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

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

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)1451-1467
Number of pages17
JournalNature Plants
Volume9
Issue number9
DOIs
StatePublished - 1 Sep 2023

ASJC Scopus subject areas

  • Plant Science

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