From Diahan Southard, Your DNA Guide here at Genealogy Gems: DNA testing is one of the most personal ways to get involved in your family history. You have DNA from your parents, who have DNA from their parents, and so it goes, back into your greats and great-greats. The technology of genetic genealogy is all about tapping into that DNA record and pulling out information that might be useful in your family history. DNA can do this for you in two ways:
First, it connects you to places. These are places where your ancestors came from a hundred, a thousand, or tens of thousands of years ago.
Second, it connects you to people. These people are your genetic cousins, other living people who have taken the same DNA test that you took. The similarities in your DNA tell you that you share a common ancestor. You can then examine the pedigree of your match and work with them to help verify your family history, or give you new ideas about who your ancestors might be.
Types of DNA Tests for Family History
You have three choices of DNA tests, each with its own unique purpose.
YDNA – Essentially, if you want to know about a male ancestor, you need to find a direct male descendant to be tested. So if I want to know about my 3X great grandfather Morris Mitchell, I need to find Morris’s son’s son’s son, etc. until I find a living male with the Mitchell surname who can be tested on the Y chromosome DNA (mtDNA) test at Family Tree DNA.
mtDNA – If I want to know about a female ancestor, let’s say Mary West, I need to find Mary’s daughter’s daughter’s daughter’s etc. child (male or female) to take the mitochondrial DNA (mtDNA) from Family Tree DNA.
Autosomal DNA – For any ancestor, male or female, who is fewer than 5 generations from you, you can take the autosomal DNA test at either Family Tree DNA, AncestryDNA, 23andMe, or MyHeritage to find out more about that individual. Remember with the autosomal DNA that you always want to test the oldest generation first. So anyone who does not have both of their parents living should take the autosomal DNA test.
Companies that can Test DNA for Family History
There are several companies that test DNA for family history including:
Each of these companies is offering a very similar kind of test, but each has their own unique tools and databases. Decide which company you want to test with by evaluating things like:
their website accessibility
their company goals
and especially the size of their database
You can see a table comparing these companies here. The MyHeritage test is new, and is not on the chart yet, but will be soon.
Great (DNA) Expectations
The best thing you can do when setting out on your genetic genealogy journey is set good expectations. You can expect that the test will document the personal genetics of the person who takes it. By so doing, you are creating another genealogy record that will last for generations. This test will link you to your ancestors via your cousins. That means that you may take the test looking for ancestors, but what you get are cousins. It will take traditional genealogy work to turn those cousin connections into ancestral connections. Above buy prescription medicine overseas all, expect that this is a growing industry, and what we know today is different than what we will know tomorrow, so enjoy the journey!
DNA Resources
There are several comprehensive books on Genetic Genealogy out there. However, for the layman who just wants to understand their DNA test results and get some additional value from them, an entire book full of scientific explanations can be overwhelming and daunting. The following email is one we receive regularly:
Could you direct me to an understandable publication which explains dna results in layman’ terms ?
Thank you
Anne B.
Genetic Genealogy for the Layman
From Lisa Louise Cooke, host of The Genealogy Gems Podcast: I put myself in the category of “layman” when it comes to understanding DNA test results. And that’s why when I met DNA expert Diahan Southard at a genealogy conference, I immediately invited her to join Genealogy Gems. Diahan’s enthusiasm is contagious, and her ability to explain genetic genealogy to the layman is second to none!
I encouraged Diahan to immediately get to work putting her easy-to-follow explanations into a new series of quick reference guides. Genealogy Gems Publications is proud to publish her wonderful series of DNA quick reference guides for understanding your DNA results in plain language, and helping you get the most out of the investment you made in testing.
Start Here to Jump into Using DNA for Genealogy
Here’s a link to our DNA videos on YouTube with the author of the guides, Diahan Southard. As you will see, she has a ton of enthusiasm for helping the layman understand and get the most out of their DNA!
Diahan has a regular segment on my free Genealogy Gems Podcast where she answers your questions and provides invaluable insights into the latest in genetic genealogy. You can also find the complete archive of DNA articles at Genealogy Gems by clicking here. The most recent will appear first and then scroll down to read through the past articles.
