The Mechanism of TT2-Type <i>MYB</i> Transcription Factor <i>JrMYB1L</i> in Anthocyanin Biosynthesis in 'Jinghong 1' Walnuts.

ABSTRACT: Red walnuts have been widely studied because of their strong antioxidant activity and ornamental value. However, research on the mechanism of anthocyanin biosynthesis in walnuts remains in the initial stage. The regulatory mechanism of TT2-type R2R3-MYB transcription factors in anthocyanin biosynthesis in walnuts is also unclear. Therefore, this study used 'D2-1' and 'Jinghong 1' walnuts as plant materials. The testa of 'Jinghong 1' was red, and its anthocyanin content was significantly higher than that of 'D2-1', mainly composed of cyanidin-3-O-arabinoside, cyanidin-3-O-galactoside, and cyanidin-3-O-glucoside. Differentially expressed genes between 'D2-1' and 'Jinghong 1' testa were enriched in phenylpropanoid biosynthesis and flavonoid biosynthesis. Next, this study identified a T

SUBMITTER: Zhang S 

PROVIDER: S-EPMC12737103 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature