ATM4 — Beta vulgaris subsp. vulgaris

Summary

BvATM4 (BVRB_4G071040) on sugar beet chromosome 4 encodes a MYB transcription factor with DNA-binding and transcription factor activity, protein dimerization activity, and calcium ion binding. It is associated with the regulation of raffinose metabolism, glucosinolate biosynthesis, proanthocyanidin and flavonoid anabolism, anthocyanin production, cutin biosynthesis, trichome morphogenesis and spacing, epidermal cell fate specification, defense responses to insects, drought recovery, and cellular detoxification of cadmium ions. The gene is linked to numerous traits including shoot elongation under submergence, root epidermal cell length, leaf trichome density, seed protein content, phosphorus response, iron concentration, lignin biosynthesis, photoperiod-sensitive flowering time, aphid response, UV-B light sensitivity, and brassinosteroid content. Studies of related genes in other species connect the family to suberin and cuticle deposition, glucosinolate accumulation, drought response, and trichome differentiation.