PR1 — Triticum turgidum subsp. durum

Summary

TRITD5AV1G219300, designated PR1 on durum wheat chromosome 5A, encodes a protein containing a CAP (cysteine-rich secretory protein) domain and V5 allergen-like family signature, with annotated cytokine activity and protein binding. This gene is associated with defence responses to bacteria, herbivores, wounding, and other organisms, as well as responses to salicylic acid, jasmonic acid, and ethylene. It is linked to systemic acquired resistance, induced systemic resistance, disease resistance, salt tolerance, cadmium response, and lateral root development. The encoded protein localises to the secretory vesicle, vacuole, plant-type cell wall, and extracellular space. Studies of related genes in other species connect the PR1 family to pathogen resistance, salicylic acid-mediated defence, and abiotic stress tolerance.