Search Results for: parents related

My presentation on GEDmatch Tools is this Thursday in Carlsbad, CA

Aug19

If you live anywhere in the San Diego area, you might enjoy hearing me talk about the tools at GEDmatch this Thursday evening, August 21, at 6:30 to the DNA Interest Group of the North San Diego County Genealogical Society (known as DIGG  – click this link for location details) .  I will link to the presentation in the comments here by Thursday. Instead of powerpoint, I am using a cool online HTML 5 tool at slides.com to create the presentation. Here is one of the images I made for the talk.

Sample Admix MDLP World-22 Calculator

Sample Admix MDLP World-22 Calculator

In the left image, the pygmy is actually the smaller red slice and Sub-Saharan the larger – can you tell the colors apart? I cannot.

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Where personal DNA testing is today

Feb11

All the DNA testing companies are still refining and improving their bio-ancestry estimates (which they call ethnicity). They are getting closer to agreeing with each other now, but that aspect of DNA testing is not yet a firm science. A number of companies have recently updated their estimates. Ancestry did a major update in October 2024 (click here for that white paper) and MyHeritage just did an update as well. The main effect on my family’s results is a far more accurate prediction of our Norwegian percentage. In the past, all the companies, except Ancestry, called our Norwegian Scandinavian and English. MyHeritage even gets the locations in Norway correct, since we have ancestors from 3 different areas. This is due to my grandad, born in Kristiansand, marrying the daughter of Norwegian immigrants (from Vestland and Hordaland) who met in Brooklyn.

Above are my brother’s current estimates with the new MyHeritage update. Since we have one German Jewish grandfather, I love to see how much each company assigns to Ashkenazi (northern European Jewish) for me and my brother. They all agree that I got about 8% more from our grandad than he did, but the exact amounts are different. Plus MyHeritage now breaks the Ashkenazi into Western and Eastern Europe. My brother got those refinements (added in to Jewish below) but I did not.

Our various bio-ancestries, note Family Tree DNA is actually called Scandinavian not Norwegian. Also the extra jewish regions for MyHeritage have been added back in.

In the past MyHeritage showed only 44% Scandinavian and 27% English/Irish/Scottish which did not fit with the fact that my Dad is Norwegian going back to the 1500s. Now they show me with 53% Norwegian and no British. Ancestry has long since gotten rid of the erroneous British etc. prediction (it’s now 1%) while Family Tree DNA still has that. Yes my ancestors visited the British Isles and undoubtedly left some genetic material … While he was still alive my Dad did a 23andme test and they predict 97.3 Scandinavian for him with the rest Finnish. Unlike MyHeritage and Ancestry, 23andme does not break down Scandinavian by country.

I have a previous blog post (click here) about our ethnicity percentages where I remind my readers that “Although you inherit half of your DNA from each parent, they do not have to pass you an equal amount from each of their parents.” As you can see above, my brother and I got different amounts from our Jewish grandfather.

As the experienced tester knows, it’s the relative matching where the companies excel, although the exact relationships of more distant relatives cannot be accurately predicted. Even close family relationships, like uncle versus half brother versus grandad, are not always clear. (Click here for my post on that). Looking at that person’s relationships to other family members plus age and location can often get you to an answer.

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Make Ancestry Find the Relationship

Apr23

Did you know that Ancestry can figure out how you are related to a DNA match if you both have trees linked to your DNA tests? You do not have to have anyone further back than your parents if other relatives have more extensive trees on Ancestry that include your family,

So how do you link your tree to your DNA? First log into Ancestry.com. Then click on DNA Result Summary in the pull down menu under DNA. Next click the gear on the far right that says Settings next to it as shown in the image below.

Once you are on the Settings page, scroll down to the words DNA and family tree linking.​ Then click that box to get to the page where you can link your test to your tree.

​There you will see something like the below image​ where you can specify the tree and the person to link the DNA test to. When you start typing a name, Ancestry will use auto complete to show possible names from your tree. Once you have selected yourself or the person whose kit it is, click the blue button to make the connection.

The tool Ancestry uses to find and display relationships based on trees linked to DNA results is called ThruLines which I have numerous posts about. Now for an example of what this can produce.
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Ancestry Now Divides Your Matches by Parent

Dec1

Even if you haven’t been carefully assigning sides and relationships to your DNA matches, Ancestry will now try to assign sides for you! As with the recent Sideview feature (click here for that blog post), it uses Parent 1 and Parent 2. However you can use the blue Edit Parent link to change them to Paternal and Maternal, if you can figure out from the matches or communities which is which.



If you click on DNA Matches in the DNA menu as shown above you go to a new page like the one for my matches that I show here (click it for a larger version). It separates your matches into parent 1 and parent 2 (or maternal and paternal if you have assigned those) plus Both sides and Unassigned. Newer matches since April will always be unassigned, as well as ones it cannot figure out (click here for Ancestry’s explanation). You can see more surnames or communities by clicking on the blue View more in each panel. Clicking on All matches in the top menu bar will take you to the usual match page but now each match will have a side, both sides or unassigned listed underneath their relationship in the list. There are a few examples below. You can click on By parent to get back to this interesting new page. Clicking View matches in the first box for Parent 1 or any designation will show you your match list with matches from just that side.

I had delayed blogging about this fun feature because it was initially buggy and they took it down briefly. Also it is still in Beta test, so perhaps not everyone has it yet. Sadly there are still a few problems, so take your results with a grain of salt. Not surprisingly, people from endogamous populations are mainly out of luck with this new tool.

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New DNA Match List Features at MyHeritage

Nov23

MyHeritage has added labels (colored dots) and favorites (stars) to the DNA matches lists. These are extremely similar to the ones at AncestryDNA. One advantage at MyHeritage is that when you select multiple colored dots to display, you are shown all the matches marked with either one, whereas Ancestry only shows the matches who have both. Another advantage is that MyHeritage gives you 30 colors as opposed to the 24 at Ancestry.

On a DNA match, the left are icons for the new features, labels and favorites, above the new location of the notes icon (red arrow my addition). Clicking the square for a label slides in a panel on the right as above.

The downside of the MyHeritage implementation is that you can only see and edit these colored labels on the DNA match lists, not on the actual match page or its in common with list. According to the blog post that My Heritage wrote on how to use this feature (click here), those pages will have the labels in the future. Also when you export your match list from MyHeritage there is no indication of those labels in the resulting CSV.

So how might you use this new feature? First of all, for myself, I use the favorites star for matches I want to come back to later. However when working on an unknown parentage case, I use the star for just the paternal side which is helpful for various automated tools.

If you have already assigned colored dots on Ancestry, my advice is to use the same colors on your MyHeritage labels for the same groups. Personally I have assigned a color to each great-grandparent line, except my Bavarian line which has very few testers and no matches that I can confirm other than the one 2nd cousin that I convinced to test.

Then I have a few fifth grandparents who seem to have many tested descendants that match us, so they get colors too. Next I assigned colors for as yet undetermined matches from the same localities that my ancestors are from, those include labels for Norway unknown, Germany unknown, and Ashkenazi unknown. Click here for my discussion of how I use the very similar the Ancestry labels.

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