PG2 — Capsicum annuum

Summary

CaPG2 (PG2) on pepper chromosome 10 encodes a polygalacturonase, a protein with polygalacturonase activity. The gene is associated with fruit abscission, fruit dehiscence, anther dehiscence, floral organ abscission, and cell wall modification involved in abscission. It is also linked to fruit ripening, pectin breakdown, demethylation, cell wall organization, oxidative phosphorylation, carbohydrate metabolism, and NO storage. The encoded protein localizes to the apoplast, extracellular region, and amyloplast. CaPG2 has been connected to polysaccharide content, defense response, silique dehiscence, root cell elongation, cell adhesion, cell wall remodeling, and pectin degradation. Studies of related genes in other species link the family to seed dispersal, abscission, indehiscent siliques, and resistance to Pseudomonas syringae pv. tomato DC3000.