Oxford Journals : An X-linked haplotype of Neandertal origin is present among all non-African populations
This is another blow on those who claimed that humanity descends exclusively from African Homo Sapiens. 9% is more than I expected, and this is just an average for Eurasia, Oceania and the Americas. According to the map at the bottom of the article, the Neanderthal haplotype B0006 exceeds 25% of the population among Native Americans from the west coast of the USA and Canada. On the other hand it is virtually absent from East Asia, Indonesia and Papua-New Guinea. In Europe, the region of Serbia and Albania appears to have the lowest Neanderthal admixture, in the continuity of the Levant and Egypt. This would be consistent with the higher percentage of the African haplogroup E1b1b.
Oxford Journals said:Recent work on the Neandertal genome has raised the possibility of admixture between Neandertals and the expanding population of H. sapiens who left Africa between 80 Kya and 50 Kya to colonize the rest of the world. Here we provide evidence of a notable presence (9% overall) of a Neandertal-derived X chromosome segment among all contemporary human populations outside Africa. Our analysis of 6092 X-chromosomes from all inhabited continents supports earlier contentions that a mosaic of lineages of different time depths and different geographic provenance could have contributed to the genetic constitution of modern humans. It indicates a very early admixture between expanding African migrants and Neandertals prior to or very early on the route of the out-of-Africa expansion that led to the successful colonization of the planet.
This is another blow on those who claimed that humanity descends exclusively from African Homo Sapiens. 9% is more than I expected, and this is just an average for Eurasia, Oceania and the Americas. According to the map at the bottom of the article, the Neanderthal haplotype B0006 exceeds 25% of the population among Native Americans from the west coast of the USA and Canada. On the other hand it is virtually absent from East Asia, Indonesia and Papua-New Guinea. In Europe, the region of Serbia and Albania appears to have the lowest Neanderthal admixture, in the continuity of the Levant and Egypt. This would be consistent with the higher percentage of the African haplogroup E1b1b.