PR1B1 — Solanum lycopersicum

Summary

SOLYC09G007010.1 (PR1B1) on tomato chromosome 9 encodes a protein containing a CAP domain and a CRISP-related domain. This gene is associated with a wide range of biological processes including the lipoxygenase pathway, protein oxidation, nitrogen fixation, quorum sensing, biofilm formation, sporulation, and host invasion. It is linked to numerous agronomically important traits such as fruit firmness, fructose and sugar content, plant height, stem width and length, root weight and length, leaf number, chlorophyll content, photosynthetic rate, stomatal resistance, water use efficiency, and drought tolerance. The encoded protein is localised to the extracellular region and the vacuole. Studies of related genes in other species, including PR-1A and PR-1B, further connect the family to pathogenesis-related responses.