Population genomic analysis unravels the evolutionary roadmap of pericarp color in rice  

作　　者：Lingjuan Xie Dongya Wu Yu Fang Chuyu Ye Qian-Hao Zhu Xinghua Wei Longjiang Fan 

机构地区：[1]Institute of Crop Sciences&Institute of Bioinformatics,Zhejiang University,Hangzhou 310058,China [2]Shandong(Linyi)Institute of Modern Agriculture,Zhejiang University,Linyi 310014,China [3]Shanghai ZKW Molecular Breeding Technology Co.,Ltd.,Shanghai 200234,China [4]CSIRO Agriculture and Food,Black Mountain Laboratories,Canberra,ACT 2601,Australia [5]China National Rice Research Institute,Chinese Academy of Agricultural Sciences,Hangzhou 311401,China

出　　处：《Plant Communications》2024年第3期156-166,共11页植物通讯（英文）

基　　金：supported by the Department of Science and Technology of Zhejiang Province (2022C02032 and 2020C02002);the National Natural Science Foundation of China (31971865);CIC-MCP to L.F.

摘　　要：Pigmented rice stands out for its nutritional value and is gaining more and more attention.Wild rice,domes-ticated red rice,and weedy rice all have a red pericarp and a comprehensive genetic background in terms of the red-pericarp phenotype.We performed population genetic analyses using 5104 worldwide rice acces-sions,including 2794 accessions with red or black pericarps,85 of which were newly sequenced in this study.The results suggested an evolutionary trajectory of red landraces originating from wild rice,and the split times of cultivated red and white rice populations were estimated to be within the past 3500 years.Cultivated red rice was found to feralize to weedy rice,and weedy rice could be further re-domesticated to cultivated red rice.A genome-wide association study based on the 2794 accessions with pigmented peri-carps revealed several new candidate genes associated with the red-pericarp trait for further functional characterization.Our results provide genomic evidence for the origin of pigmented rice and a valuable genomic resource for genetic investigation and breeding of pigmented rice.

关 键 词：red rice population genomics pericarp color re-domestication divergence time 

分 类 号：S511[农业科学—作物学]