

Bantu languages are spoken by about 310 million Africans, yet the genetic history of Bantu-speaking populations remains largely unexplored. We generated genomic data for 1318 individuals from 35 populations in western central Africa, where Bantu languages originated. We found that early Bantu speakers first moved southward, through the equatorial rainforest, before spreading toward eastern and southern Africa. We also found that genetic adaptation of Bantu speakers was facilitated by admixture with local populations, particularly for the HLA and LCT loci. Finally, we identified a major contribution of western central African Bantu speakers to the ancestry of African Americans, whose genomes present no strong signals of natural selection. Together, these results highlight the contribution of Bantu-speaking peoples to the complex genetic history of Africans and African Americans. © 2017, American Association for the Advancement of Science. All rights reserved.
| GEOBASE Subject Index: | adaptationgenetic analysisgenomicshuman evolutionnatural selection |
|---|---|
| EMTREE medical terms: | AfricaAfricanAfrican AmericanArticleCentral AfricaCentral Africanevolutionary adaptationgene locusgenomegenomicshumanlanguagemajor clinical studynatural selectionNorth Americapopulationpopulation dispersalpriority journalrain forestspeechadaptationgene locusgeneticslanguagemigrationsingle nucleotide polymorphismspeech |
| Regional Index: | Central AfricaNorth America |
| EMTREE drug terms: | HLA antigenlactase |
| MeSH: | Adaptation, PhysiologicalAfrica, CentralAfrican AmericansGenetic LociHLA AntigensHuman MigrationHumansLactaseLanguageNorth AmericaPolymorphism, Single NucleotideRainforestSpeech |
lactase, 9031-11-2;
HLA Antigens; Lactase
| Funding sponsor | Funding number | Acronym |
|---|---|---|
| National Human Genome Research Institute See opportunities | ||
| Agence Nationale de la Recherche See opportunities | ||
| Centre National de la Recherche Scientifique | ||
| ANR-14-CE02-0003-01 | ||
| Institut Pasteur |
We thank all participants who donated samples and participated in this study. We thank C. Schlebusch and G. Hellenthal for helpful discussions. We thank E. Soumonni, a historian whose advice guided the recruitment of Beninese individuals, and J.-P. Chippaux (CERPAGE, Cotonou, Benin) for his help with local authorities. We thank the African Variation Genome Project, the Data Access Committee Chair for the National Human Genome Research Institute (particularly V. Ota Wang), the Electronic Medical Records and Genomics (eMERGE) Genome-Wide Association Study, the Multiethnic Cohort Study, the Gene, Environment Association Studies consortium (GENEVA), and the Health Aging and Body Composition (Health ABC) Study for kindly providing access to their data. Detailed acknowledgments can be found elsewhere (10). This work was funded by the Institut Pasteur, the Centre National de la Recherche Scientifique (CNRS), Agence Nationale de la Recherche (ANR) grant AGRHUM (ANR-14-CE02-0003-01), and the "Histoire du G?nome des Populations Humaines Gabonaises" project (Institut Pasteur/Republic of Gabon). The newly generated SNP genotype data have been deposited in the European Genome-Phenome Archive under accession code EGAS00001002078.
Patin, E.; Human Evolutionary Genetics, Institut Pasteur, Paris, France;
© Copyright 2017 Elsevier B.V., All rights reserved.