Endodormancy Release Can Be Modulated by the GA₄-GID1c-DELLA2 Module in Peach Leaf Buds.

ABSTRACT: Gibberellin (GA) plays a key role in the release of bud dormancy and the GA receptor GID1 (GIBBERELLIN INSENSITIVE DWARF1) and DELLA protein are the GA signaling parts, but the molecular mechanism of GA-GID1-DELLA module regulating leaf bud dormancy in peach (Prunus persica) is still not very clear. In this study, we isolated and characterized the GID1 gene PpGID1c from the peach cultivar "Zhong you No.4." Overexpressing PpGID1c in Arabidopsis promoted seed germination, which indicated that PpGID1c has an important function in dormancy. The expression level of PpGID1c in peach leaf buds during endodormancy release was higher than that during ecodormancy and was positively correlated with GA₄ levels. Our study also found that GA₄ had

SUBMITTER: Li S 

PROVIDER: S-EPMC8504481 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature