DhMYB22 and DhMYB60 regulate pigment intensity and floral organ shape in Dendrobium hybrid.

ABSTRACT:

Background

Flower pigment and shape are determined by the coordinated expression of a set of structural genes during flower development. R2R3-MYB transcription factors are known regulators of structural gene expression. The current study focused on two members of this large family of transcription factors that were predicted to have roles in pigment biosynthesis and organ shape development in orchids.

Methods

Phylogenetic analysis was used to identify candidate Dendrobium catenatum R2R3-MYB (DcaMYB) sequences associated with pigment and cell shape development. Gene silencing of candidate DhMYBs in Dendrobium hybrid by direct application of dsRNA to developing flowers was followed by observation of gene expression level and flower phenotypes. Silencing of the structural gene

SUBMITTER: Khairul-Anuar MA 

PROVIDER: S-EPMC9510950 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature