PR1 — Triticum turgidum subsp. durum

Summary

TRITD5AV1G132890 (symbol PR1, TtPR1) on durum wheat chromosome 5A encodes a protein containing a CAP domain (cysteine-rich secretory protein-related family) and is annotated with cytokine activity and protein binding. This gene is associated with defence responses, including systemic acquired resistance, induced systemic resistance, and responses to bacteria, jasmonic acid, ethylene, salicylate, wounding, and herbivores. It is linked to disease resistance against pathogens such as Rhizoctonia solani, Pseudomonas syringae, and Alternaria brassicicola, as well as to salt tolerance, cadmium response, lateral root development, and sexual reproduction. The encoded protein localises to the extracellular region, plant-type cell wall, vacuole, and secretory vesicles. Studies of related genes in other species connect the family to pathogen resistance, salicylic acid-mediated defence, and abiotic stress tolerance.