TPS5 — Lactuca sativa

Summary

LsTPS5 (gene LSAT_V11C800452120) on lettuce chromosome 8 encodes a protein with trehalose-phosphatase and transglucosylase activities, and also carries domains associated with DNA binding transcription factor activity. The gene is associated with terpenoid metabolism and mycose biosynthesis, as well as responses to heat, abscisic acid, ethylene signalling, and hypoxia. It is linked to yield, photosynthetic rate, temperature stress, oxidative stress, and disease tolerance traits. Observations of related TPS5 family members associate this gene with thermotolerance, water-use efficiency, stomatal function, seed germination, abscisic acid and sugar signalling, and defense responses to Botrytis cinerea and Pseudomonas syringae. The family is also linked to flowering time, aphid and spider mite resistance, carbon allocation, and terpene volatile emission. Related genes in other species connect the TPS family to trehalose-6-phosphate biosynthesis, heat tolerance, and bacterial resistance.