African rice population genomics dataset or title of the article : "The Rise and Fall of African Rice Cultivation Revealed by Analysis of 246 New Genomes"

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.https://doi.org/10.1016/j.cub.2018.05.066

非洲稻（Oryza glaberrima）独立于亚洲栽培稻被驯化，其驯化的地理起源至今仍不明晰。本研究依托246条全新全基因组序列，推断其驯化起源中心为尼日尔河内陆三角洲。在驯化事件发生前，多数野生种群便已出现急剧衰退，该衰退始于距今1万余年之前，且恰好发生于撒哈拉沙漠干旱化阶段。这一发现佐证了"撒哈拉地区野生资源枯竭触发非洲稻驯化"的假说。非洲稻的种植规模在约2000年前实现大幅扩张；而在近5个世纪以来，其种植面积的急剧下降与亚洲栽培稻传入非洲的时间高度重合。与植株直立株型表型相关的基因PROG1，在两个栽培稻物种——非洲稻（Oryza glaberrima）与亚洲栽培稻（Oryza sativa）中均检测到趋同选择信号。与之相反，落粒基因SH5仅在非洲稻的驯化过程中呈现选择特征，并未在亚洲栽培稻的驯化历程中出现选择信号。总体而言，本研究的基因组数据揭示了非洲稻驯化的复杂历史：其进程受到撒哈拉地区重大气候变化、非洲农业社会扩张的共同影响，同时也在近期被另一驯化物种所替代。https://doi.org/10.1016/j.cub.2018.05.066