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Thread: Homo Sapiens-deepest divergence

  1. #1
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    4 members found this post helpful.

    Homo Sapiens-deepest divergence

    The Khoe San provide some interesting clues.

    See:

    https://academic.oup.com/mbe/article/37/10/2944/5874945

    It's the Thorsten Gunther group

    "Abstract

    The southern African indigenous Khoe-San populations harbor the most divergent lineages of all living peoples. Exploring their genomes is key to understanding deep human history. We sequenced 25 full genomes from five Khoe-San populations, revealing many novel variants, that 25% of variants are unique to the Khoe-San, and that the Khoe-San group harbors the greatest level of diversity across the globe. In line with previous studies, we found several gene regions with extreme values in genome-wide scans for selection, potentially caused by natural selection in the lineage leading to Homo sapiens and more recent in time. These gene regions included immunity-, sperm-, brain-, diet-, and muscle-related genes. When accounting for recent admixture, all Khoe-San groups display genetic diversity approaching the levels in other African groups and a reduction in effective population size starting around 100,000 years ago. Hence, all human groups show a reduction in effective population size commencing around the time of the Out-of-Africa migrations, which coincides with changes in the paleoclimate records, changes that potentially impacted all humans at the time.


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    Thanks for posting this. More evidence that strengthens the Out-of-Africa orthodoxy. Perhaps now the small minority who refused to accept Out-of-Africa will finally admit they were wrong.

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