Wild rice GL12 synergistically improves grain length and salt tolerance in cultivated rice

Yanyan Wang, Wenxi Chen, Meng Xing, Jiaqiang Sun, Shizhuang Wang, Ziyi Yang, Jingfen Huang, Yamin Nie, Mingchao Zhao, Yapeng Li, Wenlong Guo, Yinting Wang, Ziyi Chen, Qiaoling Zhang, Jiang Hu, Yunhai Li, Ke Huang, Xiaoming Zheng, Leina Zhou, Lifang Zhang, Yunlian Cheng, Qian Qian (), Qingwen Yang () and Weihua Qiao ()
Additional contact information
Yanyan Wang: Chinese Academy of Agricultural Sciences
Wenxi Chen: Chinese Academy of Agricultural Sciences
Meng Xing: Chinese Academy of Agricultural Sciences
Jiaqiang Sun: Chinese Academy of Agricultural Sciences
Shizhuang Wang: Chinese Academy of Agricultural Sciences
Ziyi Yang: Chinese Academy of Agricultural Sciences
Jingfen Huang: Chinese Academy of Agricultural Sciences
Yamin Nie: Chinese Academy of Agricultural Sciences
Mingchao Zhao: Chinese Academy of Agricultural Sciences
Yapeng Li: Chinese Academy of Agricultural Sciences
Wenlong Guo: Chinese Academy of Agricultural Sciences
Yinting Wang: Chinese Academy of Agricultural Sciences
Ziyi Chen: Chinese Academy of Agricultural Sciences
Qiaoling Zhang: Chinese Academy of Agricultural Sciences
Jiang Hu: Chinese Academy of Agricultural Sciences
Yunhai Li: Chinese Academy of Sciences
Ke Huang: Chinese Academy of Sciences
Xiaoming Zheng: Chinese Academy of Agricultural Sciences
Leina Zhou: Chinese Academy of Agricultural Sciences
Lifang Zhang: Chinese Academy of Agricultural Sciences
Yunlian Cheng: Chinese Academy of Agricultural Sciences
Qian Qian: Chinese Academy of Agricultural Sciences
Qingwen Yang: Chinese Academy of Agricultural Sciences
Weihua Qiao: Chinese Academy of Agricultural Sciences

Nature Communications, 2024, vol. 15, issue 1, 1-12

Abstract: Abstract The abounding variations in wild rice provided potential reservoirs of beneficial genes for rice breeding. Maintaining stable and high yields under environmental stresses is a long-standing goal of rice breeding but is challenging due to internal trade-off mechanisms. Here, we report wild rice GL12W improves grain length and salt tolerance in both indica and japonica genetic backgrounds. GL12W alters cell length by regulating grain size related genes including GS2, and positively regulates the salt tolerance related genes, such as NAC5, NCED3, under salt stresses. We find that a G/T variation in GL12 promoter determined its binding to coactivator GIF1 and transcription factor WRKY53. GIF1 promotes GL12W expression in young panicle and WRKY53 represses GL12W expression under salt stresses. The G/T variation also contributes to the divergence of indica and japonica subspecies. Our results provide useful resources for modern rice breeding and shed insights for understanding yield and salt tolerance trade-off mechanism.

Date: 2024
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DOI: 10.1038/s41467-024-53611-9

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