SUCS — Phaseolus vulgaris

Summary

PHAVU_003G127500 (PvSUCS) on chromosome 3 of French bean (Phaseolus vulgaris) encodes a sucrose synthase, possessing sucrose synthase activity and transglycosidase activity, and belongs to the sucrose synthase family with SUS_EPBD, SUS_N, and Glyco_trans_1 domains. The gene is associated with sucrose metabolism, seed development, nodulation, and responses to hypoxia, flooding, osmotic stress, and nitrate starvation. It has been linked to grain yield, total soluble sugar content, fruit quality, photosynthetic rate, flowering time, root development, and carotenoid and anthocyanin content. PvSUCS is also associated with hypoxia tolerance, drought response, cold stress tolerance, and sugar homeostasis. Studies of related genes in other species link the family to starch and cellulose biosynthesis, carbon allocation, and anaerobic stress response, as well as grain yield and thermotolerance.