TPS5 — Lactuca sativa

Summary

LsTPS5 (gene LSAT_V11C800415520) on lettuce chromosome 8 encodes a protein with trehalose-phosphatase and transglucosylase activities, belonging to the Glyco_trans_20 and trehalose-phosphatase domain families. It is associated with terpenoid metabolism, mycose biosynthesis, and ethylene-mediated signalling, and has been linked to responses to heat, abscisic acid, hypoxia, and thirst. The gene is associated with yield, photosynthetic rate, and abiotic stress response traits, as well as thermotolerance, water-use efficiency, stomatal function, seed germination, and defence responses to Botrytis cinerea and Pseudomonas syringae. Additionally, LsTPS5 is associated with spider mite resistance, aphid resistance, flowering time, and carbon allocation to starch and amino acids. Studies of related genes in other species link the family to trehalose-6-phosphate biosynthesis, heat tolerance, bacterial wilt resistance, and monoterpene production.