BG1 — Solanum lycopersicum

Summary

Tomato gene BG1 (BGL2, PR-2) on chromosome 10 encodes a member of the glycosyl hydrolase 17 family with glucan exo-1,3-beta-glucosidase, lichenase, cellulase and glucan endo-1,3-beta-D-glucosidase activities. The encoded protein is associated with herbivore defense and sugar/organic acid ratio in tomato. It is linked to defense response to nematode, viral life cycle, host invasion, induced systemic resistance, hypersensitivity, abscission, nonphotochemical quenching, fermentation, H2O2 biosynthetic process, camalexin anabolism, and response to water. The protein localizes to the apoplast, plant-type cell wall, vacuole, secretory vesicle, Golgi, mitochondria, and cytosol. Associations with fruit weight, sugar content, chlorophyll content, photosynthetic rate, transpiration rate, nitrate uptake, root and shoot traits, germination rate, seed maturation, and tolerance to biotic and abiotic stresses including drought, salt, and dehydration have been observed.