SUT — Solanum lycopersicum

Summary

SOLYC04G076960.4 (SUT2) encodes a sucrose:proton symporter belonging to the sucrose permease and major facilitator superfamily, with additional annotated activities including maltose:proton symport, arbutin, salicin and biotin transmembrane transport. In tomato, SUT2 is associated with arbuscular mycorrhizal colonization, arbuscular morphology, plant height, pollen vitality and flowering time. The gene is associated with phloem sucrose loading and unloading, maltose and citrate transport, carbohydrate membrane transport, and response to water. Associations with agronomic traits include grain yield, fruit weight, sucrose and starch content, net photosynthetic rate, water use efficiency, drought recovery, leaf chlorophyll content, seedling height, stem diameter, germination rate, days to flowering, and phenolic compound content. Studies of related genes in other species link the family to phloem transport, carbon partitioning, seed development, and abiotic stress tolerance.