Q negatively regulates wheat salt tolerance through directly repressing the expression of TaSOS1 and reactive oxygen species scavenging genes

文献类型： 外文期刊

第一作者： Yang, Ziyi

作者： Yang, Ziyi;Yang, Ruizhen;Bai, Wanqing;Chen, Wenxi;Kong, Xiuying;Qiao, Weihua;Zhang, Yunwei;Sun, Jiaqiang;Zhou, Yun

作者机构：

关键词： wheat; salt tolerance; reactive oxygen species; Q; TaWD40

期刊名称：PLANT JOURNAL （ 影响因子：7.2； 五年影响因子：7.9 ）

ISSN： 0960-7412

年卷期： 2024 年

页码：

收录情况： SCI

摘要： The Q transcription factor plays important roles in improving multiple wheat domestication traits such as spike architecture, threshability and rachis fragility. However, whether and how it regulates abiotic stress adaptation remain unclear. We found that the transcriptional expression of Q can be induced by NaCl and abscisic acid treatments. Using the q mutants generated by CRISPR/Cas9 and Q overexpression transgenic lines, we showed that the domesticated Q gene causes a penalty in wheat salt tolerance. Then, we demonstrated that Q directly represses the transcription of TaSOS1-3B and reactive oxygen species (ROS) scavenging genes to regulate Na+ and ROS homeostasis in wheat. Furthermore, we showed that wheat salt tolerance protein TaWD40 interacts with Q to competitively interfere with the interaction between Q and the transcriptional co-repressor TaTPL. Taken together, our findings reveal that Q directly represses the expression of TaSOS1 and some ROS scavenging genes, thus causing a harmful effect on wheat salt tolerance.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序