Tree peony PsMYB44 negatively regulates petal blotch distribution by inhibiting dihydroflavonol-4-reductase gene expression.

ABSTRACT:

Background and aims

The tree peony (Paeonia suffruticosa Andr.) has been widely cultivated as a field plant, and petal blotch is one of its important traits, which not only promotes proliferation but also confers high ornamental value. However, the regulatory network controlling blotch formation remains elusive owing to the functional differences and limited conservation of transcriptional regulators in dicots.

Methods

We performed phylogenetic analysis to identify MYB44-like transcription factors in P. suffruticosa blotched cultivar 'High noon' petals. A candidate MYB44-like transcription factor, PsMYB44, was analysed via expression pattern analysis, subcellular localization, target gene identification, gene silencing in P. suffruticosa petals and heterologous overexpressio

SUBMITTER: Luan Y 

PROVIDER: S-EPMC9992934 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature