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23andme Basics and an Update

Jun25

My favorite capabilities at 23andme are: finding new relatives with DNA and comparing them in the chromosome browser, looking at my ancestry composition in depth, and having the ability to look up specific genes. Most of the recent changes at 23andme are to the ancestry composition tools, specifically there is more granularity in the areas it shows for your ancestors’ origins.

With three generations of Munsons on 23andme, thanks to my niece’s recent test, I can finally evaluate the GrandTree. This tool, found on the Family & Friends menu, lets you look at what you inherited from each grandparent. Not surprisingly my niece LM got way more from my mother, whose mother she strongly resembles, than from my Dad. There is no guarantee that you will get exactly 25% from each grandparent. In my case, I got more from my maternal grandfather which I deduce from my 28% jewish ethnicity.

This tool will look at the traits and health items tracked through the generations even if you did not buy the health reports. This will be discussed in more detail later in this article. Meanwhile, I will do a quick review of the current 23andme basics as a guide for my niece and any other new testers reading this.

Finding DNA relatives and comparing them in the chromosome browser

Click on DNA relatives on either the Ancestry menu or the Family & Friends menu to look at your cousin list. Here are my previous posts on this topic, still fairly accurate:

Looking up a specific gene

You can look up a specific gene or marker in the Browse Raw Data function which is found on the menu under your name. Click here for my blog post about the AIDS resistant gene which details how to  do that type of look up.

Ancestry Composition

The great thing about the ancestry composition display at 23andme is that it shows you the details by chromosome. None of the other testing companies do that. What’s more if you put your cursor on a specific ethnicity, it will highlight just those segments on the diagram. Click on Ancestry Composition on the Ancestry menu to get to the page with the most details, including the chromosome by chromosome display.
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Finding Cousins at 23andme

Jan10

There are a number of posts on this blog which can help you navigate 23andme (click here) but as always in life, things change. Now there are many new features and ways of finding information that are not covered by those articles. Plus the tests sold during the holiday sales are coming in and I have lots of new cousins.

The Family & Friends page – red arrows show what to click to get to the DNA relatives list from either top menu or this page

The key to using your 23andme test for finding new cousins is to navigate to the DNA relatives page and then click on each name of interest to go to the page with information about that match. The contents of that page are well covered in my previous blog post (click here)

Most importantly, you can get to the version of the chromosome browser that shows the actual segment locations and sizes from that match page. Here is why that is important.

When a new tester matched me, my dad, and several distant cousins for 33cM on a specific location on the X, I knew she was related via the Fatland farm family from Halsnøy island, Hordaland, Norway, because I had previously identified the ancestral source of that segment from the 1700s (click here to read about that). It took me a little over an an hour using Ancestry’s possible parent clues to build her a tree and find her descent from that family. It helped that I knew what I was looking for and only one of her Norwegian lines was from the Hordaland region.

23andme does not do tree matching for you like Ancestry does, but it does provide a chromosome browser. This means that sometimes you can tell from the segment that a cousin matches you on who the likely common ancestor is. When you keep a large master spreadsheet of all your matches from all the companies, this can sometimes be quick and easy (click here to read about using spreadsheets for DNA ).

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Changes to the 23andme DNA Relatives Displays

Feb23

There have been some good changes to the relative matching displays at 23andMe. Finally when I get a new match, I can quickly compare them to several other known relatives from that first DNA comparison page. One of the features I have always loved, that 23andMe has but not the other testing companies, is the ability to compare my matches to each other. Seeing how much DNA they share can often help resolve how they are related.

I was surprised and delighted to see that the granddaughter of my Dad’s favorite brother got a DNA kit for Christmas and her DNA results are just in at 23andMe. So I will use her kit to show the new 23andMe displays. For privacy I will call her Nan.

When I click DNA relatives under Tools, the page it goes to no longer has two top tabs. Perhaps that confused many users. Instead there is a long sentence up top where the last few words are linked to the chromosome browser page that I like to use. I have put a red box around those words in the image below of Dad’s best matches. Of course there are other better ways to get to that browser.

When Dad gets a new relative, I typically click on their name to see how they compare to him. That next page is the one that is vastly improved.

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Link Your Online Tree to 23andme

Apr28

A new feature at 23andMe is the ability to link your DNA test profile to a tree at any one of a number of online sites. Ancestry.com, FamilySearch.org FindMyPast.com, GENI.com, MyHeritage.com, RootsWeb, and WikiTree.com are all supported. The problem is that most of those sites need a login so if your match is not logged in there, it does not work well.

WikiTree.com and RootsWeb are the two that do not need a user to be logged in to see the tree, so I recommend using one of those sites. Although MyHeritage.com, which many of us still have from the days when you got a free small tree there as a member of 23andMe, will show much of a tree without being logged in.

Where do you see this tree link?
Go to Tools > DNA relatives and click on a person. Scroll to the very bottom of the page and see something like this image. Click the ‘Visit” link to get to the tree.
How do you link your profile to your tree?
This is the tricky part. The only place I have found where you can do this is from your DNA relatives People page.
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23andMe News: A Sale and New Features

Feb8

There is a Valentine’s Day Sale at 23andme.com for American users, $20 off for up to two kits until Feb. 14 which brings down the price for the ancestry only version to $79, more in line with the other companies.

In other news, rumor has it that non-American users will finally be transitioned to the new experience in the next few months. If anyone from 23andme is at Rootstech this week, I will ask for more specifics on that.

Meanwhile there are several new features at 23andme for those of us, Americans, on the new experience:

  1. The automated triangulation feature now shows all DNA relatives, not just open sharers, and includes anonymous users with a link to request a share.
  2. Ancestry composition includes a timeline indicator making a guess as to when your ancestor with that ethnicity might have lived.

Click the read more for the details on these. I confess, I am at Rootstech right now, so not there is not much time to write about these in depth, just a few thoughts and images.

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