Fonio millet genome unlocks African orphan crop diversity for agriculture in a changing climate

Abrouk Michael, Ibrahim Ahmed Hanin, Cubry Philippe, Simoníková Denisa, Cauet Stéphane, Pailles Yveline, Bettgenhaeuser Jan, Gapa Liubov, Scarcelli Nora, Couderc Marie, Zekraoui Leïla, Kathiresan Nagarajan, Cizkova Jana, Hribova Eva, Dolozel Jaroslav, Arribat Sandrine, Berges Hélène, Wieringa Jan J., Gueye Mathieu, Kane Ndjido Ardo, Leclerc Christian, Causse Sandrine, Vancoppenolle Sylvie, Billot Claire, Wicker Thomas, Vigouroux Yves, Barnaud Adeline, Krattinger Simon G.. 2020. Fonio millet genome unlocks African orphan crop diversity for agriculture in a changing climate. Nature Communications, 11:4488, 13 p.

https://doi.org/10.1038/s41467-020-18329-4

Article de revue ; Article de recherche ; Article de revue à facteur d'impact

Prévisualisation

Version publiée - Anglais
Sous licence

.
s41467-020-18329-4.pdf
Télécharger (3MB) | Prévisualisation

Url - jeu de données - Entrepôt autre : https://www.ebi.ac.uk/ena/browser/view/PRJEB36539?show=reads / Url - jeu de données - Entrepôt autre : https://doi.org/10.5061/dryad.2v6wwpzj0

Quartile : Outlier, Sujet : MULTIDISCIPLINARY SCIENCES

Résumé : Sustainable food production in the context of climate change necessitates diversification of agriculture and a more efficient utilization of plant genetic resources. Fonio millet (Digitaria exilis) is an orphan African cereal crop with a great potential for dryland agriculture. Here, we establish high-quality genomic resources to facilitate fonio improvement through molecular breeding. These include a chromosome-scale reference assembly and deep re-sequencing of 183 cultivated and wild Digitaria accessions, enabling insights into genetic diversity, population structure, and domestication. Fonio diversity is shaped by climatic, geographic, and ethnolinguistic factors. Two genes associated with seed size and shattering showed signatures of selection. Most known domestication genes from other cereal models however have not experienced strong selection in fonio, providing direct targets to rapidly improve this crop for agriculture in hot and dry environments.

Mots-clés Agrovoc : amélioration des plantes, diversité génétique (comme ressource), ressource génétique végétale, domestication des plantes, variation génétique, génomique, phytogénétique, changement climatique, Digitaria exilis

Mots-clés libres : Agricultural genetics, Genetic variation, Plant Breeding, Plant domestication

Classification Agris : F30 - Génétique et amélioration des plantes

Champ stratégique Cirad : CTS 2 (2019-) - Transitions agroécologiques

Auteurs et affiliations