CHS — Oryza sativa Indica Group

Summary

BGIOSGA007285 (CHS, OiCHS) on chromosome 2 of Indica rice encodes a protein with chalcone/stilbene synthase and type III polyketide synthase domains, annotated with naringenin-chalcone synthase, chalcone isomerase, flavonol synthase, and tetraketide alpha-pyrone synthase activities. The gene is associated with regulation of flavonoid, anthocyanin, and phenylpropanoid biosynthesis, as well as pollen wall assembly, pigmentation, response to UV light, auxin polar transport, and leaf senescence. It has been linked to traits including hull and seed coat color, anthocyanin content, drought tolerance, salt stress tolerance, flowering time, root morphology, and stamen morphology. 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 and male fertility.