CHS — Oryza sativa Japonica

Summary

OS04G0103900 (CHS) in rice encodes a type III polyketide synthase with chalcone/stilbene synthase domains, exhibiting naringenin-chalcone synthase, chalcone isomerase, flavonol synthase, and dihydroflavanol 4-reductase activities. This gene is associated with chalcone, polyketide, flavonol, and anthocyanin biosynthesis, as well as serotonin anabolism, triterpenoid metabolism, pigmentation, and responses to UV light and gravity. It localizes to the cytosol, nucleus, endoplasmic reticulum, and tonoplast. CHS is linked to grain weight, seed coat color, leaf color, chlorophyll content, starch content, root length, drought tolerance, heat tolerance, salt tolerance, germination rate, flowering time, and lignin content. Related genes in other species are linked to flavonoid biosynthesis, seed coat pigmentation, UV-B sensitivity, and pollen exine development.