Neandertals and non-African modern humans share patterns of genetic variation that have been interpreted as a signature of interbreeding. However, this pattern could also be due to population sub-structure that pre-dated the Human-Neandertal divergence. To distinguish these two alternatives, the authors developed a likelihood method that uses the distribution of genealogical histories to estimate all relevant parameters from three genomes. The results reject ancestral population structure in Africa and strongly favor Neandertal admixture in Eurasia. This new method will be particularly useful for analyzing extinct or rare species with limited samples. genetics.org/content/196/4/NP.full#p-23 They dont really mention what these methods of analysis are, does anybody have any clue what they are doing? What relevant parameters from these genomes distinguishes between admixture and a common ancestor? They dont tell us. Maybe they think us laymen dont really wanna waste our time with those technical details.
Posted on: Thu, 10 Apr 2014 14:12:28 +0000
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