Article
Natural variation in the promoter of qRBG1/OsBZR5 underlies enhanced rice yield.
Nature communications - 3 Oct 2024
Zhang Qiuli, Wu Renhong, Hong Tao, Wang Dachuan, Li Qiaolong, Wu Jiayi, Zhang Han, Zhou Kai, Yang Hongxia, Zhang Ting, Liu JinXiang, Wang Nan, Ling Yinghua, Yang Zhenglin, He Guanghua, Zhao Fangming
Abstract excerpt
Seed size, a key determinant of rice yield, is regulated by brassinosteroid (BR); however, the BR pathway in rice has not been fully elucidated. Here, we report the cloning and characterization of the quantitative trait locus Rice Big Grain 1 (qRBG1) from single-segment substitution line Z499. Our data show that qRBG1Z is an unselected rare promoter variation that reduces qRBG1 expression to increase cell number...
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