tag:blogger.com,1999:blog-7785493.post8937059841590062985..comments2024-01-04T04:11:55.717+02:00Comments on Dienekes’ Anthropology Blog: Geography and human adaptation (Coop et al. 2009)Dienekeshttp://www.blogger.com/profile/02082684850093948970noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-7785493.post-37845535341356368982009-06-06T11:34:42.495+03:002009-06-06T11:34:42.495+03:00"gene variants tend to be distributed through..."gene variants tend to be distributed throughout the world in patterns that reflect ancient population movements and other aspects of population history". <br /><br />And that seems to be so for the geographic variation of most species, so I'm not surprised it has been important for human genetic variation.terrythttps://www.blogger.com/profile/17327062321100035888noreply@blogger.comtag:blogger.com,1999:blog-7785493.post-21874974324000299252009-06-06T09:27:29.665+03:002009-06-06T09:27:29.665+03:00I have written more extensely at my blog on this p...I have written more extensely <a href="http://leherensuge.blogspot.com/2009/06/role-of-geography-in-human-adaptation.html" rel="nofollow">at my blog</a> on this paper. Just two brief comments:<br /><br />1. West and East Eurasians appear clearly as distinct (within the Eurasian supergroup and within the limited variability of human genetics). They also appear as distinct in pigmentation startegies. Overall this suggests that the coastal migration model is correct and that different founder effects happened in South Asia and SE Asia, including pigmentation genes. <br /><br />2. Selection is rather weak anyhow and chaotic accidents (founder effects, drift) instead are more important, even in the pre-selection of what moderate fitness selection would eventually make dominant.Majuhttps://www.blogger.com/profile/12369840391933337204noreply@blogger.com