SUT — Beta vulgaris subsp. vulgaris

Summary

BvSUT (BVRB_1G000720) on sugar beet chromosome 1 encodes a member of the major facilitator superfamily (MFS) of transporters, with molecular functions including sucrose:proton symporter activity, maltose:proton symporter activity, and arbutin, salicin and biotin transmembrane transporter activity. The gene is associated with phloem sucrose loading, maltose transport, and carbohydrate membrane transport. It is linked to agronomically important traits including grain yield, unfilled grain number, sucrose content, photosynthetic rate, respiration rate, root thickness, seed dormancy, days to flowering, and responses to abiotic stress, oxidative stress and drought. Associations also include triacylglycerol accumulation, fatty acid content, starch accumulation, phloem unloading, and plant development. Studies of related genes in other species link the family to phloem transport, carbon partitioning, grain size and yield, tuberization and flowering time.