TT8 — Brassica juncea

Summary

BjTT8 (BJUA09G45700S) encodes a protein with a bHLH domain and MYC/MYB_N domain on chromosome A09 of Indian mustard. The product possesses DNA-binding, transcription cis-regulatory region binding, protein-dimerization, and protein-binding activities and localises to both the nucleus and cytoplasm. BjTT8 is associated with regulation of flavonoid, proanthocyanidin and anthocyanin anabolism, as well as phenylpropanoid metabolism and downregulation of sinapate ester anabolism. It is linked to seed coat colour and proportion, seed weight and size, anthocyanin and flavonoid content, leaf colour, plant height, stem dry weight, root hair density and length, trichome differentiation, germination rate, and responses to UV light, high and low temperature stress, cadmium, and biotic stress. Studies of related genes in other species connect the family to proanthocyanidin accumulation, seed coat pigmentation, trichome formation and root hair development.