MYB3 — Daucus carota subsp. sativus

Summary

DCAR_001079 (DcMYB3) on carrot chromosome 1 encodes a Myb-domain transcription factor with sequence-specific DNA-binding, protein-dimerization, small GTPase-binding and phosphatase activities. The gene is associated with regulation of anthocyanin, flavonol, proanthocyanidin, lignin and phenylpropanoid metabolism, as well as pigmentation, trichome differentiation and spacing, and responses to iron starvation. Associations with root colour, anthocyanin content, flowering time, seed and embryo development, root morphology, leaf trichome density, brassinosteroid and jasmonic acid content, and disease tolerance have also been noted. Studies of related genes in other species link the family to sinapate ester production, UV-B tolerance, lignin content, pollen development and ABA response.