The atypical Dof transcriptional factor OsDes1 contributes to stay-green, grain yield, and disease resistance in rice

IF 12.5 1区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Science Advances Pub Date : 2024-08-23 DOI:10.1126/sciadv.adp0345

Tiancheng Qiu, Shuang Wei, Kexing Fang, Man Zhang, Yixin Li, Yayan Feng, Yapu Cheng, Sanwei Zhang, Jiagen Tian, Aiai Gao, Qingya Yang, Mengni Yang, Vijai Bhadauria, Jinjie Li, You-Liang Peng, Wensheng Zhao

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Abstract

The regulation of leaf senescence and disease resistance plays a crucial role in determining rice grain yield and quality, which are important to meet the ever-increasing food demands of the world. Here, we identified an atypical Dof transcriptional factor OsDes1 that contributes to the stay-green phenotype, grain yield, and disease resistance in rice. The expression level of OsDes1 is positively associated with stay-green in natural variations of japonica rice, suggesting that OsDes1 would be alternatively used in breeding programs. Mechanistically, OsDes1 targets the promoter of the Rieske FeS protein gene OsPetC to activate its expression and interacts with OsPetC to protect against its degradation, thus promoting stay-green and ultimately improving the grain yield. OsDes1 also binds to the promoter region of defense-related genes, such as OsPR1b, and activates their expression, leading to enhanced disease resistance. These findings offer a potential strategy for breeding rice to enhance grain yield and disease resistance.

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非典型Dof转录因子OsDes1有助于水稻的留绿、谷物产量和抗病性。

叶片衰老和抗病性的调控在决定水稻的产量和品质方面起着至关重要的作用，而水稻的产量和品质对于满足全球日益增长的粮食需求非常重要。在这里，我们发现了一种非典型的Dof转录因子OsDes1，它对水稻的留绿表型、谷物产量和抗病性都有贡献。在粳稻的自然变异中，OsDes1的表达水平与留绿呈正相关，这表明OsDes1可在育种计划中替代使用。从机理上讲，OsDes1靶向Rieske FeS蛋白基因OsPetC的启动子，激活其表达，并与OsPetC相互作用，防止其降解，从而促进留绿，最终提高谷物产量。OsDes1 还能与 OsPR1b 等防御相关基因的启动子区域结合并激活其表达，从而增强抗病性。这些发现为提高水稻产量和抗病性提供了一种潜在的育种策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Science Advances 综合性期刊-综合性期刊

CiteScore

21.40

自引率

1.50%

发文量

1937

审稿时长

29 weeks

期刊介绍： Science Advances, an open-access journal by AAAS, publishes impactful research in diverse scientific areas. It aims for fair, fast, and expert peer review, providing freely accessible research to readers. Led by distinguished scientists, the journal supports AAAS's mission by extending Science magazine's capacity to identify and promote significant advances. Evolving digital publishing technologies play a crucial role in advancing AAAS's global mission for science communication and benefitting humankind.