MYC3 — Daucus carota subsp. sativus

Summary

DCAR_006987, designated DcMYC3 (also known as DcBHLH14), encodes a protein of the AIB/MYC-like family on carrot chromosome 2. The product possesses DNA-binding, protein dimerization, kinase-binding, SUMO transferase and SUMO-binding activities, and localizes to both nucleus and cytosol. DcMYC3 is associated with jasmonic acid signaling and response, positive regulation of anthocyanin anabolism, flavonoid anabolism, sumoylation, and regulation of defense response including systemic acquired resistance and response to wounding. It has been linked to anther dehiscence, pollen and flower development, trichome morphogenesis, and regulation of primary metabolic process. Trait associations include insect damage response, jasmonic acid content, flowering time, vegetative growth time, root thickness and morphology, stomatal opening and closure, low-temperature and arsenic stress responses, abscisic acid sensitivity, and disease tolerance. Studies of related genes in other species connect the family to stomatal closure, pathogen resistance, freezing tolerance, and alkaline stress tolerance.