Introgression from Gorilla caused the Human-Chimpanzee split
- Published
- Accepted
- Subject Areas
- Anthropology, Evolutionary Studies, Genomics
- Keywords
- evolution, human, chimpanzee, gorilla, introgression
- Copyright
- © 2018 Nygren
- Licence
- This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ Preprints) and either DOI or URL of the article must be cited.
- Cite this article
- 2018. Introgression from Gorilla caused the Human-Chimpanzee split. PeerJ Preprints 6:e27134v2 https://doi.org/10.7287/peerj.preprints.27134v2
Abstract
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 Pan and another 15% in Homo. That introgression is the Pan-Homo split, hybridization, which led to speciation as the new hybrid lineages became reproductively isolated from one another.
The NUMT on chromosome 5 fits perfectly with the introgression speciation model, it was formed from mtDNA that had diverged as much as ~4.5 Myr at the time of introgression, perfect fit with the Gorilla/Pan-Homo split, and the mtDNA fragments that formed it were inserted at the time of the Homo/Pan split, and ended up in both the Gorilla, Pan and Homo lineages around the same time period, 6 million years ago. (Popadin, 2017)
Author Comment
The previous version had a typo, fixed in this version.