In the Facebook genetic DNA groups, I've seen one subject discussed pretty frequently over the past couple of weeks that I hadn't heard of before. That is auto-clustering of DNA matches. This looks like a spreadsheet of your DNA matches, color coded and clustered into common match groups. The way it works is that for any given colored cluster, each of them should be descended from one common ancestral couple. This seems like a way to better compare in-common matches. Here is how you do it.
You can find my email address on my genealogy link page: http://www.mattkmiller.com. Follow me on Instagram @mattsgenealogyblog
Showing posts with label genetic testing. Show all posts
Showing posts with label genetic testing. Show all posts
Monday, December 3, 2018
Thursday, April 6, 2017
Family Tree DNA MyOrigins
Family Tree DNA has revamped their MyOrigins. At first, I thought it was just in the way they present it. In actuality, it appears they've recalculated their formulas. Previously, Family Tree DNA MyOrigins told me I was 45% Scandinavian, 39% British Isles, 12% Southern Europe and 4% Asia Minor. I understood that to be telling me that my German genetics was actually due to the migration of population between Western Europe, British Isles and Scandinavia, as in the Anglos and the Saxons. The Southern Europe would be due to some Europeans migrated northward out of Italy and Greece through the centuries. Some of the British Isles would be from my Irish ancestry and the Asia Minor was the surprise of my yDNA haplogroup.
Wednesday, July 13, 2016
X-DNA Inheritance and What It Tells You
I felt I wasn't getting a lot of genealogical value from my DNA test. I was speaking with a distant cousin of mine and she reminded me to take a look at my xDNA matches. Taking a closer look at this does tell me quite a bit more about my matches and could help narrow down how some are related to me.
What is xDNA? xDNA is the other half of the chromosome pair that includes the yDNA that males receive from their father. Mothers always pass along half of their xDNA to all of their offspring. If their child is male, all of his xDNA came from his mother and all of his yDNA came from his father. If their child is female, the daughter will receive half of her xDNA from their mother and the other half from her father.
What is xDNA? xDNA is the other half of the chromosome pair that includes the yDNA that males receive from their father. Mothers always pass along half of their xDNA to all of their offspring. If their child is male, all of his xDNA came from his mother and all of his yDNA came from his father. If their child is female, the daughter will receive half of her xDNA from their mother and the other half from her father.
Saturday, March 19, 2016
Family Tree DNA and GEDMatch
I've used Family Tree DNA for all genetic testing I've had done or recommended. I also upload my data to GEDMatch to expand my search for genetic cousins. Now, it appears the two organizations are in a spat. It's become a he-said/she-said argument but neither has publicly stated what the problem is. All we know for certain is that Family Tree DNA says that data uploaded to GEDMatch compromises the privacy of Family Tree DNA customers. GEDMatch says that Family Tree DNA has threatened legal action. Family Tree DNA has said (sort of) that they didn't threaten legal action. GEDMatch says that Family Tree DNA demanded that uploads of FTDNA kits to GEDMatch be suspended. Family Tree DNA says that they were surprised that GEDMatch suspended the uploads unilaterally. However, in the same and other statements, Family Tree DNA says they requested that uploads be suspended. Based on the fact that Family Tree DNA has issued conflicting statements, I'm believing what GEDMatch is telling us.
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