Formal testing of the fit of racial classifications to genetic diversity patterns show that they are not reflective of actual genetic diversity https://www.ncbi.nlm.nih.gov/m/pubmed/19226648/ …
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Replying to @itsbirdemic @Etain99297348 and
So you find Long et al. to be the study of choice, not ones like https://www.ncbi.nlm.nih.gov/pubmed/18292342 or https://www.ncbi.nlm.nih.gov/pubmed/20643205 ? No accounting for tastes, I guess.
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Replying to @charlesmurray @Etain99297348 and
Well yes. Based on my reading, those papers didn't explicitly test the fit of models of population structure. No one argues diversity can't be squeezed into K clusters but rather how well those clusters reflect the overall diversity. You have to quantitatively investigate that
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Replying to @itsbirdemic @charlesmurray and
I don't recall if you've told me your thoughts on Hardimon's minimalist/populationist race concepts and Spencer's Blumenbachian partitions. Thoughts on those arguments?
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Replying to @Race__Realist @charlesmurray and
I think it's probably redundant to use the term race for populations (Hochman argues this), but it's the most appropriate of all conceptions imo. As long as people stick to that & don't switch to folk races or overstretch the implications of race-as-populations I don't quite care
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Replying to @itsbirdemic @Race__Realist and
Templeton test of treeness is the definitive take on this matter. If we want objective racial categories valid across species. There are chimpanzee races, not human ones. Populations ARE NOT races.
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Replying to @pp0196 @itsbirdemic and
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3737365/ … And the clustering argument is so bizarre, bc by that logic you either have k=1 or up to 325. And the clusters are highly dependent of the sampling strategy.
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Replying to @pp0196 @itsbirdemic and
Yes, the k value is arbitrarily chosen, but Rosenberg et al. found that k=5 captures somewhat discontinuous continental level genetic variation that corresponds to a distinctive pattern of physical features initiated by geographically isolated founding populations,
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Right. If you look at a globe, it's obvious that in some places, such as in central Eurasia, continental-scale races will blend from one to the other. But in other places, such as the Atlantic, there was virtually zero gene exchange between Africa and the Americas before 1492.
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Replying to @Steve_Sailer @ChaouiAl and
what is in your opinion the last instance/period of gene flows between founders of the americas and the African continent ? This can be tested you know.
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