Gene Details:

  • Gene ID: Capana01g000256
  • Gene Symbol: CabHLH1
  • Gene Name:
  • Genome:
  • Species: Capsicum annuum

Functional Descriptions:

  • The CabHLH1-DTX35/DFR module regulates pollen fertility by promoting flavonoid biosynthesis in Capsicum annuum L.
  • Identified CabHLH1 as a candidate gene for control of this trait. A G → A mutation at a splice acceptor site in CabHLH1 causes a frameshift mutation in the mutant, and the translated protein is terminated prematurely.
  • CabHLH1 also has an important effect on pollen fertility. Pollen vigor, anther flavonoid content, and seed number were lower in CabHLH1-silenced pepper plants, whereas anther H2O2 and MDA (malondialdehyde) contents were higher.
  • CabHLH1 can directly bind to the promoters of DTX35 and DFR and activate their expression. These results indicate that CabHLH1 regulates reactive oxygen species homeostasis by promoting the synthesis of anther flavonoids and acts as a positive regulator of pepper pollen fertility.

Literature:

Gene Resources:

  • NCBI ID:
  • UniProt accessions:

Orthologs:

Sequences:

  • CDS Sequence:
  • Protein Sequence: