Quantitative Biology

1808 Submissions

[2] viXra:1808.0466 [pdf] submitted on 2018-08-22 03:30:10

Introgression from Gorilla Caused the Human-Chimpanzee Split

Authors: Johan Nygren
Comments: 4 Pages.

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)

Category: Quantitative Biology

[1] viXra:1808.0250 [pdf] submitted on 2018-08-18 14:17:28

The Speciation of Australopithecus and Paranthropus Was Caused by Introgression from the Gorilla Lineage

Authors: Johan Nygren
Comments: 6 Pages.

ABSTRACT: The discovery of Paranthropus deyiremeda in 3.3–3.5 million year old fossil sites in Afar (Haile-Selassie, 2015), together with 30% of the gorilla genome showing lineage sorting between humans and chimpanzees (Scally, 2012), and a NUMT (“nuclear mitochondrial DNA segment”) that is shared by both gorillas, humans and chimpanzees, and that dates back to 6 million years ago (Popadin, 2017), is conclusive evidence that introgression from the gorilla lineage caused the speciation of both the Australopithecus lineage and the Paranthropus lineage, providing a lens into the gorilla-like features within Paranthropus, as well as traits within Homo that originate from the gorilla branch, such as a high opposable thumb index (Almécija, 2015), an adducted great toe (Tocheri, 2011; McHenry, 2006), and large deposits of subcutaneous fat.
Category: Quantitative Biology