Format

Send to

Choose Destination
Nat Ecol Evol. 2018 Sep;2(9):1377-1380. doi: 10.1038/s41559-018-0643-y. Epub 2018 Aug 6.

A western Sahara centre of domestication inferred from pearl millet genomes.

Author information

1
IRD, Université Montpellier, DIADE, Montpellier, France. concetta.burgarella@gmail.com.
2
AGAP, Université Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France. concetta.burgarella@gmail.com.
3
IRD, Université Montpellier, DIADE, Montpellier, France. philippe.cubry@hotmail.fr.
4
Senegalese Agricultural Research Institute, Dakar, Senegal.
5
Laboratoire Mixte International LAPSE, Dakar, Senegal.
6
Center of Excellence in Genomics and Systems Biology, International Crops Research Institute for the Semi-Arid Tropics, Hyderabad, Telangana, India.
7
IRD, Université Montpellier, DIADE, Montpellier, France.
8
BGI-Shenzhen, Shenzhen, China.
9
Université Lyon 1, CNRS, Laboratoire de Biométrie et Biologie Evolutive, Lyon, France.
10
Institut des Mondes Africains, Paris, France.
11
Université Grenoble-Alpes, Centre National de la Recherche Scientifique, Grenoble, France. olivier.francois@imag.fr.
12
IRD, Université Montpellier, DIADE, Montpellier, France. cecile.berthouly@ird.fr.
13
Senegalese Agricultural Research Institute, Dakar, Senegal. cecile.berthouly@ird.fr.
14
IRD, Université Montpellier, DIADE, Montpellier, France. yves.vigouroux@ird.fr.

Abstract

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.

PMID:
30082736
DOI:
10.1038/s41559-018-0643-y
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Nature Publishing Group
Loading ...
Support Center