Ethnic admixture and ancestry

Question

If you have taken an autosomal test via Family Finder, AncestryDNA or 23andMe then you may have been surprised to find your results said you had "Scandinavian" or "Middle Eastern", etc. ancestry, but you have no known ancestry from say Scandinavia or the Middle East.  What is not well understood is to what degree the average person who can trace all their ancestors back (say four or five generations) to one country such as "England" may still have enough autosomal DNA from other places or ethnic groups for that minority ethnicity to show up in their admixture results.

I would like to start a project (free space page) to record people who have taken an autosomal DNA test, have their results in GEDmatch, AND can trace ALL their ancestors for four or more generations to the same country of origin.  That would be at least all their great-great-grandparents.  This would not include persons who can trace four generations of their ancestry to immigrant countries such as Canada, South Africa, U.S., Australia, etc. The exception would be (for example) you have "Norwegian" ancestry in the U.S. and all your Norwegian ancestors married persons with only Norwegian ancestry.

For now I'm looking for

1. auDNA tester's tree: (in the display format of  http://www.wikitree.com/treewidget/Roberts-7085/5) -- not a good example because this tree does not have at least four generations of ancestors from one source country of origin.

2. GEDmatch ID

3. Are willing to have their ethnicity percentages displayed on the project page.

In other words, do you have an "unmixed" ancestry and do you have your autosomal DNA results in GEDmatch?  Or can you find someone in WikiTree who does?

Here is a start for those who are interested:

http://www.wikitree.com/index.php?title=Space:Autosomal_DNA_Ethnic_Admixture_and_Ancestry

Thanks and sincerely, Peter

Peter J. Roberts

Comments

The way I understand this is that I would be ineligible. My mother was born in England, no problem there. My father, Australian, has ancestors that were born in England, Scotland and Ireland. i.e. within the 4 generations. The 5th or 6th generations on one line were most likely born in France but crossed the Channel and never left.

I also have an NPE within the 4 generations of my mother's side and who knows where he came from.

Answer 1

Peter forgive me but I don't understand the request or the example. You state you want results from people who can trace all their ancestors 4 or 5 generations ago to one country such as England. But your example traces family back to Georgia, USA and the Bahamas. The example doesn't fit my understanding of your request because it seems this person in the example doesn't have all their ancestors from one country but has at least two countries four to five generations ago. And unless the person was Native American the Georgian ancestors' ethnicity can't be counted as a single group.   

Comments

My example is just the display format and not the ancestry.  I searched for half an hour and could not find anyone to use as an example.  The best I could find was Magnus

http://www.wikitree.com/treewidget/S%C3%A4lg%C3%B6-1/5

but not even he qualifies because he is corrupted with Serbian ancestry ;-)

---

How about mine? I think it qualifies since I haven't any gggrandparents  from outside  England. I

http://www.wikitree.com/treewidget/Coleman-5109/5

I also have phased data since my father has been tested (not sure that makes a difference since both he and my mother also qualify; though he has one interloper from Wales.) 

 

---

Helen this is perfect I would think!

---

Great! Thanks Helen.

Here is a start for those who are interested:

http://www.wikitree.com/index.php?title=Space:Autosomal_DNA_Ethnic_Admixture_and_Ancestry

I'm wondering if we should have a percentage cut off (nothing below 4%, or nothing below 1%)?  Also which ethnicity calculators for Europeans? (just Eurogenes and / or MDLP, etc.)?  I wonder if this needs to be in a table?

I hope others will help populate this page.

Answer 2

I just went to your page and sent you a message.