MADS-domain transcription factor AGAMOUS LIKE-9 participates in the gibberellin pathway to promote bud dormancy release of tree peony.

ABSTRACT: Bud dormancy, which serves as a survival mechanism during winter, is crucial for determining the timing and quality of flowering in many perennial woody plants, including tree peony. The gibberellin (GA) signaling pathway participates in breaking bud dormancy in tree peony. Specifically, PsRGL1, a key DELLA protein, is a negative regulator in this process. MADS-box family members participate in plant growth and development regulation. In this study, a MADS-domain transcription factor, AGAMOUS-LIKE 9 (PsAGL9), was identified as a candidate interaction protein of PsRGL1 using a pull-down assay coupled with liquid chromatography-tandem mass spectrometry. PsAGL9 expression was induced by chilling and exogenous GA₃. Yeast two-hybrid (Y2H), pull-down, and luciferase complementa

SUBMITTER: Demei N 

PROVIDER: S-EPMC11997425 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature