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OT: R*-M173 back migration
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[QUOTE]Originally posted by rasol: [QB] [QUOTE]Originally posted by Yom: [qb] Rasol, it's possible, but parsimony would lead us to accept that R* arose outside of Africa and then entered Cameroon. [/qb][/QUOTE]....not really, because you require that R1* die out in Eurasia, only to be replaced by successor lineages. You then have to account for why the lineage is most frequent in central africa, then egypt, then lavantine immediately bordering egypt, and then dies out beyound levantine. Don't you find it odd that this lineage does not exist in the Maghreb, Europe or Northern Asia? That's no more parismonous than R1* deriving from a K1 predessesor within Africa. I definitely agree though that between M168 and M173 - some of these lineages must have developed outside of Africa, they can't *all* have developed in AFrica, that would be unreasonable to suggest so. In genetics at present every lineage claimed to be African is either found mostly or entirely in Africa, has and African predecessor, or both. [like E3B]. Well, R1* is not found mostly in the Levant, is not found at all in Northern Eurasia. It has some predecessor found in differnt parts of Eurasia - *and* Africa. So I agree with Keita, it's not parsimonious to simply *assign* these lineages to Eurasia. The picture Keita provides of post OOA Peleolithic hunter gatherers roaming NorthEast Africa and SouthWest Asia and spawning apparently -non contiguous- lineages in this area at the time, is the most sensible explanation of the data i've heard to date. [/QB][/QUOTE]
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