TT12 — Brassica napus

Summary

BnTT12 (TT12) on chromosome C06 of oilseed rape encodes a MATE family polyspecific organic cation:proton antiporter with transmembrane transporter activity. The protein localises to the tonoplast and is associated with flavonoid transport from the endoplasmic reticulum to the vacuole, proanthocyanidin and pigment accumulation, seed development, maintenance of seed dormancy, embryogenesis, cell differentiation, and lignin, phenylpropanoid, and fatty acid anabolism. It has been connected to seed coat colour and pigmentation, proanthocyanidin deposition and transport, and flavonoid accumulation. Studies of related genes in other species link the family to proanthocyanidin accumulation, anthocyanin transport, UV-B tolerance, and pale brown seeds with reduced dormancy.