MYB1 — Daucus carota subsp. sativus

Summary

DCAR_028587 (DcMYB1) on carrot chromosome 8 encodes a MYB transcription factor with RNA polymerase II-specific DNA-binding and chromatin-binding activities. In carrot, DcMYB1 is associated with stress responses, regulation of phenylpropanoid and lignin metabolism, anthocyanin biosynthesis, green leaf volatile production, anther wall tapetum development, stomatal movement, circadian rhythm, and responses to abscisic acid, auxin, cold, and salinity. It localizes to the nucleus, nuclear speck, and cytosol. The gene is linked to anthocyanin content, salt tolerance, and drought tolerance. Studies of related genes in other species associate the family with osmotic and salt stress tolerance, abscisic acid response, leaf and tapetum development, and seed germination under salt stress, while sequence similarity links extend to root shape, grain size, fruit shape, and sugar content in other species.