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Introgression from Gorilla caused the Human-Chimpanzee split

Nygren, Johan


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    "description": "<p>ABSTRACT: The Gorilla Genome Project (Scally, 2012) showed that 30% of the gorilla genome introgressed into the ancestor of humans and chimpanzees, and that the two species diverged through lineage sorting with 15% ending up in <em>Pan</em> and another 15% in <em>Homo</em>. That introgression is the <em>Pan</em>-<em>Homo</em> split, hybridization, which led to speciation as the new hybrid lineages became reproductively isolated from one another.<br>\n<br>\nThe NUMT on chromosome 5 (&ldquo;ps5&rdquo;) (Popadin, 2017) fits perfectly with the introgression speciation model, it was formed from mtDNA that had diverged from the common ancestor of <em>Pan</em>-<em>Homo</em> for 1.8 Myr at the time of insertion into the nuclear genome, and originated in the <em>Gorilla</em> lineage. The ps5 pseudogene was transferred to <em>Pan</em> and <em>Homo</em> during the introgression event that led to the <em>Pan</em>-<em>Homo</em> split, 6 million years ago.</p>", 
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      "evolution; human; chimpanzee; gorilla; introgression"
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