FvMYB79 Positively Regulates Strawberry Fruit Softening via Transcriptional Activation of FvPME38.

ABSTRACT: Strawberry is a soft fruit with short postharvest life, due to a rapid loss of firmness. Pectin methylesterase (PME)-mediated cell wall remodeling is important to determine fruit firmness and softening. Previously, we have verified the essential role of FvPME38 in regulation of PME-mediated strawberry fruit softening. However, the regulatory network involved in PME-mediated fruit softening is still largely unknown. Here, we identified an R2R3-type MYB transcription factor FvMYB79, which activates the expression level of FvPME38, thereby accelerating fruit softening. During fruit development, FvMYB79 co-expressed with FvPME38, and this co-expression pattern was opposite to the change of fruit firmness in the fruit of 'Ruegen' which significantly decreased during

SUBMITTER: Cai J 

PROVIDER: S-EPMC8744888 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature