BG1 — Oryza sativa Japonica

Summary

OsBG1 (OS01G0946500) on rice chromosome 1 encodes a glycoside hydrolase family 17 protein with lichenase and glucan endo-1,3-beta-D-glucosidase activity. The gene is associated with downregulation of photosynthesis, regulation of photosynthesis, chlorophyll fluorescence, cytokinin transport, MAPK cascade, stomatal movement, lateral root development, and 1,3-beta-glucan breakdown. It localizes to the vacuole, cytoplasm, and extracellular space. OsBG1 is associated with numerous agronomic traits including grain yield, grain weight, grain size, grain length, grain number, seed size, amylose content, protein content, sucrose content, plant height, panicle length, leaf length, brittle culm, embryoless seed, transpiration rate, and stomatal resistance. Studies of related genes in other species link the family to glucan hydrolysis.