We screened 2.5 million SNPs in 161 individuals from 13 Sahelian populations from Western, Central and Eastern parts of the belt, and including both nomadic and sedentary groups
We confirmed the role of the Sahel belt as a main corridor for human migrations across the African continent. Strong admixture was observed in both Central and Eastern Sahelian populations, with North Africans and Near Eastern/Arabians respectively, but it was inexistent in Western Sahelian populations. Genome-wide local ancestry inference in admixed Sahelian populations revealed several candidate regions that were significantly enriched for non-autochthonous haplotypes, and many showed to be under positive selection.
- Type: Other
- Archiver: European Genome-Phenome Archive (EGA)
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Extensive Admixture and Selective Pressure Across the Sahel Belt.
Genome Biol Evol 7: 2015 3484-3495
Genetic history of Chad.
Am J Phys Anthropol 167: 2018 804-812