CPS — Oryza sativa Japonica

Summary

OsCPS (OS09G0319800) on rice chromosome 9 encodes a terpene synthase-like protein with kolavenyl diphosphate synthase, syn-copalyl diphosphate synthase, and ent-copalyl diphosphate synthase activities, along with isomerase and terpene synthase functions. The gene is associated with gibberellin biosynthesis and deficiency, leading to dwarfism, as well as domestication traits. It has been linked to diterpenoid and isoprenoid metabolism, phytoalexin biosynthesis, hormone metabolism, pre-harvest sprouting, stomatal closure, anther development, and responses to UV. Associations with agronomic traits include plant height, grain number, grain weight, grain yield, seed dormancy, germination rate, spikelet fertility, pollen fertility, stem elongation, culm diameter, and drought tolerance. Studies of related genes in other species link the family to seed germination, male fertility, and GA-responsive dwarfism.