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Thread: 4500-year-old Ethiopian - Y-DNA E1b1, mtDNA L3, and considerable Eurasian admixture

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    4500-year-old Ethiopian - Y-DNA E1b1, mtDNA L3, and considerable Eurasian admixture

    http://www.sciencemag.org/content/ea...d2879.abstract

    Characterizing genetic diversity in Africa is a crucial step for most analyses reconstructing the evolutionary history of anatomically modern humans. However, historic migrations from Eurasia into Africa have affected many contemporary populations, confounding inferences. Here, we present a 12.5x coverage ancient genome of an Ethiopian male (‘Mota’) who lived approximately 4,500 years ago. We use this genome to demonstrate that the Eurasian backflow into Africa came from a population closely related to Early Neolithic farmers, who had colonized Europe 4,000 years earlier. The extent of this backflow was much greater than previously reported, reaching all the way to Central, West and Southern Africa, affecting even populations such as Yoruba and Mbuti, previously thought to be relatively unadmixed, who harbor 6-7% Eurasian ancestry.

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