Overexpression of CpWRKY75 from Chimonanthus praecox Promotes Flowering Time in Transgenic Arabidopsis.

ABSTRACT: WRKY transcription factors play critical roles in the physiological processes of plants. Although the roles of WRKYs have been characterized in some model plants, their roles in woody plants, especially wintersweet (Chimonanthus praecox), are largely unclear. In this study, a wintersweet WRKY gene named CpWRKY75 belonging to group IIc was isolated and its characteristics were identified. CpWRKY75 is a nucleus-localized protein, and exhibited no transcriptional activation activity in yeast. CpWRKY75 was highly expressed in flowers at different bloom stages. Ectopic expression of CpWRKY75 significantly promoted the flowering time of transgenic Arabidopsis (Arabidopsis thaliana), as determined by the rosette leaf number and first flower open time. The expres

SUBMITTER: Huang R 

PROVIDER: S-EPMC8774968 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature