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Ancient Tanzanian Pastoralist results... VERY interesting stuff!
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[QUOTE]Originally posted by Swenet: [QB] [QUOTE]Originally posted by Tyrannohotep: While we do have records of European populations like the Greeks and Sea Peoples settling in northern Egypt during the late dynastic period, [b]I suspect most of the Eurasian ancestry in AE would have come from Levantine rather than European sources[/b]. And I don't think we have enough aDNA data yet to say for sure how much Eurasian vs indigenous North & sub-Saharan African ancestry the AE throughout time and space had. We might have to wait and see on this one.[/QUOTE]True. Which makes it all the more ironic that predynastics are, phenotypically, closer to most EEF subgroups than to Natufians and PPN. I think this discrepancy is partly due to what I told Polako about E-V68 and E-V257, partly because of the unique pre-Natufian genetic makeup of the Levant, and partly because the autosomal signature associated with the Neolithization of North Africa was not typically Levantine. R1b-V88, although ultimately of eastern Eurasian origin, seems more consistent with EEF-related ancestry around the time it was introduced to North Africa (not with Levantine ancestry). In fact, the apparent presence of R1b in the Levant in post-PPN times jibes well with the trend of homogenization and the spread of EEF-like ancestry in the Mediterranean basin. So, for instance, the Natufian-PPN transition is associated with roughly as much EEF-like input as the IAM-KEB transition is. This suggests that post-PPN populations in the Levant are likely to have even more EEF-like input than PPN do. Relevance? The R1b carriers who introduced domesticates to Egypt ~7kya apparently belonged to this EEF-admixed post-PPN population. BTW, this is also why I'm very sceptical of claims that the non-SSA ancestry in Africa (e.g. Luxmanda) is actually PPN. It's anachronistic as it does not fit the aforementioned trend of homogenization. Luxmanda's so-called PPN could easily be something EEF-related + various components of which some are African, because that is exactly what PPN is also. I think when predynastics are sampled, their non-SSA ancestry will show a preference for PPN and Natufians (compared to EEF). But, taken literally, this is similarly bogus for all the aforementioned reasons. [QUOTE]Originally posted by Djehuti: Check out Swenet's blog page on that topic [URL=http://egyptsearchdetoxed.blogspot.com/2016/07/why-basal-eurasian-is-still-african-as.html]here[/URL].[/QB][/QUOTE]When I have time I will make a new post about Basal Eurasian because I understand it much better now. [/QB][/QUOTE]
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