G
Gilles Bezançon
Researcher at Institut de recherche pour le développement
Publications - 27
Citations - 794
Gilles Bezançon is an academic researcher from Institut de recherche pour le développement. The author has contributed to research in topics: Genetic diversity & Population. The author has an hindex of 13, co-authored 27 publications receiving 723 citations.
Papers
More filters
Journal ArticleDOI
Diversity of wild and cultivated pearl millet accessions (Pennisetum glaucum [L.] R. Br.) in Niger assessed by microsatellite markers
Cédric Mariac,Viviane Luong,Issoufou Kapran,Aïssata Mamadou,Fabrice Sagnard,Monique Deu,Jacques Chantereau,Bruno Gérard,Jupiter Ndjeunga,Gilles Bezançon,Jean Louis Pham,Yves Vigouroux +11 more
TL;DR: A significantly lower number of alleles and lower gene diversity in cultivated pearl millet accessions than in wild accessions is shown, which contrasts with a previous study using iso-enzyme markers showing similar genetic diversity between cultivated and wild pearl Millet populations.
Journal ArticleDOI
Association studies identify natural variation at PHYC linked to flowering time and morphological variation in pearl millet.
Abdoul-Aziz Saidou,Cédric Mariac,Vivianne Luong,Jean-Louis Pham,Gilles Bezançon,Yves Vigouroux +5 more
TL;DR: An association framework to identify genetic variations associated with the phenotype in pearl millet was developed and a significant association between genetic variation in this gene and these characters was confirmed.
Journal ArticleDOI
Changes in the diversity and geographic distribution of cultivated millet ( Pennisetum glaucum (L.) R. Br.) and sorghum ( Sorghum bicolor (L.) Moench) varieties in Niger between 1976 and 2003
Gilles Bezançon,Jean Louis Pham,Monique Deu,Yves Vigouroux,Fabrice Sagnard,Fabrice Sagnard,Cédric Mariac,Issoufou Kapran,Aïssata Mamadou,Bruno Gérard,Jupiter Ndjeunga,Jacques Chantereau +11 more
TL;DR: No erosion of varietal diversity was noted on a national scale during the period covered and this highlights that farmers’ management can preserve the diversity of millet and sorghum varieties in Niger despite recurrent and severe drought periods and major social changes.
Journal ArticleDOI
Niger-wide assessment of in situ sorghum genetic diversity with microsatellite markers.
Monique Deu,Fabrice Sagnard,Jacques Chantereau,Caroline Calatayud,Damien Herault,Cédric Mariac,Jean Louis Pham,Yves Vigouroux,Issoufou Kapran,Pierre C. Sibiry Traoré,Aïssata Mamadou,Bruno Gérard,Jupiter Ndjeunga,Gilles Bezançon +13 more
TL;DR: The geographical situation of Niger, where typical western African, central African and eastern Sahelian African sorghum races converge, explained the high observed genetic diversity and was responsible for the interactions among the ethnic, geographical and botanical structure revealed in this study.
Journal ArticleDOI
Selection for earlier flowering crop associated with climatic variations in the Sahel.
Yves Vigouroux,Cédric Mariac,Stéphane De Mita,Jean Louis Pham,Bruno Gérard,Issoufou Kapran,Fabrice Sagnard,Monique Deu,Jacques Chantereau,Abdou Ali,Jupiter Ndjeunga,Viviane Luong,Anne-Céline Thuillet,Abdoul-Aziz Saidou,Abdoul-Aziz Saidou,Gilles Bezançon +15 more
TL;DR: It is concluded that recurrent drought can lead to selection for earlier flowering in a major Sahelian crop and Surprisingly, these results suggest that diffusion of crop varieties is not the main driver of short term adaptation to climatic variation.