CHS — Oryza sativa Japonica

Summary

OsCHS (OS05G0213100) on rice chromosome 5 encodes a protein with chalcone/stilbene synthase and type III polyketide synthase domains, and is annotated with naringenin-chalcone synthase, trihydroxystilbene synthase, and flavonol synthase activities. The gene is associated with chalcone and polyketide anabolism, flavonol biosynthetic process, pigmentation, pollen wall assembly, and response to UV and gravity. It has been linked to traits including seed coat color, anthocyanin content, grain weight, root length, chlorophyll content, starch content, lignin content, drought tolerance, heat tolerance, salt stress tolerance, germination rate, flowering time, and stomatal opening. Localization evidence connects the product to the cytosol, nucleus, endoplasmic reticulum, and tonoplast. Studies of related genes in other species link the family to pollen exine development, male fertility, sporopollenin biosynthesis, and seed coat pigmentation.