PbMYB5 transcription factor plays a role in regulating anthocyanin biosynthesis in pear (Pyrus bretschneideri Rehd) skin.

ABSTRACT: The phenylacetone pathway, which encompasses flavonoids, lignin, and other compounds, is of paramount importance in determining the quality of pear fruit. Nevertheless, the precise regulatory functions of R2R3-MYB transcription factors in the metabolic pathways that regulate pear color changes remain unclear. In this study, we isolated an R2R3-PbMYB5(PbMYB5) transcription factor from 'Red Zaosu' pears and demonstrated that it influenced the expression of several genes, including PbCAD1, PbF5H, PbLAR, PbANR, and PbUFGT. The overexpression of PbMYB5 resulted in a notable elevation in anthocyanin concentration within the pear epidermis. Further research has shown that PbMYB5 is able to bind to PbANS and also has interactions with PbbHLH3 and

SUBMITTER: Li S 

PROVIDER: S-EPMC11772430 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature