Histone H3 lysine 27 trimethylation suppresses jasmonate biosynthesis and signaling to affect male fertility under high temperature in cotton
文献类型： 外文期刊
作者： Li, Yanlong 1 ; Chen, Miao 1 ; Khan, Aamir Hamid 1 ; Ma, Yizan 1 ; He, Xin 1 ; Yang, Jing 1 ; Zhang, Rui 1 ; Ma, Huanhuan 1 ; Zuo, Chunyang 1 ; Li, Yawei 1 ; Kong, Jie 3 ; Wang, Maojun 1 ; Zhu, Longfu 1 ; Zhang, Xianlong 1 ; Min, Ling 1 ;
作者机构： 1.Huazhong Agr Univ, Natl Key Lab Crop Genet Improvement, Wuhan 430070, Peoples R China
2.Huazhong Agr Univ, Hubei Hongshan Lab, Wuhan 430070, Hubei, Peoples R China
3.Xinjiang Acad Agr Sci, Inst Econ Crops, Urumqi 830091, Xinjiang, Peoples R China
关键词： high temperature; cotton anther; jasmonate
期刊名称：PLANT COMMUNICATIONS （ 影响因子：10.5； 五年影响因子：10.5 ）
ISSN： 2590-3462
年卷期： 2023 年 4 卷 6 期
页码：
收录情况： SCI
摘要： High-temperature (HT) stress causes male sterility in crops, thus decreasing yields. To explore the possible contribution of histone modifications to male fertility under HT conditions, we defined the histone methylation landscape for the marks histone H3 lysine 27 trimethylation (H3K27me3) and histone H3 lysine 4 tri-methylation (H3K4me3) by chromatin immunoprecipitation sequencing (ChIP-seq) in two differing upland cotton (Gossypium hirsutum) varieties. We observed a global disruption in H3K4me3 and H3K27me3 modifications, especially H3K27me3, in cotton anthers subjected to HT. HT affected the bivalent H3K4me3-H3K27me3 modification more than either monovalent modification. We determined that removal of H3K27me3 at the promoters of jasmonate-related genes increased their expression, maintaining male fertility under HT in the HT-tolerant variety at the anther dehiscence stage. Modulating jasmonate homeo-stasis or signaling resulted in an anther indehiscence phenotype under HT. Chemical suppression of H3K27me3 deposition increased jasmonic acid contents and maintained male fertility under HT. In summary, our study provides new insights into the regulation of male fertility by histone modifications under HT and suggests a potential strategy for improving cotton HT tolerance.
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