TPS5 — Lactuca sativa

Summary

LsTPS5 (gene LSAT_V11C300108460) on lettuce chromosome 3 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, 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. Related genes in other species are linked to trehalose-6-phosphate biosynthesis, carbon utilization, heat tolerance, and bacterial infection resistance, while related lettuce TPS genes are associated with terpene volatile emission, aphid resistance, and flowering time.