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

J 2020

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

NOVACKOVA, J; M CIZKOVA; MG MOKHTAR; P DUDA; V STENZL et al.

Základní údaje

Originální název

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

Autoři

NOVACKOVA, J; M CIZKOVA; MG MOKHTAR; P DUDA; V STENZL; P TRISKA; Zuzana HOFMANOVÁ a V CERNY

Vydání

American Journal of Physical Anthropology, Hoboken, Wiley, 2020, 0002-9483

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 2.868

Označené pro přenos do RIV

DOI

https://doi.org/10.1002/ajpa.24001

UT WoS

000506705000001

Klíčová slova anglicky

African Sahel; Baggarization; mtDNA; subsistence; Y chromosome

Změněno: 6. 1. 2021 14:09, Zuzana Hofmanová, Dr. rer. nat.

Anotace

V originále

Objectives 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. Materials and Methods 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. Results 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. Conclusions 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.

Citovat

NOVACKOVA, J; M CIZKOVA; MG MOKHTAR; P DUDA; V STENZL; P TRISKA; Zuzana HOFMANOVÁ a V CERNY. Subsistence strategy was the main factor driving population differentiation in the bidirectional corridor of the African Sahel. American Journal of Physical Anthropology. Hoboken: Wiley, 2020, roč. 171, č. 3, 13 s. ISSN 0002-9483. Dostupné z: https://doi.org/10.1002/ajpa.24001.

@article{1720356,
   author = {Novackova, J and Cizkova, M and Mokhtar, MG and Duda, P and Stenzl, V and Triska, P and Hofmanová, Zuzana and Cerny, V},
   article_location = {Hoboken},
   article_number = {3},
   doi = {https://doi.org/10.1002/ajpa.24001},
   keywords = {African Sahel; Baggarization; mtDNA; subsistence; Y chromosome},
   language = {eng},
   issn = {0002-9483},
   journal = {American Journal of Physical Anthropology},
   title = {Subsistence strategy was the main factor driving population differentiation in the bidirectional corridor of the African Sahel},
   volume = {171},
   year = {2020}
}

TY  - JOUR
ID  - 1720356
AU  - Novackova, J - Cizkova, M - Mokhtar, MG - Duda, P - Stenzl, V - Triska, P - Hofmanová, Zuzana - Cerny, V
PY  - 2020
TI  - Subsistence strategy was the main factor driving population differentiation in the bidirectional corridor of the African Sahel
JF  - American Journal of Physical Anthropology
VL  - 171
IS  - 3
PB  - Wiley
SN  - 00029483
KW  - African Sahel
KW  - Baggarization
KW  - mtDNA
KW  - subsistence
KW  - Y chromosome
N2  - Objectives 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. Materials and Methods 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. Results 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. Conclusions 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.
ER  -

NOVACKOVA, J; M CIZKOVA; MG MOKHTAR; P DUDA; V STENZL; P TRISKA; Zuzana HOFMANOVÁ a V CERNY. Subsistence strategy was the main factor driving population differentiation in the bidirectional corridor of the African Sahel. \textit{American Journal of Physical Anthropology}. Hoboken: Wiley, 2020, roč.~171, č.~3, 13 s. ISSN~0002-9483. Dostupné z: https://doi.org/10.1002/ajpa.24001.

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