HCT — Solanum tuberosum

Summary

PGSC0003DMG400014152 (StHCT, HCT) on potato chromosome 3 encodes a hydroxycinnamoyltransferase with quinate O-hydroxycinnamoyltransferase, shikimate O-hydroxycinnamoyltransferase, anthranilate N-benzoyltransferase, and rosmarinate synthase activities, belonging to the CAT-like domain superfamily. This gene is associated with phenylpropanoid, lignin, flavonoid, anthocyanin, carotenoid, and alkaloid anabolism, as well as wound healing, response to wounding, sucrose and galactose metabolism, and NO storage. It localizes to the membrane and cytoplasm and catalyzes key reactions in phenylpropanoid biosynthesis, including conversion of caffeoylshikimate and caffeoylquinate to caffeoyl-CoA. Associations with shoot fresh weight, flavonoid, anthocyanin, and chlorophyll content, and suberin biosynthesis have been noted. Studies of related genes in other species link the family to lignin biosynthesis, drought tolerance, powdery mildew resistance, and fruit color and shape.