Epigenetic silencing of callose synthase by VIL1 promotes bud-growth transition in lily bulbs

文献类型： 外文期刊

第一作者： Pan, Wenqiang

作者： Pan, Wenqiang;Li, Jingru;Zhao, Yajie;Xin, Yin;Wang, Shaokun;Liu, Chang;Yi, Mingfang;Wu, Jian;Du, Yunpeng;Zhang, Xiuhai;Lin, Zhimin;Fang, Shaozhong;Yang, Yingdong;Zaccai, Michele;Gazzarrini, Sonia;Gazzarrini, Sonia

作者机构：

期刊名称：NATURE PLANTS （ 影响因子：18.0； 五年影响因子：18.6 ）

ISSN： 2055-026X

年卷期： 2023 年

页码：

收录情况： SCI

摘要： In plants, restoring intercellular communication is required for cell activity in buds during the growth transition from slow to fast growth after dormancy release. However, the epigenetic regulation of this phenomenon is far from understood. Here we demonstrate that lily VERNALIZATION INSENSITIVE 3-LIKE 1 (LoVIL1) confers growth transition by mediating plasmodesmata opening via epigenetic repression of CALLOSE SYNTHASE 3 (LoCALS3). Moreover, we found that a novel transcription factor, NUCLEAR FACTOR Y, SUBUNIT A7 (LoNFYA7), is capable of recruiting the LoVIL1-Polycomb Repressive Complex 2 (PRC2) and enhancing H3K27me3 at the LoCALS3 locus by recognizing the CCAAT cis-element (Cce) of its promoter. The LoNFYA7-LoVIL1 module serves as a key player in orchestrating the phase transition from slow to fast growth in lily bulbs. These studies also indicate that LoVIL1 is a suitable marker for the bud-growth-transition trait following dormancy release in lily cultivars.

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