Angela
Elite member
- Messages
- 21,823
- Reaction score
- 12,329
- Points
- 113
- Ethnic group
- Italian
There are other dedicated threads on this topic, but Razib Khan has taken another look at it. Interesting graphs, among other things. It ties in with current discussions on other threads as to the nature of sexual attraction, how admixed populations arise if people are only attracted to their "own", etc.
See:
https://www.gnxp.com/WordPress/2018/09/12/the-genetics-of-afrikaners-again/
"The average European ancestry I got in my South African white samples, N = 12, is 93.5%. Making a composite individual, note that if someone had great-great-grandparents who were not European, they would be expected to have 6.25% non-European ancestry. That’s 4 generations back. So about 100 years. These individuals are presumably adults. Let’s say they are 25 years old. That goes back 125 years. It’s probably reasonable in a single person admixture people to suggest it was sometime in the mid to late 19th century.This seems unlikely. The evenness of admixture and balance between different groups indicates that it is older than that, and they are obtaining it from different lineages. Traditional genealogical estimates suggested in the range of 5-7.5% non-European ancestry in Afrikaners, and one study of 185 individuals showed 18% non-European mtDNA.
I will probably do some ancestry deconvolution and see if I can get a figure for the time of admixture (though the fractions here are very small, as is the sample size of the admixtured population). But the non-European ancestry of Afrikaners is uncannily similar to the non-European ancestry of the Cape Coloureds. That to me leads us to the conclusion that in the early European settler community a fair number of mixed-race women married in. Those mixed-race women who married mixed-race men helped found the Cape Coloureds."
See:
https://www.gnxp.com/WordPress/2018/09/12/the-genetics-of-afrikaners-again/
"The average European ancestry I got in my South African white samples, N = 12, is 93.5%. Making a composite individual, note that if someone had great-great-grandparents who were not European, they would be expected to have 6.25% non-European ancestry. That’s 4 generations back. So about 100 years. These individuals are presumably adults. Let’s say they are 25 years old. That goes back 125 years. It’s probably reasonable in a single person admixture people to suggest it was sometime in the mid to late 19th century.This seems unlikely. The evenness of admixture and balance between different groups indicates that it is older than that, and they are obtaining it from different lineages. Traditional genealogical estimates suggested in the range of 5-7.5% non-European ancestry in Afrikaners, and one study of 185 individuals showed 18% non-European mtDNA.
I will probably do some ancestry deconvolution and see if I can get a figure for the time of admixture (though the fractions here are very small, as is the sample size of the admixtured population). But the non-European ancestry of Afrikaners is uncannily similar to the non-European ancestry of the Cape Coloureds. That to me leads us to the conclusion that in the early European settler community a fair number of mixed-race women married in. Those mixed-race women who married mixed-race men helped found the Cape Coloureds."
0