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Gain-of-function OsGLW3: a dominant positive regulator of grain length improving hybrid rice quality.

Plant physiology - 2 Jun 2026

Yiwei Kang, Yue Zhang, Dian Li, Hongmei Chen, Fazhan Qi, Weixun Wu, Zhengping Zhou, Junlin Fu, Lianping Sun, Xiaodeng Zhan, Liyong Cao, Yuqing He, Yingxin Zhang, Shihua Cheng

Abstract excerpt

Size is a critical determinant of rice grain appearance quality and yield. In this study, we isolated a dominant mutant of rice grain size, RE10498, from an EMS-induced mutant library of ZH8015 characterized by long grains. Using the MutMap method, we cloned the causal gene, OsGLW3, which encodes an expressed protein of unknown function. Targeted editing of position 3,119 in the OsGLW3 coding region to "A" in the...

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PMID: 42179260
DOI: 10.1093/plphys/kiag296

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