Demographic and Selection Histories of Populations Across the Sahel/Savannah Belt.

ABSTRACT: The Sahel/Savannah belt harbors diverse populations with different demographic histories and different subsistence patterns. However, populations from this large African region are notably under-represented in genomic research. To investigate the population structure and adaptation history of populations from the Sahel/Savannah space, we generated dense genome-wide genotype data of 327 individuals-comprising 14 ethnolinguistic groups, including 10 previously unsampled populations. Our results highlight fine-scale population structure and complex patterns of admixture, particularly in Fulani groups and Arabic-speaking populations. Among all studied Sahelian populations, only the Rashaayda Arabic-speaking population from eastern Sudan shows a lack of gene flow from African groups, which is c

SUBMITTER: Fortes-Lima C 

PROVIDER: S-EPMC9582163 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature