SUC1 — Phaseolus vulgaris

Summary

PHAVU_004G086064, designated PvSUC1 (also known as PvSUT5, PvSUT1, PvSUT2, SUC8, SUC7, SUC6, ATSUC1, SUC5, ATSUC2, ATSUC5, SUC2, SUC1) on chromosome 4 of French bean (Phaseolus vulgaris), encodes a protein belonging to the Suc_symporter_pln and MFS transporter families. The gene is associated with phloem sucrose loading, glucoside and maltose transport, and proton transmembrane transport. It has been linked to grain yield, grain size, unfilled grain number, sucrose content, photosynthetic rate, drought tolerance, pollen fertility, and stomatal resistance. Additional associations include plant stress response, oxidative stress response, jasmonic acid content, auxin sensitivity, cell cycle traits, and root and shoot morphology. The gene is also connected to immunity, cell wall integrity, cytokinesis, and MAP kinase signaling. Studies of related genes in other species link the family to phloem loading, sugar transport, seed development, biotin transport, anther dehiscence, and pollen tube growth.