PR1 — Fusarium oxysporum f. sp. lycopersici 4287

Summary

FOXG_12263 (PR1) on chromosome 13 of Fusarium oxysporum f. sp. lycopersici 4287 encodes a serine-type endopeptidase belonging to the peptidase S8 subtilisin-related family, with metal-binding capacity. The gene is associated with induced systemic resistance, host invasion, siderophore anabolism, secretion, and proteolysis, and its product localises to the extracellular. PR1 is linked to root dry weight and chlorophyll content, and is related to the fungal effectors AsES, ALP, and ALP1. Studies of related genes in other species connect the family to apoplastic and cytoplasmic effector functions, as well as to traits including drought tolerance, root length, germination rate, leaf curling, lignin content, and heterosis, though these are not established for this specific gene.