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If some of the prominent dynastic Egyptians were 25% Eurasian would it bother you?
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[QUOTE]Originally posted by Djehuti: [QB] The problem with studies like the one Lioness posted in the OP is that geneticists truly haven't figured out the exact 'dividing line', so to speak, between Africans and Eurasians in Southwest Asia. It's known and virtually accepted by all experts that all Eurasians are derived from Africans, but exactly where in the genome this distinction first took place is a matter of debate just like with uniparental markers in the Y chromosome and mitochondria. What complicates things even more and adds confusion is the fact that there were multiple waves out of Africa in addition to possible back-migrations. That said, one may question exactly how "Eurasian" the back-migrants really were. For example, there was a 2013 study by Lazardis et al. on the forebears of Neolithic culture in Europe. Lazardis discovered an autosomal component strongly associated with the Neolithic immigrants which he calls “basal Eurasian” and is found in varying frequencies among modern populations of Europe, North Africa, Southwest Asia, and as far east as northern India, again all regions associated with Neolithic expansion. Lazardis postulates that this original ‘basal Eurasian’ population from which this component arose was genetically intermediate between the Mbuti pygmies of central Africa and say Persians of western Eurasia. This leaves a vast area of the Great Rift Valley--from east Africa to the Jordan Valley, and on either side of the Red Sea in the Nile Valley or Arabia where this population could have arisen. And even if one were to take Africa out of the picture and leave only Southwest Asia, they are still intermediate with Central African pygmies! It’s not even known when exactly these “basal Eurasians” arose, though since they are equally intermediate to west Eurasians like Iranians but very distant from east Eurasians, they either were part of the initial OOA but remained isolated while other populations branched off OR they represent a later African expansion. Either way, it appears they were not quite as divergent from Africans as many Euronuts would wish them to be. In fact, among the Neolithic skeletal remains of Stuttgart, southern Germany which Lazardis et al. studied, the individual which had the strongest sample of “basal Eurasian” component happened to be a male whose craniofacial traits were very African-like! So again, while I do not at all deny back-migrations into Africa in ancient times as such has occurred even in more recent historical times, I do seriously call into question these sweeping claims of “extensive Eurasian admixture” throughout the whole African continent! This is no different from Euronut claims that YAP on the Y-chromosome (hg DE) is “Eurasian” therefore making the entire hg E clade “Eurasian” even though a study published last month by Ottoni et al. has confirmed the presence of D-M174 (D*) in West Africa!! I don’t know if this is the case with Lioness personally but I have noticed a trend among Euronuts where due to their miserable failure at white-washing the Egyptians and other North Africans, they then go for the crazier tactic of white-washing populations throughout Sub-Sahara including Pygmies and Khoisan which this OP study seems to be doing. [/QB][/QUOTE]
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