MYB4 — Brassica juncea

Summary

BJUA06G00230S (BjMYB4) on chromosome A06 of Indian mustard encodes a Myb-family transcription factor with sequence-specific DNA binding and protein dimerization activity. The gene is associated with the regulation of phenylpropanoid, flavonoid, proanthocyanidin, anthocyanin and lignin metabolism, as well as the downregulation of sinapate ester anabolism. It has been linked to trichome spacing and differentiation, seed coat development, response to UV-B and wounding, jasmonic acid signaling, circadian rhythm, and green leaf volatile biosynthesis. Associations with agronomic traits include flavonoid and anthocyanin content, leaf trichome density, brassinosteroid and jasmonic acid content, iron concentration, nitrate uptake, UV-B light sensitivity, disease tolerance, abiotic stress response, flowering time, and seed growth and development. The protein localizes to the nucleus, cytoplasm and root hair.