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  Along the Indian Ocean coast: genomic variation in Mozambique provides new insights into the Bantu expansion

Semo, A., Gayà-Vidal, M., Fortes-Lima, C., Alard, B., Oliveira, S., Almeida, J., et al. (2019). Along the Indian Ocean coast: genomic variation in Mozambique provides new insights into the Bantu expansion. Molecular Biology and Evolution, msz224. doi:10.1093/molbev/msz224.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0004-DB24-D Version Permalink: http://hdl.handle.net/21.11116/0000-0004-DCB2-B
Genre: Journal Article

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 Creators:
Semo, Armando, Author
Gayà-Vidal, Magdalena, Author
Fortes-Lima, Cesar, Author
Alard, Bérénice, Author
Oliveira, Sandra, Author
Almeida, João, Author
Prista, António, Author
Damasceno, Albertino, Author
Fehn, Anne-Maria1, Author              
Schlebusch, Carina, Author
Rocha, Jorge, Author
Affiliations:
1Department of Linguistics, Max Planck Institute for Evolutionary Anthropology, Max Planck Society, ou_38005              

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 Abstract: The Bantu expansion, which started in West Central Africa around 5,000 BP, constitutes a major migratory movement involving the joint spread of peoples and languages across sub-Saharan Africa. Despite the rich linguistic and archaeological evidence available, the genetic relationships between different Bantu-speaking populations and the migratory routes they followed during various phases of the expansion remain poorly understood. Here, we analyze the genetic profiles of southwestern and southeastern Bantu-speaking peoples located at the edges of the Bantu expansion by generating genome-wide data for 200 individuals from 12 Mozambican and 3 Angolan populations using ∼1.9 million autosomal single nucleotide polymorphisms. Incorporating a wide range of available genetic data, our analyses confirm previous results favoring a “late split” between West and East Bantu speakers, following a joint passage through the rainforest. In addition, we find that Bantu speakers from eastern Africa display genetic substructure, with Mozambican populations forming a gradient of relatedness along a North-South cline stretching from the coastal border between Kenya and Tanzania to South Africa. This gradient is further associated with a southward increase in genetic homogeneity, and involved minimum admixture with resident populations. Together, our results provide the first genetic evidence in support of a rapid North-South dispersal of Bantu peoples along the Indian Ocean Coast, as inferred from the distribution and antiquity of Early Iron Age assemblages associated with the Kwale archaeological tradition.

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Language(s): eng - English
 Dates: 2019-10-08
 Publication Status: Published online
 Pages: 25
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 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1093/molbev/msz224
Other: shh2438
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Title: Molecular Biology and Evolution
  Other : Mol. Biol. Evol.
Source Genre: Journal
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Publ. Info: Oxford : Oxford University Press
Pages: - Volume / Issue: - Sequence Number: msz224 Start / End Page: - Identifier: ISSN: 0737-4038
CoNE: https://pure.mpg.de/cone/journals/resource/954925536119