PR-1 — Solanum tuberosum

Summary

PGSC0003DMG400043108, designated StPR-1 on potato chromosome 7, encodes a CAP-domain protein of the V5-allergen-like family, also known as a pathogenesis-related protein 1. The gene is associated with defense responses, including late blight resistance, Phytophthora infestans resistance, nematode resistance, and systemic acquired resistance. It has been connected to salicylic acid anabolism, induced systemic resistance, cell death, secretion, and sexual reproduction, as well as pistil development and primary metabolism. The product localizes to the extracellular region and vacuole. StPR-1 is also linked to root volume and root length traits. Studies of related genes in tomato associate the family with pathogen and herbivore resistance, while sequence similarity links in other species connect the family to traits including drought tolerance, chlorophyll content, plant height, fruit size, and seedling vigor.