BG1 — Oryza sativa Japonica

Summary

Os01g0801500 (BG1/Gns7) encodes a glycosyl hydrolase family 17 protein with glucan exo-1,3-beta-glucosidase, endo-1,3-beta-D-glucosidase, cellulase and lichenase activities. The gene is associated with grain shape, grain weight, grain yield, grain length, grain number, amylose content, protein content, panicle length, plant height, leaf length, seed size, embryoless seed, brittle culm, and grain filling period. It is associated with cytokinin transport, regulation of photosynthesis, stomatal movement, lateral root development, MAPK cascade, and 1,3-beta-glucan breakdown. The product localises to the apoplast, plant-type cell wall, secretory vesicle, vacuole, ER, Golgi, and plasmodesmata. Associations with salt tolerance, drought, disease resistance, pathogen defense, osmotic stress response, and anthocyanin accumulation have been observed. Studies of related genes in other species link it to plasmodesmal conductivity, callose degradation, and pathogen resistance.