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Ancient Tanzanian Pastoralist results... VERY interesting stuff!
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[QUOTE]Originally posted by Elmaestro: [QB] [QUOTE]Originally posted by capra: [qb] @Elmaestro Yeah, they could have put in a lot more populations. But hey, leaves something for other groups to do I guess. Finally got to the qpGraphs. OK, something that's bugging me - does it even make sense to say less admixture is more parsimonious because you have to posit admixture events? You could just as well say it's less parsimonious because you have to posit barriers to gene flow. Lack of admixture arrows every which way seems more of a necessary evil than a virtue. I was wondering why they seem to be favouring the Basal African ghost over just Yoruba being closer to East Africans - but looking at those D stats everyone is closer to Yoruba than to Mende - even Mandenka. Crazy! [/qb][/QUOTE]I'm not entirely sure but it looks like what little differences in Basal African Ancestry between the Mende and YRI is what defines how close other populations are to either of them. Mende having more Basal African Ancestry siglehandedly makes all other African populations closer to the Yorubans. Mbuti being representative of an early split just became less significant, as maybe even THEIR ancestry is drifted away considerably from the "ghost" African Ancestor. Yorubans as well as maybe all Bantu populations might have more Mbuti-like/(RHG) Admixture than the Mende. ~Reffering back to Patin 2017, elevated levels of RHG seems synonymous with scoring higher for Mbuti in comparison to Mota, It looks like YRI have admixture from Mbuti, and Basal African, and maybe more... this series of recombination is probably what shapes the west African genetic landscape, and that small amount of Archaic African means a lot... There's nothing parsimonious about less Admixture events, it's just convenient if you ask me, I don't think it's intentionally misleading though. The new South African Hunter Gatherer genomes puts the Mota->West African relationship in check, they have to explain why such a Divergent lineage (SAHG) shows closeness (relative to West Africans) to Mota. But also, there's another thing.... The root population is modeled off of Neanderthals and Denisovan, so we have to Account for that as well. We can probably put together a working general phylogeny of Early human history now, but seems very webbed. [/QB][/QUOTE]
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