SUC1 — Pisum sativum

Summary

PSAT1G106800 (symbol SUC1, preferred name SUT5) on chromosome 1LG6 of garden pea encodes a protein belonging to the sucrose symporter plant family and the major facilitator superfamily. The gene product is associated with sucrose:proton symporter activity, maltose:proton symporter activity, and biotin transmembrane transporter activity, and is linked to phloem sucrose loading, glucoside transport, maltose transport, and carbohydrate membrane transport. It has been connected to grain yield, grain size, unfilled grain number, sucrose content, photosynthetic rate, drought tolerance, protein content, and phenolic compound content. Localisation associations include the tonoplast, plasmodesma, pollen tube, vacuole, and Golgi complex. Studies of related genes in other species link the family to phloem loading, carbon partitioning, grain yield, photoassimilate transport, pollen tube growth, root growth, and female gametophyte development.