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M1, R1*, E, U6 are all African lineages, not Eurasian.....
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[QUOTE]Originally posted by The Explorer: [QB] As for this, MindoverMatter718, [i]There is no R1a or R1b in Africa hence there is no Eurasian admixture![/i] I wouldn't say there is no R1b in Africa, but it is rather rare, in so far as the [i]European[/i] examples are concerned. One would expect it to be considerably represented on coastal northern African areas, given the proximity, but that doesn't bear out in study after study. There are low frequencies of the R1b in northeastern Africa, and randomly scattered across parts of the Sahara and Sahel, but interestingly, drops fairly sharply in the coastal northwestern Africa areas to almost negligible frequencies, where maternal markers closer to the European examples appear most prevalently. In fact, if the aforementioned Berniell-Lee et al. are anything to go by, Africa [by way of central African samples] seems to be unique with its upstream R1b1 family of paraphyletic clades. What about R1a? From what I can tell at this point, it is even rarer on the continent than R1b. I am sure there are Indian communities in Africa where R1a dominates, but African ethnic groups themselves, not much revelation here -- when it comes to R1a. Ps - Look in [URL=http://img194.imageshack.us/img194/9371/hassan2008phylo.jpg]here[/URL]. R1b has been founded in a number of Sudanese communities, generally in low frequencies, but one interesting standout from the bunch, is the elevated frequency amongst the Hausa sample. Though considerably lower than that of the Hausa (~ 41%), the Meseria appears to be next in line in exhibiting noticeable frequencies of the marker (~25%). [/QB][/QUOTE]
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