AP2 — Phaseolus vulgaris

Summary

PHAVU_006G147900, designated PvAP2 in French bean (Phaseolus vulgaris, chromosome 6), encodes an aspartic endopeptidase with endopeptidase activity, belonging to the saposin-like and aspartic peptidase A1 domain families. The gene is associated with proteolysis, primary metabolism, organogenesis, nodulation, nitrogen fixation, and responses to cadmium, thirst, and light intensity. Its product localises to the vacuole, protein storage vacuole, secretory vesicle, plasmodesma, extracellular space, and nucleus. PvAP2 is associated with photosynthetic rate, seed size, salt response, stomatal density, and stomatal aperture. Studies of related genes in other species link the family to traits including grain yield, seed weight and length, root and stem biomass, leaf number, net photosynthetic rate, transpiration rate, sugar and starch content, and floral organ identity.