The NF-Y-PYR module integrates the abscisic acid signal pathway to regulate plant stress tolerance

文献类型： 外文期刊

第一作者： Yu, Tai-Fei

作者： Yu, Tai-Fei;Liu, Ying;Fu, Jin-Dong;Chen, Jun;Zheng, Lei;Lu, Zhi-Wei;Zhou, Yong-Bin;Chen, Ming;Xu, Zhao-Shi;Ma, You-Zhi;Ma, Jian;Fang, Zheng-Wu;Lu, Zhi-Wei

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关键词： CRISPR; Cas9; drought; interaction identification; NF-Y transcription factor; salt stress; signal transduction; transgenic soybeans

期刊名称：PLANT BIOTECHNOLOGY JOURNAL （ 影响因子：9.803； 五年影响因子：9.555 ）

ISSN： 1467-7644

年卷期： 2021 年 19 卷 12 期

页码：

收录情况： SCI

摘要： Drought and salt stresses impose major constraints on soybean production worldwide. However, improving agronomically valuable soybean traits under drought conditions can be challenging due to trait complexity and multiple factors that influence yield. Here, we identified a nuclear factor Y C subunit (NF-YC) family transcription factor member, GmNF-YC14, which formed a heterotrimer with GmNF-YA16 and GmNF-YB2 to activate the GmPYR1-mediated abscisic acid (ABA) signalling pathway to regulate stress tolerance in soybean. Notably, we found that CRISPR/Cas9-generated GmNF-YC14 knockout mutants were more sensitive to drought than wild-type soybean plants. Furthermore, field trials showed that overexpression of GmNF-YC14 or GmPYR1 could increase yield per plant, grain plumpness, and stem base circumference, thus indicating improved adaptation of soybean plants to drought conditions. Taken together, our findings expand the known functional scope of the NF-Y transcription factor functions and raise important questions about the integration of ABA signalling pathways in plants. Moreover, GmNF-YC14 and GmPYR1 have potential for application in the improvement of drought tolerance in soybean plants.

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