SUT — Beta vulgaris subsp. vulgaris

Summary

BvSUT (BVRB_1G000710) on sugar beet chromosome 1 encodes a protein belonging to the major facilitator superfamily with sucrose:proton symporter activity. The gene is associated with phloem sucrose loading and unloading, maltose transport, and proton transmembrane transport. It has been linked to agronomically important traits including sucrose content, grain yield, unfilled grain number, photosynthetic rate, respiration rate, root thickness, seed dormancy, days to flowering, and stress responses such as drought tolerance and oxidative stress response. Localization evidence connects the gene product to the tonoplast, cis-Golgi network, and pollen tube. Studies of related genes in other species link the family to phloem transport, carbon partitioning, grain yield, tuberization, and flowering time.