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[QUOTE]Originally posted by Elmaestro: [QB] [b]@Oshun[/b] Its the opposite really, treating SSA as its own genetic group helps OOA's better recognize fine scale population structure for the very fact that SSA's are diverse and heterogenous. The problem is using a single SSA population as the end all representation of all SSA. The next problem is defining SSA, for example, let's say a post bottleneck population isolated from the ancestors of contemporary Eurasian populations introgressed with a currently identified SSA group like Yorubans but not any other non ssa population. When we sequence them there's no mtdna L, no Yhap E3a, A, B and little E1a and E3b maybe an F or so, and they show some autosomal affinity to near eastern & North Africans. Would we consider this a SSAn population? Or what if we find a population with basal mtdna L and Yhap E/CT but no-little modern SSA affinity BELOW the Sahara, will that ancient group be considered SSA? These things are possibilities but how things are right now not much non-Africans would care. SSA being treated as a singular roll group is a quick and dirty way to measure recent genetic exchange. --oh damn-- Didn't notice I was replying in this **** thread. No shade to Brandon. [/QB][/QUOTE]
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