Chaïr Hâna, Cornet Denis, Deu Monique, Baco Mohamed N., Agbangla A., Duval Marie-France, Noyer Jean-Louis. 2010. Impact of farmer selection on yam genetic diversity. Conservation Genetics, 11 (6) : 2255-2265.
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Quartile : Q2, Sujet : BIODIVERSITY CONSERVATION / Quartile : Q4, Sujet : GENETICS & HEREDITY
Liste HCERES des revues (en SHS) : oui
Thème(s) HCERES des revues (en SHS) : Psychologie-éthologie-ergonomie
Résumé : In the traditional yam agricultural system, by way of an ennoblement practice, farmers select tubers from the wild for cultivation. In order to assess the impact of that practice on the genetic diversity of yam, we studied the genetic structure of yams obtained after at least 3 years of ennoblement, to which farmers gave the name of traditional varieties. Cultivated yams do not always have the same genotype as homonymous traditional varieties. For the first time, we demonstrated selection by farmers through the ennoblement of genotypes found in neighbouring villages. Their adoption has a double impact: it allows an increase in the polyclonality of varieties and an indirect exchange of yam tubers between farmers. We also demonstrated that wild yams and hybrids between wild and cultivated yams are also selected. However, their adoption seems less frequent, suggesting selection and valuation of ennobled yams before integration into the cultivated pool. Finally, the adaptive advantage of wild and hybrid yams and their role in yam agrosystems are discussed.
Mots-clés Agrovoc : Dioscorea
Mots-clés géographiques Agrovoc : Bénin
Classification Agris : F30 - Génétique et amélioration des plantes
U30 - Méthodes de recherche
Champ stratégique Cirad : Axe 1 (2005-2013) - Intensification écologique
Auteurs et affiliations
- Chaïr Hâna, CIRAD-BIOS-UPR Multiplication végétative (FRA)
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Cornet Denis, CIRAD-BIOS-UPR Multiplication végétative (BEN)
ORCID: 0000-0001-9297-2680
- Deu Monique, CIRAD-BIOS-UMR DAP (FRA)
- Baco Mohamed N., Université de Parakou (BEN)
- Agbangla A., UAC (BEN)
- Duval Marie-France, CIRAD-BIOS-UPR Multiplication végétative (FRA)
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Noyer Jean-Louis, CIRAD-BIOS-UMR DAP (FRA) ORCID: 0000-0002-7389-5621
Autres liens de la publication
Source : Cirad - Agritrop (https://agritrop.cirad.fr/557120/)
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