CHS — Oryza sativa Indica Group

Summary

BGIOSGA014950 (OiCHS, CHS) on chromosome 4 of Indica rice encodes a type III polyketide synthase with chalcone/stilbene synthase domains, annotated with naringenin-chalcone synthase, flavonol synthase, and trihydroxystilbene synthase activities. This gene is associated with the 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. The gene is also connected to pollen exine development and male sterility. Studies of related genes in other species link the family to flavonoid production, UV-B tolerance, seed coat pigmentation, and pollen wall formation.