MYB1 — Brassica juncea

Summary

BJUA03G21390S (MYB1, BjPAP1) on chromosome A03 of Indian mustard encodes a plant MYB transcription factor with a Myb DNA-binding domain and SANT/Myb domain. It exhibits DNA-binding transcription factor activity, protein dimerization activity, and is associated with ubiquitin ligase activity and protein kinase activity. This gene is linked to the regulation of flavonoid, proanthocyanidin, and anthocyanin biosynthesis, as well as pigmentation, seed growth, mucilage production, trichome spacing, and epidermal cell fate specification. It localizes to the nucleus, nuclear bodies, and ubiquitin ligase complexes. Associations include flower and petal color, seed coat color and morphology, leaf color and trichome density, root epidermal cell length, light sensitivity responses, cadmium and iron concentration, seed longevity, lignin biosynthesis, and viral disease response. Studies of related genes in other species link the family to anthocyanin pigmentation, trichome and root hair differentiation, and stress tolerance.