SHD — Solanum lycopersicum

Summary

SlSHD (SOLYC03G007890.3) on tomato chromosome 3 encodes a heat shock protein 90 family member, containing Hsp90 and HATPase domains, and is annotated with ATP-dependent protein folding chaperone activity. In tomato, SlSHD is associated with responses to yellow leaf curl virus, salinity tolerance, heavy metal tolerance, root biomass, and developmental regulation. The gene is linked to diverse biological processes including cellular response to unfolded protein, base-excision repair, vesicle organization, and defense response respiratory burst. Associations extend to floral organ morphology, fruit maturation, seed set, plant immunity, temperature stress response, and pest resistance. Studies of related genes in other species connect SlSHD homologs to thermotolerance, broad-spectrum disease resistance, embryo development, chloroplast function, and cell division, while potato studies link the family to temperature stress tolerance and PVY susceptibility.