PR-1 — Solanum tuberosum

Summary

PGSC0003DMG400023936, designated StPR-1 on potato chromosome 9, encodes a PR1a protein belonging to the CAP superfamily, which includes the CRISP-related and Allrgn_V5/Tpx1_CS domains. The gene is associated with defense responses, including systemic acquired resistance, induced systemic resistance, and defense against other organisms, as well as cell death and secretion. It is linked to salicylic acid anabolism, sexual reproduction, pistil development, and primary metabolism. The protein localizes to the extracellular region and vacuole. StPR-1 is also associated with root volume and root length. Studies of related genes in other species connect the family to traits such as drought tolerance, seedling vigor, plant height, fruit size and weight, chlorophyll content, and heterosis.