SKP1 — Solanum lycopersicum

Summary

SOLYC01G111650.3 (SKP1) on tomato chromosome 1 encodes a SKP1-like protein containing a Skp1 component dimerisation domain, placing it in the SKP1/BTB/POZ superfamily. The gene product is associated with diverse molecular functions including auxin receptor activity, MAPK phosphatase activity, and cullin family protein binding. SKP1 is linked to SCF-dependent proteasomal ubiquitin-dependent protein breakdown, regulation of gibberellic acid-mediated signalling, and pigment metabolism. It has been connected to numerous agronomic traits including bacterial blight disease resistance, submergence tolerance, heterosis, seed oil content, seedling vigour, and plant male sterility. The gene is also associated with heat and cold stress tolerance, leaf morphology traits, and root hair density. Studies of related genes in other species link the SKP1 family to floral organ development, jasmonate perception, and defence against necrotrophic pathogens.