BG1 — Oryza sativa Japonica

Summary

OS01G0713200 (BG1, also known as Gns10) 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 cell maturation, regulation and downregulation of photosynthesis, cytokinin transport, MAPK cascade signalling, and 1,3-beta-glucan breakdown. It localises to the apoplast, plant-type cell wall, secretory vesicle, vacuole, ER, Golgi, plasmodesmata and mitochondria. BG1 has been linked to grain yield, grain weight, grain length, grain shape, grain number, seed size, amylose content, protein content, panicle length, plant height, leaf length, and traits related to drought, salt tolerance, osmotic stress, nitrate uptake, transpiration and stomatal resistance. Associations also include disease resistance, pathogen defence, systemic acquired resistance, anthocyanin accumulation, abscisic acid biosynthesis, phosphate acquisition and callose deposition. Studies of related genes in other species link the family to plasmodesmal conductivity, cell wall modification, and defence against Botrytis cinerea and viruses.