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Comparative Transcriptome Analysis Reveals Hormone Signal Transduction and Sucrose Metabolism Related Genes Involved in the Regulation of Anther Dehiscence in Photo-Thermo-Sensitive Genic Male Sterile Wheat

文献类型： 外文期刊

作者： Zhang, Tianbao 1 ; Yuan, Shaohua 1 ; Liu, Zihan 1 ; Luo, Liqing 1 ; Guo, Haoyu 1 ; Li, Yanmei 1 ; Bai, Jianfang 1 ; Zhao, Changping 1 ; Zhang, Liping 1 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Beijing Key Lab Mol Genet Hybrid Wheat, Inst Hybrid Wheat, Beijing 100097, Peoples R China

关键词： anther dehiscence; hormone; sucrose; male sterility; wheat

期刊名称：BIOMOLECULES （ 影响因子：6.064； 五年影响因子：6.191 ）

ISSN：

年卷期： 2022 年 12 卷 8 期

页码：

收录情况： SCI

摘要： Anther dehiscence is an important process to release pollen and then is a critical event in pollination. In the wheat photo-thermo-sensitive genic male sterility (PTGMS) line, pollen cannot release from anther since the anther cannot dehisce during anther dehiscence stage in a sterile condition. In this study, we carried out RNA-sequencing to analyze the transcriptome of one wheat PTGMS line BS366 during anther dehiscence under fertile and sterile conditions to explore the mechanism. We identified 6306 differentially expressed genes (DEGs). Weighted gene co-expression network analysis (WGCNA) and KEGG analysis showed that DEGs were mainly related to "hormone signal transduction pathway" and "starch and sucrose metabolism". We identified 35 and 23 DEGs related hormone signal transduction and sucrose metabolism, respectively. Compared with conventional wheat Jing411, there were some changes in the contents of hormones, including JA, IAA, BR, ABA and GA3, and sucrose, during three anther dehiscence stages in the sterile condition in BS366. We performed qRT-PCR to verify the expression levels of some critical DEGs of the hormone signaling pathway and the starch and sucrose metabolism pathway. The results showed disparate expression patterns of the critical DEGs of the hormone signaling pathway and the starch and sucrose metabolism pathway in different conditions, suggesting these genes may be involved in the regulation of the anther dehiscence in BS366. Finally, we conducted a hypothesis model to reveal the regulation pathway of hormones and sucrose on anther dehiscence. The information provided new clues to the molecular mechanisms of anther dehiscence in wheat and improved wheat hybrid breeding.

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