{"id":59232,"date":"2011-12-28T23:05:20","date_gmt":"2011-12-29T07:05:20","guid":{"rendered":"http:\/\/blogs.discovermagazine.com\/gnxp\/?p=15063"},"modified":"2011-12-28T23:05:20","modified_gmt":"2011-12-29T07:05:20","slug":"basque-genetic-distinctiveness-again","status":"publish","type":"post","link":"https:\/\/www.razib.com\/wordpress\/2011\/12\/28\/basque-genetic-distinctiveness-again\/","title":{"rendered":"Basque genetic distinctiveness (again)"},"content":{"rendered":"

With all the talk about Basques<\/a> I decided to do my own analysis with Admixture<\/a>. Dienekes<\/a> gave me a copy of his IBS file, which has all the 1000 Genomes Spanish samples, including Basques. I merged it with the HGDP sample, which has French Basques (just “Basques” in the plots below) and French non-Basques. I pruned most of the populations, but kept the Mozabites, which are a Berber group from Algeria. The number of markers was ~350,000, and I ran it up to K = 8, or 8 component populations. I stopped there because the components were starting to break up in a very choppy manner.<\/p>\n

In general I do think that the idea that non-Basque Spaniards have Moorish genetic input seems supported.<\/b> It isn’t definitive though. And you have to be careful, there are lower parameter values where Sardinians seem to have an affinity with Mozabites to a great extent, even more than Spaniards. But that disappears as you move up the number of K’s. But who is to say which K is the correct K? The consistent Sub-Saharan African among non-Basque Spaniards (also evident in the Behar et al. data set) component probably convinces me that there was a Moorish impact, since these are likely to have come with the Islamic conquest, and not Phoenicians.<\/p>\n

All the files from the Admixture run (and csv files with tabular results) are here<\/a>.<\/p>\n

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