Article
Natural variation in the ORL4 promoter regulates rice leaf rolling to modulate leaf architecture and yield.
The Plant cell - 3 Apr 2026
Wang Xianpeng, Xu Bingxia, Hu Qianfeng, Zhao Yong, Zhang Quan, Li Honglin, Ma Zhiqi, Xu Penghui, Ma Lingling, Wu Zhenyuan, Qian Xuehan, Li Jinlong, Yang Jinyue, Liu Ruiqi, Wang Wensheng, Xu Jianlong, Li Junzhou, Chen Lei, Pan Yinghua, Sun Xingming, Li Jinjie, Zhang Hongliang, Li Zichao, Zhang Zhanying
Abstract excerpt
Rice (Oryza sativa L.) leaf rolling enhances canopy architecture and photosynthetic efficiency, thereby improving yield potential. Through genome-wide association studies (GWAS) of 802 Xian and Geng rice accessions, we identified 32 loci associated with the leaf rolling index (LRI) and characterized OUTWARD ROLLED LEAF 4 (ORL4) as a regulatory gene from natural germplasm. CRISPR/Cas9-mediated knockout of ORL4...
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