TT2 — Brassica napus

Summary

BnTT2 (TT2, MYB123) on chromosome A08 of oilseed rape (Brassica napus) encodes a Myb-domain transcription factor with DNA-binding and protein-dimerization activity. The gene is associated with the regulation of flavonoid, proanthocyanidin, anthocyanin, and lignin anabolism, as well as trichome spacing, differentiation, and branching, epidermal cell fate specification, integument development, mucilage anabolism, pigmentation, and embryogenesis. It is linked to seed coat color and morphology, seed weight, flavonoid and anthocyanin content, root hair density and length, leaf trichome density, stem dry weight, brassinosteroid and jasmonic acid content, iron concentration, phototropism, and responses to biotic, abiotic, high-temperature, and oxidative stress. The protein localizes to the nucleus, cytoplasm, and root hair. Related genes in other species are linked to proanthocyanidin accumulation, seed coat pigmentation, trichome formation, and root hair development.