TPS5 — Lactuca sativa

Summary

LsTPS5, also known as TPS5, is a garden lettuce gene on chromosome 5 that 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 responses to heat, abscisic acid, ethylene, and hypoxia. The gene has been linked to yield, photosynthetic rate, and abiotic stress responses including temperature and oxidative stress. Associations with thermotolerance, water-use efficiency, stomatal function, seed germination, and defense responses to Botrytis cinerea and Pseudomonas syringae have been observed. Additionally, it is connected to spider mite resistance, aphid resistance, flowering time, and carbon allocation traits. Studies of related genes in other species link the TPS family to trehalose-6-phosphate biosynthesis, heat tolerance, and bacterial wilt resistance.