TPS5 — Lactuca sativa

Summary

LsTPS5 (gene LSAT_V11C400176130) on lettuce chromosome 4 encodes a protein with trehalose-phosphatase and transglucosylase activities, containing Glyco_trans_20 and trehalose_PPase domains. It is associated with terpenoid metabolism, trehalose biosynthesis, and responses to heat, abscisic acid, hypoxia, and ethylene signaling. The gene is linked to yield, photosynthetic rate, temperature stress, oxidative stress, and disease tolerance traits. Phenotypic associations include thermotolerance, water-use efficiency, stomatal function, seed germination, sugar signaling, and resistance to Botrytis cinerea and Pseudomonas syringae. Studies of related genes in other species connect it to trehalose-6-phosphate biosynthesis, carbon utilization, heat tolerance, and bacterial infection resistance, while related genes in other species have been linked to linalool synthesis and bacterial wilt resistance.