ANR — Brassica juncea

Summary

BJUB07G01970S, designated ANR (BjBAN), encodes an anthocyanidin reductase on chromosome B07 of Indian mustard (Brassica juncea). The product possesses oxidoreductase activity acting on CH-OH groups with NADP as acceptor, along with flavanone 4-reductase, dihydroflavanol 4-reductase, and racemase/epimerase activities, and belongs to the 3Beta_OHSteriod_DH/Estase and NAD(P)-binding domain families. The gene is associated with seed development, pigmentation, anthocyanin and flavonoid anabolism, phenylpropanoid anabolism, and negative regulation of flavonoid anabolism. It has been connected to seed color, seed size, and photosynthetic rate, as well as proanthocyanidin and condensed tannin biosynthesis. Studies of related genes in other species link the family to proanthocyanidin accumulation, anthocyanin accumulation, seed coat development, and anthocyanidin reduction.