A western Sahara centre of domestication inferred from pearl millet genomes

Burgarella, C and Cubry, P and Kane, N A and Varshney, R K and Mariac, C and Liu, X and Shi, C and Thudi, M and Couderc, M and Xu, X and Chitikineni, A and Scarcelli, N and Barnaud, A and Rhoné, B and Dupuy, C and François, O and Berthouly-Salazar, C and Vigouroux, Y (2018) A western Sahara centre of domestication inferred from pearl millet genomes. Nature Ecology & Evolution. pp. 1-7. ISSN 2397-334X

[img] PDF - Published Version
Restricted to ICRISAT users only

Download (2MB) | Request a copy


There have been intense debates over the geographic origin of African crops and agriculture. Here, we used whole-genome sequencing data to infer the domestication origin of pearl millet (Cenchrus americanus). Our results supported an origin in western Sahara, and we dated the onset of cultivated pearl millet expansion in Africa to 4,900 years ago. We provided evidence that wild-to-crop gene flow increased cultivated genetic diversity leading to diversity hotspots in western and eastern Sahel and adaptive introgression of 15 genomic regions. Our study reconciled genetic and archaeological data for one of the oldest African crops.

Item Type: Article
Divisions: Research Program : Genetic Gains
Uncontrolled Keywords: African crops, agriculture, pearl millet, cenchrus americanus, domestication origin, western Sahara, wild tocrop gene flow, genetic diversity, diversity hotspots, western and eastern Sahel, genetic and archaeological data, adaptive introgression, genome sequencing, genomics
Subjects: Others > Agriculture
Mandate crops > Millets
Mandate crops > Millets > Pearl Millet
Others > Genetics and Genomics
Others > African Agriculture
Others > Africa
Others > Sub-Saharan Africa
Depositing User: Mr Ramesh K
Date Deposited: 08 Aug 2018 04:51
Last Modified: 08 Aug 2018 04:51
URI: http://oar.icrisat.org/id/eprint/10827
Official URL: http://dx.doi.org/10.1038/s41559-018-0643-y
Acknowledgement: We are grateful to the Genotoul sequencing platform Toulouse Midi-Pyrenees for help during sequencing. We also want to thank N. Tando and the IRD itrop Plantes Santé bioinformatic platform for providing HPC resources and support for our research project. Y.V. acknowledges support from the Agence Nationale de la Recherche (ANR-13-BSV7-0017). C.B.-S. acknowledges support from Agropolis Fondation under the reference ID 1403-057 through the Investissements d’avenir programme (Labex Agro: ANR-10-LABX-0001-01).
    View Statistics

    Actions (login required)

    View Item View Item