D10 — Oryza sativa Japonica

Summary

OS01G0746400 (D10, also known as OsMAX4, OsCCD8, CCD8) on rice chromosome 1 encodes a carotenoid cleavage dioxygenase with 9-cis-10'-apo-beta-carotenal cleavage oxygenase activity, classified under EC 1.13.11.69 and 1.13.11.70. The gene is associated with strigolactone anabolism, carotene and xanthophyll breakdown, and abscisic acid anabolism. D10 has been connected to meristem development, leaf angle, tiller bud dormancy, shoot branching, and tiller number. It is linked to grain yield, grain weight, plant height, chlorophyll content, nitrogen content, and spikelet sterility. The gene is associated with auxin transport, cytokinin anabolism, response to nutrient and herbicide, anther development, and fruit ripening. The protein localizes to the chloroplast stroma. Related genes in other species are linked to strigolactone biosynthesis, lateral branching, and cell death.