SHD — Solanum lycopersicum

Summary

SlSHD (SOLYC05G010670.3) on tomato chromosome 5 encodes a member of the Hsp90 family of ATP-dependent protein folding chaperones, containing the characteristic HSP90_C and Hsp90_fam domains. In tomato, this gene is associated with responses to yellow leaf curl virus, salinity tolerance, heavy metal tolerance, root biomass, and developmental regulation. It is linked to diverse biological processes including cellular response to unfolded protein, base-excision repair, vesicle organization, and respiratory burst in defense response. The encoded protein localizes to multiple cellular compartments such as the plasma membrane, chloroplast outer membrane, ER lumen, and vesicles. Associations with agronomically important traits include fruit maturation, pest resistance, seed set, submergence tolerance, bacterial and viral disease responses, temperature stress tolerance, and floral organ morphology. Studies of related genes in other species link the family to thermotolerance, broad-spectrum disease resistance, and plastid function.