Comparative transcriptome analysis of purple-fleshed sweet potato and its yellow-fleshed mutant provides insight into the transcription factors involved in anthocyanin biosynthesis in tuberous root.

ABSTRACT: In various plant species, many transcription factors (TFs), such as MYB, bHLH, and WD40, have been identified as regulators of anthocyanin biosynthesis in underground organs. However, the regulatory elements of anthocyanin biosynthesis in the tuberous roots of sweet potato have not been elucidated yet. Here, we selected the purple-fleshed sweet potato cultivar "Zhezi1" (ZZ ^P ) and its spontaneous yellow-fleshed mutant "Xinli" (XL ^Y ) to investigate the regulatory mechanism of the anthocyanin biosynthesis in the tuberous roots of sweet potato. By analyzing the IbMYB1 genotype in ZZ ^P and XL ^Y , we found that the IbMYB1-2, a MYB TF involved in anthocyanin biosynthesis, was missing in the XL ^Y<

SUBMITTER: Dong W 

PROVIDER: S-EPMC9393619 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature