DEP1 — Oryza sativa Japonica

Summary

OsDEP1 (OS11G0484000) on rice chromosome 11 encodes a protein with methylthioribulose 1-phosphate dehydratase (EC 4.2.1.109) and acireductone synthase (EC 3.1.3.77) activities, and belongs to the aldolase II/adducin N and HAD-superfamily hydrolase families. The gene is associated with integument development, double fertilization, syngamy, demethylation, detoxification, signal transduction, and sucrose and starch metabolism. It is linked to grain yield, grain weight, grain size, grain length, grain shape, grain number, grain appearance, panicle number, panicle length, tiller number, culm strength, harvest index, seed size, seed development, flower development, and tolerance to salinity and cold. The protein localizes to the chloroplast stroma, plastid, mitochondria, and cytosol. Studies of related genes in other species link the family to plant height, spike length, and heterosis.