posted
Excuse the term "Bantu" but this is interesting.
Autosomal Measures of genetic distance between Europe and Sub-Saharan are generally smaller than Genetic distances between Africa and other continental populations. Cavalli-Sforza states that the relatively short genetic distance is likely due to prehistoric admixture.[25] A 2009 autosomal study by Moorjani et al. that used between 500K and 1.5 Million SNPs estimated that the proportion of sub-Saharan African ancestry is 2.4% in Spain, 1.9 % in Greece and 1.5% in Tuscany. According to the authors, this is consistent, in the case of Spain, with the historically known movement of individuals of North African ancestry into Iberia, although it is possible that this estimate also reflects a wider range of mixture times.[26] A 2009 study by Auton et al. found a North-South Cline of Hapmap Yoruba haplotypes (YRI) in Europe. The study determined that South and Southwest subpopulations had the highest proportion of YRI This distribution is indicative of recurrent gene flow into Europe from both the Southwest and the Middle East. The authors suggest that the haplotype sharing between Europe and the YRI are suggestive of gene flow from Africa, albeit from West Africa and not necessarily North Africa.[27] A 2007 study conducted at Penn State University found low levels of African admixture(2.8-10%) that were distributed along a North South cline. The authors suggest that the distribution of this African admixture mirrors the distribution of haplogroup E3b-M35(E1b1b).[note 3][28] A principal component analysis of data from Human Genome Diversity Project by Reich et al. detected a West-to-East gradient of Bantu related ancestry across Eurasia. The authors suggest that after the Out of Africa migration, there was most likely a later Bantu-related gene flow into Europe.[29]
posted
To be expected! It serves as another food for thought for those who yearn to stay emotionally cocooned in the fantasy that western African ancestry is relegated to the continent only. We've heard it here before.
After all, another genetic connection ties Europeans to western Africans: Benin haplotype!
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