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Pleistocene North African genomes link Near Eastern and sub-Saharan African human pop
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[QUOTE]Originally posted by Swenet: [QB] [QUOTE]Originally posted by capra: sure - though U6 and pre-M1 could go way back - but why does it have to be E-M78 specifically rather than E-M35? the TMRCA of E-M35 according to YFull (not that it's gospel) is about 22-26 000 years. [b]the TMRCAs of M1 and U6a according to this paper are 20-29 000 years. all have the same central estimate. so why not then?[/b][/QUOTE]The central theme of ~25kya in U6, M1 and E-M35 reflects similar demographic reactions to climatic conditions in North Africa during the LGM. They don't reflect the lineages coming together in the ancestral Taforalt population 25kya. By making this sample a result of U6, M1 and E-M35 coming together 25ky ago, you're attaching way too much significance to this sample. The history of this Taforalt sample involves just a couple of threads in the larger evolutionary storyline of U6, M1 and E-M35 (and other haplogroups that have yet to be found, like L3k and E-M33). The ancestors of later Egyptians also belong to a couple of threads of this meta-population, as did ancient Libyans, Natufians and some southern Europeans. These threads all unfolded simultaneously and independantly and then came together during times of admixture, only to seperate again, starting 25kya. And this Taforalt population has no special or central role in this storyline. It just involves a couple of threads that came together in this population. Nothing more. It would be a mistake to interpret this Taforalt sample as having formed 25kya and somehow being at the center of all this history. [/QB][/QUOTE]
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