The LUX-SWI3C module regulates photoperiod sensitivity in Arabidopsis thaliana

文献类型： 外文期刊

第一作者： Wang, Jianhao

作者： Wang, Jianhao;Liu, Huan;Li, Hong;Wang, Fan;Yue, Lin;Liu, Shuangrong;Liu, Baohui;Kong, Fanjiang;Sun, Zhihui;Wang, Jianhao;Yang, Songguang;Huang, Mingkun

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关键词： chromatin remodeling; circadian clock; evening complex; histone modification; photoperiod sensitivity

期刊名称：JOURNAL OF INTEGRATIVE PLANT BIOLOGY （ 影响因子：9.3； 五年影响因子：10.8 ）

ISSN： 1672-9072

年卷期： 2025 年 67 卷 6 期

页码：

收录情况： SCI

摘要： In plants, the photoperiod sensitivity directly influences flowering time, which in turn affects latitudinal adaptation and yield. However, research into the mechanisms underlying photoperiod sensitivity, particularly those mediated by epigenetic regulation, is still in its nascent stages. In this study, we analyzed the regulation of photoperiod sensitivity in Arabidopsis thaliana. We demonstrate that the evening complex LUX ARRYTHMO (LUX) and the chromatin remodeling factor SWITCH/SUCROSE NONFERMENTING 3C (SWI3C) regulate GI locus chromatin compaction and H3K4me3 modification levels at the GIGANTEA locus under different photoperiod conditions. This mechanism is one of the key factors that allow plants to distinguish between long-day and short-day photoperiods. Our study provides insight into how the LUX-SWI3C module regulates photoperiod sensitivity at the epigenetic level.

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