PR1 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.7HG0668880, designated HvPR1 on barley chromosome 7H, encodes a protein containing a CAP domain and V5 allergen-like family signature. The gene is associated with systemic acquired resistance, induced systemic resistance, immune response, defense response to other organisms, leaf senescence, embryogenesis, proteolysis, and signal transduction. Its product localises to the extracellular region and vacuole. HvPR1 is also linked to hydrogen peroxide content. Studies of related genes in other species, such as PR-1A and PRB1-2, connect this gene family to plant defense.