White Americans non-caucasoid admixture from 23andme

[TheForeigner]

http://dienekes.blogspot.it/2014/03/...opulations.htm In an update to that work, our researcher Kasia Bryc found that about about 4 percent of whites have at least 1 percent or more African ancestry.

Although it is a relatively small percentage, the percentage indicates that an individual with at least 1 percent African ancestry had an African ancestor within the last six generations, or in the last 200 years. This data also suggests that individuals with mixed parentage at some point were absorbed into the white population.

Looking a little more deeply into the data, Kasia also found that the percentage of whites with hidden African ancestry differed significantly from state-to-state. Southern states with the highest African American populations, tended to have the highest percentages of hidden African ancestry. In South Carolina at least 13 percent of self-identified whites have 1 percent or more African ancestry, while in Louisiana the number is a little more than 12 percent. In Georgia and Alabama the number is about 9 percent. The differences perhaps point to different social and cultural histories within the south.

[Tooting Carmen]

Interesting. Still, White Americans are much more genuinely European genetically than most 'Whites' on the other side of the Rio Grande.

[Leto]

One percent are just nothing. Btw, what about a native American admixture?

[TheForeigner]

On average Latinos had about 70 percent European ancestry, 14 percent Native American ancestry and 6 percent African ancestry. The remainder ancestry is difficult to assign because the DNA is either shared by a number of different populations around the world, or because it’s from understudied populations, such as Native Americans. Obviously that large “unassigned” percentage means that those “averages” could be higher. As with African Americans, looking at the regional and state-to-state numbers for self-identified Latinos, the differences are striking.

...

For example, some Latinos have no discernible Native American ancestry, while in others have as much as 50 percent of the ancestry being Native American. Latinos in states in the Southwest, bordering Mexico — New Mexico, Texas, California and Arizona — have the greatest percentage of Native American ancestry. Latinos in states with the largest proportion of African Americans in their population — South Carolina, Louisiana and Alabama — have the highest percentage of African Ancestry. Also from the study, although it is not about european-americans. I am surprised that mixed race ''latinos'' are on average predominantly european or at least 23andme customers are.

[Tooting Carmen]

On average Latinos had about 70 percent European ancestry, 14 percent Native American ancestry and 6 percent African ancestry. The remainder ancestry is difficult to assign because the DNA is either shared by a number of different populations around the world, or because it’s from understudied populations, such as Native Americans. Obviously that large “unassigned” percentage means that those “averages” could be higher. As with African Americans, looking at the regional and state-to-state numbers for self-identified Latinos, the differences are striking.

...

For example, some Latinos have no discernible Native American ancestry, while in others have as much as 50 percent of the ancestry being Native American. Latinos in states in the Southwest, bordering Mexico — New Mexico, Texas, California and Arizona — have the greatest percentage of Native American ancestry. Latinos in states with the largest proportion of African Americans in their population — South Carolina, Louisiana and Alabama — have the highest percentage of African Ancestry. Also from the study, although it is not about european-americans. I am surprised that mixed race ''latinos'' are on average predominantly european or at least 23andme customers are.

That's interesting, because people usually say that the Mexicans in the Southwestern United States tend to be more Caucasoid than the ones in the Northeast.

[TheForeigner]

http://dienekes.blogspot.it/2014/09/...different.html Overall, it seems that relatively few (less than 5%) of European Americans have more than 2% either African or Native American ancestry in any of the states, so the breakdown of European ancestry into various subgroups is perhaps more interesting.The existence of "African Americans" with virtually no African ancestry and of "European Americans" with as much as half African ancestry is probably due to either misreporting or some quite strange self-perception issues. The bulk of the African ancestry in European Americans seems to be in the sub-10% range (equivalent to less than 1 great grandparent). It is possible that many of these individuals might not even be aware of the existence of such ancestors. Apparently some african-americans also have some amerindian admixture. This again seems dubious to me, how these studies always contradict previous studies and make radically different claims, which sometimes contradict what is known from history. Notice just a few months later they claim higher average negroid admixture and even a few more or less mixed race types passed as ''whites'', brazilian style.

[TheForeigner]

That's interesting, because people usually say that the Mexicans in the Southwestern United States tend to be more Caucasoid than the ones in the Northeast.

So now you have many Mexicans even in the Northeastern United States?

[Tooting Carmen]

So now you have many Mexicans even in the Northeastern United States?

New York in particular has lots.

[Anglojew]

That's a lot less than I would have expected.

[KawaiiKawaii]

Seriously, with all this time them living together, I would have thought them to have much more, especially in the south. Well, the one drop rule really did work.