PR5 — Solanum lycopersicum

Summary

SlPR5 (SOLYC01G104290.3) on tomato chromosome 1 encodes a protein of the osmotin/thaumatin-like superfamily and has been annotated with mRNA and protein binding activities. The gene is associated with the regulation of proline, lycopene, salicylic acid, auxin, ethylene, chlorophyll and anthocyanin anabolism, as well as photoperiodism, fermentation, mRNA breakdown, and responses to cadmium, arachidonate, host organisms, and spore germination. Its product localises to the apoplast, cell wall, vacuole, plasmodesmata, secretory vesicles, membrane and mitochondria. SlPR5 is linked to fruit shape, sugar and protein content, seed size, stomatal opening, and sensitivities to acid and abscisic acid. Phenotypic associations include osmotic stress response, proline accumulation, disease resistance, fungal and insect resistance, salt and drought tolerance, and resistance to Verticillium dahliae and Pseudomonas syringae. Studies of related genes in other species connect the family to pathogen resistance, herbivore defense, cell wall integrity, and seed germination under salt stress.