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Genetic Closeness of the East/West African SNP population clusters (blog source)
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[QUOTE]Originally posted by Gor: [QB] This is currently over at Dienekes: http://dienekes.blogspot.co.uk/2014/11/genome-of-kostenki-14-upper-paleolithic.html Genomic structure in Europeans dating back at least 36,200 years http://www.sciencemag.org/content/early/2014/11/05/science.aaa0114 [QUOTE]Our findings reveal the timing of divergence of western Eurasians and East Asians to be more than 36,200 years ago and that European genomic structure today dates back to the Upper Paleolithic and derives from a meta-population that at times stretched from Europe to central Asia. [/QUOTE]Then we have this: [IMG]http://1.bp.blogspot.com/-jlF6eSOWmnk/VFwpvCk9MjI/AAAAAAAAJ1o/lkmfDp204OU/s1600/F2.large.jpg[/IMG] And: "It seems to derive Europeans as a 3-way mixture that is basically identical to that of Lazaridis et al., with some relabeling of populations (MHG=WHG and NEOL=EEF)". Why this is all invalid - "Yet, the legacy of racial thinking lingers throughout the human sciences. Populations are often still treated as more or less independently evolving subspecies, in both analyses of their relationships and in theories of their origin [...] Who else would analyze populations this way? The answer is surprisingly many, as tree analysis requires the assumption of branching (independent evolution) in order to be valid and tree analysis is the normal way that the genetic relationships of populations (or races) are shown. Relationship trees for human populations fail to meet the criterion of treeness: if trees validly depict relationships, we can expect that all the endpoints on one side of a split (i.e., populations or races) are equally related to all the endpoints on the other side. This is clearly not the case for human populations (Templeton, 1997)." ( [URL=https://repozytorium.amu.edu.pl/jspui/bitstream/10593/3400/1/01wolp.pdf]Wolpoff & Caspari[/URL], 2001) *There never was "divergence" between any human population: this would require branching through isolation. [/QB][/QUOTE]
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