High-resolution temporal transcriptome sequencing unravels ERF and WRKY as the master players in the regulatory networks underlying sesame responses to waterlogging and recovery

文献类型： 外文期刊

第一作者： Wang, Linhai

作者： Wang, Linhai;Dossa, Komivi;You, Jun;Zhang, Yanxin;Li, Donghua;Zhou, Rong;Yu, Jingyin;Wei, Xin;Zhu, Xiaodong;Jiang, Shiyang;Gao, Yuan;Mmadi, Marie Ali;Zhang, Xiurong;Dossa, Komivi;Wei, Xin

作者机构：

关键词： Waterlogging; Gene regulatory network; Transcription factors; Sesame

期刊名称：GENOMICS （ 影响因子：5.736； 五年影响因子：4.939 ）

ISSN： 0888-7543

年卷期： 2021 年 113 卷 1 期

页码：

收录情况： SCI

摘要： Major crops are generally sensitive to waterlogging, but our limited understanding of the waterlogging gene regulatory network hinders the efforts to develop waterlogging-tolerant cultivars. We generated high-resolution temporal transcriptome data from root of two contrasting sesame genotypes over a 48 h period waterlogging and drainage treatments. Three distinct chronological transcriptional phases were identified, including the earlywaterlogging, late-waterlogging and drainage responses. We identified 47 genes representing the core waterlogging-responsive genes. Waterlogging/drainage-induced transcriptional changes were mainly driven by ERF and WRKY transcription factors (TF). The major difference between the two genotypes resides in the early transcriptional phase. A chronological transcriptional network model predicting putative causal regulations between TFs and downstream waterlogging-responsive genes was constructed and some interactions were validated through yeast one-hybrid assay. Overall, this study unveils the architecture and dynamic regulation of the waterlogging/drainage response in a non-model crop and helps formulate new hypotheses on stress sensing, signaling and sophisticated adaptive responses.

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