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Yeast One-Hybrid Screening to Identify Transcription Factors for IbMYB1-4 in the Purple-Fleshed Sweet Potato (Ipomoea batatas [L.] Lam.).

ABSTRACT: IbMYB1 is a transcription factor involved in the biosynthesis of anthocyanin in the purple-fleshed sweet potato. So far, few studies have investigated transcription factors that are upstream of the promoter IbMYB1-4. In this study, a yeast one-hybrid screening aimed at identifying transcription factors upstream of the promoter IbMYB1-4 was performed in the storage roots of the purple-fleshed sweet potato, and IbPDC, IbERF1, and IbPGP19 were identified as upstream binding proteins for the promoter IbMYB1-4. A dual luciferase reporter assay, and yeast one-hybrid assays, were employed to confirm the interaction of these binding proteins with promoters. IbERF1 was found to be an upstream transcription factor for the promoter IbMYB1, and is implicated in the biosynthesis of anthocyanin in the purple-fleshed sweet potato. IbERF1 plays a major role in the biosynthesis of anthocyanin in the purple-fleshed sweet potato.

SUBMITTER: Fu D 

PROVIDER: S-EPMC10378178 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature

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Yeast One-Hybrid Screening to Identify Transcription Factors for <i>IbMYB1-4</i> in the Purple-Fleshed Sweet Potato (<i>Ipomoea batatas</i> [L.] Lam.).

Fu Danwen D   Yang Shaohua S   Liu Rui R   Gao Feng F  

Current issues in molecular biology 20230712 7

IbMYB1 is a transcription factor involved in the biosynthesis of anthocyanin in the purple-fleshed sweet potato. So far, few studies have investigated transcription factors that are upstream of the promoter <i>IbMYB1-4</i>. In this study, a yeast one-hybrid screening aimed at identifying transcription factors upstream of the promoter <i>IbMYB1-4</i> was performed in the storage roots of the purple-fleshed sweet potato, and IbPDC, IbERF1, and IbPGP19 were identified as upstream binding proteins f  ...[more]

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