Regain flood adaptation in rice through a 14-3-3 protein OsGF14h

Jian Sun (), Guangchen Zhang, Zhibo Cui, Ximan Kong, Xiaoyu Yu, Rui Gui, Yuqing Han, Zhuan Li, Hong Lang, Yuchen Hua, Xuemin Zhang, Quan Xu, Liang Tang, Zhengjin Xu, Dianrong Ma and Wenfu Chen ()
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Jian Sun: Shenyang Agricultural University
Guangchen Zhang: Shenyang Agricultural University
Zhibo Cui: Shenyang Agricultural University
Ximan Kong: Shenyang Agricultural University
Xiaoyu Yu: Shenyang Agricultural University
Rui Gui: Shenyang Agricultural University
Yuqing Han: Shenyang Agricultural University
Zhuan Li: Shenyang Agricultural University
Hong Lang: Shenyang Agricultural University
Yuchen Hua: Shenyang Agricultural University
Xuemin Zhang: Shenyang Agricultural University
Quan Xu: Shenyang Agricultural University
Liang Tang: Shenyang Agricultural University
Zhengjin Xu: Shenyang Agricultural University
Dianrong Ma: Shenyang Agricultural University
Wenfu Chen: Shenyang Agricultural University

Nature Communications, 2022, vol. 13, issue 1, 1-15

Abstract: Abstract Contemporary climatic stress seriously affects rice production. Unfortunately, long-term domestication and improvement modified the phytohormones network to achieve the production needs of cultivated rice, thus leading to a decrease in adaptation. Here, we identify a 14-3-3 protein-coding gene OsGF14h in weedy rice that confers anaerobic germination and anaerobic seedling development tolerance. OsGF14h acts as a signal switch to balance ABA signaling and GA biosynthesis by interacting with the transcription factors OsHOX3 and OsVP1, thereby boosting the seeding rate from 13.5% to 60.5% for anaerobic sensitive variety under flooded direct-seeded conditions. Meanwhile, OsGF14h co-inheritance with the Rc (red pericarp gene) promotes divergence between temperate japonica cultivated rice and temperate japonica weedy rice through artificial and natural selection. Our study retrieves a superior allele that has been lost during modern japonica rice improvement and provides a fine-tuning tool to improve flood adaptation for elite rice varieties.

Date: 2022
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DOI: 10.1038/s41467-022-33320-x

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