2f, for example, on Phylotree, you would click on haplogroup JT, which includes J. You would then scroll down through all the subgroups to find J1c2f. But that’s after your haplgroup is already determined. Phylotree is the reference source that testing companies use to identify the mutations that define haplogroups in order to assign your haplogroup to you.

It’s All About Mutations

For example, J1c2f has the following mutations at each level, meaning that each mutation(s) further defines a subgroup of haplogroup J.

As you can see, each mutation(s) further refines the haplogroup from J through J1c2f. In other words, if the person didn’t have the mutation G9055A, they would not be J1c2f, but would only be J1c2. If new clusters are discovered in future versions of Phylotree, then someday this person might be J1c2f3z.

Family Tree DNA provides an easy reference mutations chart here.

What is Build 17?

Research in mitochondrial DNA is ongoing. As additional people test, it becomes clear that new subgroups need to be identified, and in some cases, entire groups are moved to different branches of the tree. For example, if you were previously haplogroup A4a, you are now A1, and if you were previously A4a1 you are now A1a.

Build 17 was released in February of 2016. The previous version, Build 16, was released in February 2014 and Build 15 in September of 2012. Prior to that, there were often multiple releases per year, beginning in 2008.

Vendors and Haplogroups

Unfortunately, because some haplogroups are split, meaning they were previously a single haplogroup that now has multiple branches, a haplogroup update is not simply changing the name of the haplogroup. Some people that were previously all one haplogroup are now members of three different descendant haplogroups. I’m using haplogroup Z6 as an example, because it doesn’t exist, and I don’t want to confuse anyone.

Obviously, the vendors can’t just change Z6 to Z6a, because people that were previously Z6 might still be Z6 or might be Z6a, Z6b or Z6c.

Each vendor that provides haplogroups to clients has to rerun their entire data base, so a mitochondrial DNA haplogroup update is not a trivial undertaking and requires a lot of planning.

For those of you who also work with Y DNA, this is exactly why the Y haplotree went from haplogroup names like R1b1c to R-M269, where the terminal SNP, or mutation furthest down the tree (that the participant has tested for) is what defines the haplogroup.

If that same approach were applied to mitochondrial DNA, then J1c2f would be known as J-G9055A or maybe J-9055.

Why Version Matters

When comparing haplogroups between people who tested at various vendors, it’s important to understand that they may not be the same. For example, 23andMe, who reports a haplogroup prediction based not on full sequence testing, but on a group of probes, is still using Phylotree Build 12 from 2011.

Probe based vendors can update their client’s haplogroup to some extent, based on the probes they use which test only specific locations, but they cannot fully refine a haplogroup based on new locations, because their probes never tested those locations. They weren’t known to be haplogroup defining at the time their probes were designed. Even if they redefine their probes, they would have to rerun the actual tests of all of their clients on the new test platform with the new probes.

Full sequence testing at Family Tree DNA eliminates that problem, because they test the entire mitochondria at every location.

Therefore, it’s important to be familiar with your haplogroup, because you might match someone it doesn’t appear that you match. For example, our haplogroup A4a=A1 example. At 23andMe the person would still be A4a but at Family Tree DNA they would be A1.

If you utilize MitoSearch or if you are looking at mtDNA haplogroups recorded in GedMatch, for example, be aware of the source of the information. If you are utilizing other vendors who provide haplogroup estimates, ask which Phylotree build they are using so you know what to expect and how to compare.

Knowing the history of your haplogroup’s naming will allow you to better evaluate haplogroups found outside of Family Tree DNA matchs.

Build History

You can view the Phylotree Update History at this link, but Built 17 information is not yet available. However, since Family Tree DNA went from Built 14 to Build 17, and other vendors are further behind, the information here is still quite relevant.

Growth

If you’re wondering how much the tree grew, Build 14 defined 3550 haplogroups and Built 17 identified 5437. Build 14 utilized and analyzed 8,216 modern mitochondrial sequences, reflected in the 2012 Copernicus paper by Behar et al. Build 17 utilized 24,275 mitochondrial sequences. I certainly hope that the authors will update the Copernicus paper to reflect Build 17. Individuals utilizing the Copernicus paper for haplogroup aging today will have to be cognizant of the difference in haplogroup names.

Matching

If your haplogroup changed, or the haplogroup of any of your matches, your matches may change. Family Tree DNA utilizes something called SmartMatching which means that they will not show you as a match to someone who has taken the full sequence test and is not a member of your exact haplogroup. In other words, they will not show a haplogroup J1c2 as a match to a J1c2f, because their common ancestors are separated by thousands of years.

However, if someone has only tested at the HVR1 or HVR1+HVR2 (current mtDNA Plus test) levels and is predicted to be haplogroup J or J1, and they match you exactly on the locations in the regions where you both tested, then you will be shown as a match. If they upgrade and are discovered to be a different haplogroup, then you will no longer be shown as a match at any level.

Genographic Project

If you tested with the Genographic Project prior to November of 2016, your haplogroup may be different than the Family Tree DNA haplogroup. Family Tree DNA provided the following information:

The differences can be caused by the level of testing done, which phase of the Genographic project that you tested, and when.

  • Geno 1 tested all of HVR1.
  • Geno 2 tested a selection of SNPs across the mitochondrial genome to give a more refined haplogroup using Build 14.
  • Geno 2+ used an updated selection of SNPs across the mitochondrial genome using Build 16.

If you have HVR1 either transferred from the Genographic Project or from the FTDNA product mtDNA, you will have a basic, upper-level haplogroup.

If you tested mtDNA Plus with FTDNA, which is HVR1 + HVR2, you will have a basic, upper-level haplogroup.

If you tested the Full Mitochondrial Sequence with Family Tree DNA, your haplogroup will reflect the full Build 17 haplogroup, which may be different from either the Geno 2 or Geno 2+ haplogroup because of the number and selection of SNPs tested in the Genographic Project, or because of the build difference between Geno 2+ and FTDNA.

Thank You

I want to say a special thank you to Family Tree DNA.

I know that there is a lot of chatter about the cost of mitochondrial DNA testing as compared to autosomal, which is probe testing. It’s difficult for a vendor to maintain a higher quality, more refined product when competing against a lower cost competitor that appears, at first glance, to give the same thing for less money. The key of course is that it’s not really the same thing.

The higher cost is reflective of the fact that the full sequence mitochondrial test uses different technology to test all of the 16,569 mitochondrial DNA locations individually to determine whether the expected reference value is found, a mutation, a deletion or an insertion of other DNA.

Because Family Tree DNA tests every location individually, when new haplogroups are defined, your mitochondrial DNA haplogroup can be updated to reflect any new haplogroup definition, based on any of those 16,569 locations, or combinations of locations. Probe testing in conjunction with autosomal DNA testing can’t do this because the nature of probe testing is to test only specific locations for a value, meaning that probe tests test only known haplogroup defining locations at the time the probe test was designed.

So, thank you, Family Tree DNA, for continuing to test the full mitochondrial sequence, thank you for the updated Build 17 for refined haplogroups, and thank you for answering additional questions about the update.

Testing

If you haven’t yet tested your mitochondrial DNA at the full sequence level, now’s a great time!

If you have tested at the HVR1 or the HVR1+HVR2 levels, you can upgrade to the full sequence test directly from your account. For the next week, upgrades are only $99.

There are two mtDNA tests available today, the mtPlus which only tests through the HVR1+HVR2 level, or about 7% of your mitochondrial DNA locations, or the mtFull Sequence that tests your entire mitochondria, all 16,569 locations.

Click here to order or upgrade.