CHS — Oryza sativa Indica Group

Summary

BGIOSGA032589 (symbol CHS, preferred name OiCHS) on chromosome 10 of Indica rice encodes a chalcone synthase, a type III polyketide synthase with chalcone/stilbene synthase and thiolase-like domains. The enzyme exhibits naringenin-chalcone synthase and bisdemethoxycurcumin synthase activities, along with acyltransferase and protein homodimerization activities. This gene is associated with the regulation of flavonoid and polyketide biosynthesis, pigmentation, pollen wall assembly, leaf senescence, and developmental processes. It has also been linked to hull color and oxidative stress response. Studies of related genes in other species connect the family to flavonoid metabolism, though these associations are not yet established for this specific gene.