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Genomic Ancestry of North Africans Supports Back-to-Africa Migrations Brenna M. Henn
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[QUOTE]Originally posted by xyyman: [QB] Just saw your post. Let me look again [QUOTE]Originally posted by beyoku: [qb] [QUOTE]Originally posted by xyyman: [qb] Beyoku, I will get back at you. Double checking a few things on SNPs. To get started...how am I screwing up? You said I misunderstand the Behar chart. I am saying Sardinians carry high frequency of North Africans components(k-10 clearly shows that) as displayed by light blue. The dark blue being European. Set me straight. Careful now.....go slowly ;) [/qb][/QUOTE][IMG]http://blogs.discovermagazine.com/gnxp/files/2011/01/ethio2.png[/IMG] The light blue component in K=10 is NOT a North African specific component. It is a rather generic Southern European component. In the Previous K's the Light blue is a somewhat genetic Eurasian component. Peaking in Yemeni Jews and Saudis at different times and in Mozabites at K=9. Although it peaks in Mozabites at K=9, notice it is not a Maghreb specific component. It is generic: Romainians, French, Hungarians et al do not derive 1/3rd of their ancestry from the Maghreb. Going on to k=10 The magreb specific component materializes and is in Dark Purple. I have no idea how you can miss this...it comprises the majority component in Moroccans and Mozabites. This is similar to the Light blue in Henn (K=8). In K=10 what you are seeing is a combination of Southern European (Light Blue), Northern European (Dark Blue) and what is best described as "West Asian": (Light Green). These components have been verified time and time again using structure/admixture. Looking at K=10 the purple Maghreb component is very low outside Africa and nearly terminated in Europe...only showing a very minor presence in Spaniards. The lack of west Asian (Light Green) in Horn Africans and Maghreb but its presence in the Middle East and Egypt has always been seen as an indication that backflow bringing a South West Asian component into Africa (Light Purple/Blue) was at the time void of a more West Asian signature (Light Green) now found in the Middle Near/East. [/qb][/QUOTE] [/QB][/QUOTE]
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