ATM4 — Daucus carota subsp. sativus

Summary

DCAR_008083 (DcATM4) on carrot chromosome 2 encodes a MYB-family transcription factor with DNA-binding, transcription factor activity, and protein dimerization activity, and is associated with bHLH transcription factor binding, kinase binding, and calcium ion binding. The gene is linked to regulation of flavonoid and proanthocyanidin biosynthesis, glucosinolate biosynthetic process, raffinose metabolic process, cellular detoxification of cadmium ion, and response to sulfur starvation. It is associated with drought recovery, defense response to insects, trichome morphogenesis and spacing, and plant epidermal cell fate specification. Associations with root color, root epidermal cell length, leaf trichome density, seed protein content, adventitious root number, phosphorus response, iron concentration, and photoperiod-sensitive flowering time have been noted. Studies of related genes in other species link the family to cuticle deposition, suberin biosynthesis, and drought response.