SUT — Solanum lycopersicum

Summary

SUT1 (Solyc11g017010.2) encodes a protein with sucrose:proton symporter activity, belonging to the sucrose symporter family and the major facilitator superfamily. The gene is associated with phloem sucrose loading and unloading, maltose and citrate transport, and carbohydrate membrane transport. In tomato, SUT4 has been linked to flowering time, while SUT2 is associated with arbuscular mycorrhizal colonization, plant height, and pollen vitality. The gene has been connected to numerous agronomic traits including grain yield, fruit weight, starch content, sucrose content, net photosynthetic rate, leaf chlorophyll content, seedling height, flower abortion, and germination rate. Additional associations include response to water, phloem development, and cell cycle regulation. The protein localizes to the tonoplast, chloroplast outer membrane, pollen tube, and cis-Golgi network.