Subsistence strategy was the main factor driving population differentiation in the bidirectional corridor of the African Sahel

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00007064%3AK01__%2F20%3AN0000100" target="_blank" >RIV/00007064:K01__/20:N0000100 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1002/ajpa.24001" target="_blank" >https://doi.org/10.1002/ajpa.24001</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Subsistence strategy was the main factor driving population differentiation in the bidirectional corridor of the African Sahel

Original language description

The Sahel belt is occupied by populations who use two types of subsistence strategy, nomadic pastoralism and sedentary farming, and who belong to three linguistic families, Niger‐Congo, Nilo‐Saharan, and Afro‐Asiatic. Little is known, however, about the origins of these two populations and their mutual genetic relationships. We have built a large dataset of mitochondrial DNA sequences and Y chromosomal STR haplotypes of pastoralists and farmers belonging to all three linguistic phyla in the western, central, and eastern parts of the Sahel. We calculated pairwise genetic, geographic, and linguistic distances between populations and analyzed the effects of geography, language, and subsistence on population genetic structure. We found that subsistence mode significantly contributed to the generally low population structure in the Sahel and that language affiliation plays a more important role for pastoralists than for farmers. We also demonstrated that geographic isolation significantly influenced the population structure of sedentary farmers but not of nomadic pastoralists. Finally, we found haplotypes shared between the Fulani and Arabic‐speaking Baggara, supporting the theory of Baggarization, which explains the recent adaptation of Arabic‐speaking nomads in the Sahel region through contact with autochthonous sub‐Saharan populations. Based on various genetic and archaeological evidence pertaining to the Sahel, we suggest that the idea of a bidirectional Sahelian corridor is valid, but that pastoralists made a more important contribution to its population structure. It is also possible that agropastoralists diverged into farmers and pastoralists in the early stages of formation of the Sahelian gene pool.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

50502 - Criminology, penology

Project

<a href="/en/project/VI20162020015" target="_blank" >VI20162020015: Introduction of New Methods of Human, Animal and Plant Material Identification in Forensic Practice</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

American Journal of Physical Anthropology

ISSN

1096-8644

e-ISSN

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Volume of the periodical

171

Issue of the periodical within the volume

3

Country of publishing house

US - UNITED STATES

Number of pages

13

Pages from-to

496-508

UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-85078021478