BG2 — Brassica oleracea var. botrytis

Summary

BoBG2 (BG2) on cauliflower chromosome 8 encodes a glycosyl hydrolase family 17 protein with lichenase, cellulase, glucan exo-1,3-beta-glucosidase and glucan endo-1,3-beta-D-glucosidase activities, and also binds phosphorylated amino acids and other proteins. The gene is associated with carbohydrate metabolism, brassinosteroid-mediated signalling and response to cold. Its product localises to the secretory vesicle, vacuole, plant-type cell wall, apoplast, Golgi, mitochondria and cytosol. BoBG2 is associated with nitrate uptake and assimilation, organ identity, leaf composition, seedling growth and development, aphid susceptibility, defence and disease resistance, callose deposition and biosynthesis, drought and salt tolerance, dehydration and osmotic stress resistance, systemic acquired resistance, cellulose biosynthesis, leaf development, cell proliferation and signal transduction. Studies of related genes in other species connect the family to induced systemic resistance, pathogen and virus resistance, cell wall modification, organ size, calcium signalling and disease resistance to Botrytis cinerea.