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R-V88 from where…really ?– new study
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[QUOTE]Originally posted by capra: [QB] Negative f3 indicates admixture between populations [i]related[/i] to the reference populations, not with those populations themselves; each individual reference population is not implied to have contributed individually! There's a shitload of significant f3 values because they included a shitload of different Eurasians and all Eurasians are related, so each can be a reference for the real ancestral population(s). That's all. The absolute number is irrelevant, it's just adding more subgroups of East Asians, more subgroups of Europeans, more subgroups of Amerindians, or whatever, that all have very similar scores. Eurasians would share drift with an Out-of-Africa-related population that remained in Africa and hence could give an f3 signal when serving as references for it. However, a sister group to Out-of-Africa won't be more closely related to one Eurasian population than another, but we see a big difference in f3 between different reference populations; actually they probably would be less related than Ust' Ishim, and he gives a weak signal. Could be partial element though I think. Haber et al connect the admixture in Toubou to that in the Horn based on the similarity of the dates, but I don't find that convincing. What is the actual historical connection supposed to be? Also, LD dates tend to be downward-biased and newer events can conceal older ones. [/QB][/QUOTE]
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