PG2 — Brassica juncea

Summary

BJUB06G11000S (symbol PG2, preferred name BjADPG1) on Indian mustard (Brassica juncea) chromosome B06 encodes a polygalacturonase with exo-D-galacturonase activity, belonging to the Glyco_hydro_28 and pectin lyase fold families. The gene is associated with cell wall modification involved in abscission, dehiscence (anther and fruit), fruit ripening, pectin breakdown, auxin anabolism, ABA signaling, and carbohydrate metabolism. Its product localizes to the amyloplast, apoplast, and extracellular space. Associations also include defense response and cell wall remodeling. Studies of related genes in other species link the family to silique dehiscence and seed dispersal, with transferred evidence connecting the family to silique fruit morphology and lignin content traits.