For those who have tested with Ancestry DNA
If you took the Ancestry test, I would definitely recommend the following guides:
The beauty of the DNA quick reference guide series is that you can mix and match the guides to perfectly suit the testing you have done. We’ve published Diahan’s guides that delve into the testing companies FamilyTreeDNA and 23andMe, as well as the other tests available such as Mitochondrial (for your maternal line – both men and women can take this test) and YDNA (for your paternal line – only men take this test.)
Take Your DNA Test Results to the Next Level
If you’ve already tested and feel like you have a good foundation, then I highly recommend Diahan’s Advanced DNA Bundle. It will take your DNA test results to the next level by instructing you on the heart of what matters in plain English.
DNA in the News
As of March 28, 2017, AncestryDNA customers can see if their ancestors belonged to about 300 different Genetic Communities, small migratory groups that can be identified by DNA. In the next free Genealogy Gems podcast episode #202, you will learn more about it straight from Ancestry’s Chief Scientific Officer, Catherine Ball. For more information on Genetic Communities, watch the video below:
Lisa shares her experiences Down Under in Australia
Enjoy Lisa’s exclusive RootsTech 2018 interview with Findmypast CEO Tamsin Todd;
Military Minutes contributor Michael Strauss shines a spotlight on women who have served in the U.S. military;
Your DNA Guide Diahan Southard introduces the MyHeritage chromosome browser; and
Genealogy Gems Premium membership gets its biggest boost ever.
NEWS: ROOTSTECH 2018 RECAP
Click here to watch the short RootsTech 2018 official recap video.
NEWS: GENEALOGY GEMS PREMIUM eLEARNING
Update: The Companion Guidebook has been discontinued.
Lisa Louise Cooke uses and recommends RootsMagic family history software. From within RootsMagic, you can search historical records on FamilySearch.org, Findmypast.com and MyHeritage.com.
Keep your family history research, photos, tree software files, videos and all other computer files safely backed up with Backblaze, the official cloud-based computer backup system for Lisa Louise Cooke’s Genealogy Gems. Learn more at https://www.backblaze.com/Lisa.
To learn more about Legacy Tree services and its research team, visit www.legacytree.com. Exclusive Offer for Genealogy Gems readers: Receive $100 off a 20-hour research project using code GGP100. (Offer may expire without notice.)
MILITARY MINUTES: CELEBRATING WOMEN IN U.S. MILITARY HISTORY
Military Minutes with Michael Strauss
Click here to see the full article (and plenty of images!) on the Genealogy Gems website.
INTERVIEW: TAMSIN TODD AND BEN BENNETT, FINDMYPAST.COM
Findmypast.com is the Genealogy Giant best known for its deep, unparalleled historical record content for England, Scotland, Ireland and Wales.
Tamsin Todd is the Chief Executive Officer of Findmypast.com. She “has worked in the travel, retail and technology sectors, and brings with her a track record of leading successful growth businesses. She spent the early part of her career at Amazon and then Microsoft, where she led the introduction of ecommerce and search products into the UK and Europe. This was followed by stints as Head of Ecommerce at Betfair, and Managing Director of TUI-owned Crystal Ski Holidays. She joins Findmypast from Addison Lee, where she was Chief Customer Officer of Europe’s largest car service company. Tamsin lives in London with her family, and is Digital Trustee of the Imperial War Museums.”
Ben Bennett is Executive Vice President, North America and International at Findmypast.com, “focused on helping families stay connected in the United States and other markets across the globe.”
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YOUR DNA GUIDE: MYHERITAGE CHROMOSOME BROWSER
Just last year, if you had asked me if I thought anyone could catch AncestryDNA in their race to own the genetic genealogy market, I would have been skeptical. However, it is clear that MyHeritage intends to be a contender, and they are quickly ramping up their efforts to gain market share and your confidence.
