PR1 — Solanum lycopersicum

Summary

SOLYC10G048100.3, designated PR1 in tomato (Solanum lycopersicum) on chromosome 10, encodes a protein belonging to the CAP (cysteine-rich secretory protein, antigen 5, and pathogenesis-related 1) superfamily. The gene is associated with disease resistance, including resistance to bacterial wilt, bacterial leaf spot, viruses, and nematodes, as well as defense against herbivores and the fungal pathogen Botrytis cinerea. PR1 is also linked to drought tolerance, inhibition of salinity response, and traits such as fructose and sucrose content, root weight, plant height, chlorophyll content, net photosynthetic rate, transpiration rate, water use efficiency, and stomatal resistance. The protein localizes to the extracellular region and vacuole. Studies of related genes in other species connect the family to salt tolerance.