CHS — Oryza sativa Japonica

Summary

OsCHS (OS07G0526400) on rice chromosome 7 encodes a type III polyketide synthase with chalcone/stilbene synthase domains, exhibiting naringenin-chalcone synthase and bisdemethoxycurcumin synthase activities. The gene is associated with anthocyanin, chalcone, serotonin, polyketide, and cannabinoid anabolism, as well as sporopollenin biosynthesis, pollen wall assembly, anther development, and pigmentation. It is linked to flavonoid, anthocyanin, lignin, starch, and chlorophyll content, along with grain weight, germination rate, heat tolerance, root length, leaf color, and monosaccharide content. Localization evidence connects the product to the endoplasmic reticulum and polyketide synthase complex. Studies of related genes in other species further associate this family with flavonoid biosynthesis.