文献类型: 外文期刊
作者: Sun, Tingting 1 ; Lu, Hongwei 1 ; Wang, Kejian 1 ;
作者机构: 1.Chinese Acad Agr Sci, China Natl Rice Res Inst, State Key Lab Rice Biol & Breeding, Hangzhou 310006, Peoples R China
2.Yunnan Acad Agr Sci, Biotechnol & Germplasm Resources Inst, Kunming 650223, Peoples R China
关键词: Cultivated rice; Domestication; Wild populations; Gene pool; Phylogenetic tree
期刊名称:GENETIC RESOURCES AND CROP EVOLUTION ( 影响因子:2.0; 五年影响因子:1.9 )
ISSN: 0925-9864
年卷期: 2023 年 70 卷 6 期
页码:
收录情况: SCI
摘要: Cultivated rice (Oryza sativa) is an important food crop worldwide, and its domestication is one of the most important events in human history. Common wild rice is the direct wild progenitor of cultivated rice, however its detailed process is still controversial. In this study, we systemically identified 15 domestication regions (DRs) in the rice genome using 461 wild and 595 cultivated rice accessions. Phylogenetic trees were constructed separately for the 15 DRs to analyze the closely affiliated wild accessions. We found that most of the closely affiliated wild accessions of temperate japonica came from southern China, and most of the closely affiliated wild accessions of tropical japonica came from China and India. Wild populations in southern China and India are the source of the temperate japonica and tropical japonica gene pools (that is, the sum of the genes carried by all wild individuals in southern China and India). In addition, most of the closely affiliated wild accessions of indica rice came from Southeast Asia, China and India, suggesting that wild populations in Southeast Asia, China and India are the source of the indica gene pools. Interestingly, wild populations in India and Burma are the source of the Aus and Bas gene pools, respectively. Our results will help to further clarify the origin and domestication history of Asian cultivated rice.
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