02287nam a2200313Ia 4500 MX-MdCICY 20260521091549.0 CICY B-17158 The rise and fall of African rice cultivation revealed by analysis of 246 new genomes Current Biology, 28(14), p.2274-2282.e6, 2018 African rice (Oryza glaberrima)was domesticated independently from Asian rice. The geographical origin of its domestication remains elusive. Using 246 new whole-genome sequences, we inferred the cradle of its domestication to be in the Inner Niger Delta. Domestication was preceded by a sharp decline of most wild populations that started more than 10,000 years ago. The wild population collapse occurred during the drying of the Sahara. This finding supports the hypothesis that depletion of wild resources in the Sahara triggered African rice domestication. African rice cultivation strongly expanded 2,000 years ago. During the last 5 centuries, a sharp decline of its cultivation coincided with the introduction of Asian rice in Africa. A gene, PROG1, associated with an erect plant architecture phenotype, showed convergent selection in two rice cultivated species, Oryza glaberrima from Africa and Oryza sativa from Asia. In contrast, a shattering gene, SH5, showed selection signature during African rice domestication, but not during Asian rice domestication. Overall, our genomic data revealed a complex history of African rice domestication influenced by important climatic changes in the Saharan area, by the expansion of African agricultural society, and by recent replacement by another domesticated species. CROP ORYZA GLABERRIMA ORYZA BARTHII DOMESTICATION POPULATION GENOMICS RICE Cubry, P. Tranchant-Dubreuil, C. Thuillet, A. C. Monat, C. Ndjiondjop, M. N. Labadie, K. Burgarella, C. https://drive.google.com/file/d/15X2bC7nvqlSiEYQ2KgDGs7tkIZAGbm45/view?usp=drivesdk Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx Loc REF1 250602s9999 xx |||||s2 |||| ||und|d 27260 27260 0 0 Loc 0 0 F1 CICY CICY RE 2025-06-25 0 B-17158 2025-06-25 16:02:05 2025-06-25 REF1