Caroline Calatayud

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.

TL;DR: An exhaustive in situ collection of wild, weedy and cultivated sorghum assembled in Mali and in Guinea revealed important features for the collection, conservation and biosafety of domesticated and wild Sorghum in their centre of diversity.

TL;DR: This study investigated the mechanisms whereby social boundaries associated with patterns of ethnolinguistic diversity have influenced the on-farm distribution of sorghum diversity, finding that the patterns of congruence or discordance between the nomenclature of farmers’ varieties and the structure of both genetic and morphological diversity highlight the effects of the social organization of communities on the diffusion of seed, practices, and variety nomenClature.

TL;DR: Analysis of sequence diversity for six candidate genes for grain quality indicated that sorghum domestication involved structured founder populations, while confirming a specific status for the guinea margaritiferum subrace.

TL;DR: Results suggest that farmers’ management has globally preserved sorghum genetic diversity in Niger, which was submitted to recurrent drought period and to major social changes during these last decades.