MyHeritage began 2018 by making a much-needed change to their DNA matching algorithm, which had some errors in it. They were able to adjust it, and now it is humming right along, telling our second cousins from our fourth. Another development, launched in February, is the addition of a Chromosome Browser.
THE NEW MYHERITAGE DNA CHROMOSOME BROWSER
Much like you would browse the library shelves for the perfect book, or browse through the sale rack for a great bargain, you can use a Chromosome Browser to look through your chromosomes for the pieces of DNA you share with your genetic cousins.
Chromosome Browsers can be everything from a fun way to review your genetic genealogy results, to a tool to assist in determining how you are related to someone else. Let’s go over three tips to help you make use of this new tool.
NAVIGATING TO THE CHROMOSOME BROWSER
There are actually two different kinds of Chromosome Browsers in MyHeritage: one to view only the segments you share with one match (the One-to-One Browser), and a browser where you can see the segments shared with multiple matches (the One-to-Many Browser).
To get to the One-to-One Browser, head over to your match page and find a cousin for whom you would like to see your shared DNA segments. Click on Review DNA Match, then scroll down past all the individual match information, past the Shared Matches and Shared Ethnicities until you see the Chromosome Browser.
USING THE ONE-TO-MANY CHROMOSOME BROWSER
To find the One-to-Many Chromosome Browser, you can use the main DNA navigation menu at the top of the MyHeritage homepage. Click on DNA, then on Chromosome Browser, as shown below.
In the One-to-Many Chromosome Browser you can compare yourself, or any account you manage, to anyone else in your match page. To choose a match to evaluate, just click on their name and they will be added to the queue at the top, as shown here.
Clicking on Compare will then allow you to see the actual segments you share with each person:
In this One-To-Many view, each individual match gets their own line for each chromosome. Since we have added 7 people to the Chromosome Browser, there are seven lines next to each chromosome number. Each match not only gets their own line, but also their own color. So you can easily match up the lines on the chromosome to the match that shares that piece of DNA with you. For the majority of people the majority of the time, these Chromosome Browsers are just another fun way to visualize the connection you have with your DNA match. In the end, it doesn’t matter where you are sharing on the chromosome, just how much DNA you are sharing. You can obtain that information from your main match page and never look at this Chromosome Browser image, and still make fantastic genetic genealogy discoveries.
THE TRIANGULATION TOOL
Another feature of the Chromosome Browser on MyHeritage is the Triangulation tool. To understand how this works, you first need to understand that you actually have two copies of each chromosome. Two copies of chromosome 1, two copies of chromosome 2, etc. One copy is from mom, and the other from dad. However, in the Chromosome Browser image, you see only one line for yourself (in grey). Therefore, when you see someone matching you on chromosome 14, for example, you don’t know if that person is matching you on the chromosome 14 you got from your mom, or the chromosome 14 you got from your dad.
Likewise, if you see two people whose shared piece with you looks to be in the same location on the same chromosome, you can’t tell if they are both sharing on the same copy of that chromosome, or if one match is related to your dad’s family, and the other match is related to your mom’s family. However, this is what the Triangulation tool does for us. It tells us if two (or three or four, etc.) matches are sharing on the same copy of the same chromosome. Be careful when you use this tool, though. Many erroneously assume that when they see a segment shared between multiple people, that indicates the presence of a recent common ancestor for all of those people. However, that is not always the case.
Ready to start exploring what the MyHeritage DNA chromosome browser may tell you about your family history? You have two options. Click here to upload your autosomal DNA test results from another company to MyHeritage for FREE. Or click here to order a MyHeritage DNA test kit. Either way, you can start using all the great tools at MyHeritage DNA!
PROFILE AMERICA: FORD LAUNCHES ASSEMBLY LINE
PRODUCTION CREDITS:
Lisa Louise Cooke, Host and Producer
Sunny Morton, Editor
Diahan Southard, Your DNA Guide, Content Contributor
Michael Strauss, Military Minutes Content Contributor
Hannah Fullerton, Production Assistant
Lacey Cooke, Service Manager
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