ノート:ハプログループE (Y染色体)

Origins

Nonetheless, in 2015 Poznik and Underhill have claimed haplogroup E, arose outside Africa. This model of geographical segregation within the CT clade requires just one continental haplogroup exchange (E to Africa), rather than three (D, C, and F out of Africa). The timing of this putative return to Africa, between the emergence of haplogroup E and its differentiation within Africa by 58 kya, is consistent with proposals, based on non–Y chromosome data, of abundant gene flow between Africa and Arabia 50–80 kya.

A Eurasian center of origin and dispersal for haplogroup E has also been hypothesized based on the similar age of the clade's parent haplogroup DE and the mtDNA haplogroup L3. According to this hypothesis, after an initial Out-of-Africa migration of early anatomically modern humans around 125 kya, fully modern human E-carrying males are thus proposed to have back-migrated from the paternal haplogroup's place of origin in Eurasia around 70 kya along with females bearing the maternal haplogroup L3, which is also hypothesized to have originated in Eurasia. These new Eurasian lineages are then suggested to have largely replaced the old autochthonous male and female African lineages.

前もって感謝します Satoshi Kondo（会話） 2018年8月23日 (木) 10:55 (UTC)