CHS — Oryza sativa Japonica

Summary

OsCHS (OS07G0411300) on rice chromosome 7 encodes a type III polyketide synthase with chalcone/stilbene synthase domains, annotated with naringenin-chalcone synthase, chalcone isomerase, flavonol synthase, and biphenyl synthase activities. The gene is associated with chalcone, polyketide, flavonol, and anthocyanin biosynthesis, as well as serotonin anabolism, triterpenoid metabolism, pollen wall assembly, pigmentation, and responses to UV light and gravity. It has been linked to grain weight, starch and monosaccharide content, chlorophyll content, root length, leaf color, seed coat color, pollen fertility, and tolerances to drought, salt, heat, and oxidative stress. Related genes in other species are associated with flavonoid production, UV-B tolerance, seed coat pigmentation, and phenylpropanoid pathway activity.