TPS5 — Lactuca sativa

Summary

LsTPS5 (gene LSAT_V11C400182460) 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, mycose biosynthesis, ethylene signaling, and responses to heat, abscisic acid, and hypoxia. The gene is linked to yield, photosynthetic rate, temperature stress, oxidative stress, and disease tolerance traits. Phenotypic associations include thermotolerance, water-use efficiency, stomatal development and closure, seed germination, sugar and ABA signaling, and resistance to Botrytis cinerea and Pseudomonas syringae. Studies of related genes in other species link the family to trehalose-6-phosphate biosynthesis, carbon utilization, and bacterial infection resistance, as well as linalool synthesis and bacterial wilt resistance.