MYB1 — Daucus carota subsp. sativus

Summary

DCAR_010745 (DcMYB90, also known as MYB1 or MYB113 on carrot chromosome 3) encodes a transcription factor with a Myb DNA-binding domain, localised to the nucleus and associated with sequence-specific DNA binding and transcription cis-regulatory region binding. In carrot, this gene is directly associated with root-specific anthocyanin pigmentation and anthocyanin biosynthesis. It is linked to the positive regulation of anthocyanin and flavonoid anabolism, regulation of lignin anabolism, green leaf volatile biosynthesis, pigmentation, and cell differentiation, as well as both upregulation and downregulation of transcription. Associations also include anthocyanin content, photosynthetic rate, sesquiterpene accumulation, trichome formation, fruit storage life, resistance to Botrytis cinerea, disease resistance, antioxidant capacity, and sugar and citric acid content. Studies of related genes in other species link the family to anthocyanin accumulation, petal and fruit colour, drought tolerance, and shelf life.