Gene Details:

  • Gene ID: PGSC0003DMG400003316
  • Gene Symbol: StMYB44-1
  • Gene Name:
  • Genome:
  • Species: Solanum tuberosum

Functional Descriptions:

  • StMYB44 negatively regulates anthocyanin biosynthesis at high temperatures in tuber flesh of potato.
  • StMYB44 represses anthocyanin accumulation in leaves of Nicotiana tabacum and N. benthamiana by directly suppressing the activity of the dihydroflavonol reductase (DFR) promoter.
  • StMYB44-1 showed stronger repressive capacity than StMYB44-2, with both predicted proteins containing the repression-associated EAR motif with some variation.
  • StMYB44-1 conferred repression without a requirement for a basic helix–loop–helix (bHLH) partner, suggesting a different repression mechanism from that of reported anthocyanin repressors.
  • We propose that temperature-induced reduction of anthocyanin accumulation in potato flesh is caused by down-regulation of the activating anthocyanin regulatory complex, by enhancing the expression of flesh-specific StMYB44 and alteration of phenylpropanoid flux.

Literature:

Gene Resources:

Orthologs:

Sequences:

  • CDS Sequence:
  • Protein Sequence: