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Neandertal Admixture discovered in some Indigenous Africans
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[QUOTE]Originally posted by The Old Doctore: [QB] [QUOTE]Originally posted by The Old Doctore: [qb] [QUOTE]Originally posted by The Old Doctore: [qb] [QUOTE] [i]Out of 1420 sub-Saharan chromosomes, only one copy of B006 was observed in Ethiopia, and five in Burkina Faso, one among the Rimaibe and four among the Fulani and Tuareg, nomad-pastoralists known for having contacts with northern populations (Table S1). B006 only occurrence at the northern and north-eastern outskirts of sub-Saharan Africa is thus likely to be a result of gene flow from a non-African source.[/i] [i]Interestingly, some of the HapMap3 haplotypes from the segments proposed by Green et al. (Green et al. 2010), and fulfilling our criteria of Neandertal admixture, also turn out in Maasai, where, however, their occurrence can be due to recent back-to-Africa migration (Sikora et al. 2010).[/i] [/qb][/QUOTE]I did the time to research the above quotes, but couldn't find it on the internet. The only link was to this very thread. The above two quotes are from two different tests, correct? The first quote really isn't surprising? Only 11 copies out of 1420 chromosomes... .8%, on the outskirts of Saharo-Tropical Africa. Western Eurasians likely possess a much more higher frequency of the African specific B007 chromosome. Your reading the second quote out of context. The segments [b]proposed[/b] by Green fulfill "Neanderthal" admixture. Some of them turn out in the Maasai. This isn't autosomal. In regard to the genomic segments, some of the haplotypes are possibly "Neanderthal" and some are Human... we therefore have no idea from the quote alone what haplotype (Neanderthal or Modern Human) were found among the Maasai. I'm guessing modern human, since the Maasai are a interior Cushitic/Nilotic/Bantu population. I need a better source btw. This doesn't debunk the OOA theory. Non-Africans migrated out of Africa were prior to their differentiation they possibly received gene-flow from Neanderthals. 2.5% in regard to there genomes, which happen to be totally useless. Melanesians picked up 5% from another Neanderthal like group. Of course there are other theories. It's unlikely Neanderthal admixture though, since Cambodians are supposedly more Neanderthal than Sardinians. :confused: IMO, it could be just that genetic drift and bottlenecks caused a few ancient genomes/haplotypes to be more frequent among non-Africans in comparison to Africans. Africans carry the overwhelming majority of the deep/ancient genomes/haplotypes btw. Both the Neanderthal/Archaic and Ancient African Substructure are weakened by the new evidence. [/QUOTE][/qb][/QUOTE]Typo, only 6 copies of B006 were found in Africa. 5 in Burkina Faso and 1 in Ethiopia out of 1420. .4%. [/QB][/QUOTE]
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