A de novo evolved gene contributes to rice grain shape difference between indica and japonica
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Published:2023-09-22
Issue:1
Volume:14
Page:
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ISSN:2041-1723
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Container-title:Nature Communications
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language:en
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Short-container-title:Nat Commun
Author:
Chen RujiaORCID, Xiao Ning, Lu Yue, Tao Tianyun, Huang Qianfeng, Wang Shuting, Wang Zhichao, Chuan Mingli, Bu Qing, Lu Zhou, Wang Hanyao, Su Yanze, Ji Yi, Ding Jianheng, Gharib AhmedORCID, Liu Huixin, Zhou Yong, Tang Shuzhu, Liang Guohua, Zhang Honggen, Yi Chuandeng, Zheng Xiaoming, Cheng Zhukuan, Xu Yang, Li Pengcheng, Xu ChenwuORCID, Huang JinlingORCID, Li AihongORCID, Yang ZefengORCID
Abstract
AbstractThe role of de novo evolved genes from non-coding sequences in regulating morphological differentiation between species/subspecies remains largely unknown. Here, we show that a rice de novo gene GSE9 contributes to grain shape difference between indica/xian and japonica/geng varieties. GSE9 evolves from a previous non-coding region of wild rice Oryza rufipogon through the acquisition of start codon. This gene is inherited by most japonica varieties, while the original sequence (absence of start codon, gse9) is present in majority of indica varieties. Knockout of GSE9 in japonica varieties leads to slender grains, whereas introgression to indica background results in round grains. Population evolutionary analyses reveal that gse9 and GSE9 are derived from wild rice Or-I and Or-III groups, respectively. Our findings uncover that the de novo GSE9 gene contributes to the genetic and morphological divergence between indica and japonica subspecies, and provide a target for precise manipulation of rice grain shape.
Publisher
Springer Science and Business Media LLC
Subject
General Physics and Astronomy,General Biochemistry, Genetics and Molecular Biology,General Chemistry,Multidisciplinary
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