SHD — Solanum tuberosum

Summary

StSHD (PGSC0003DMG402028907) on potato chromosome 6 encodes a member of the Hsp90 family of ATP-dependent protein folding chaperones, containing the HSP90_C domain. In potato, StSHD is associated with temperature stress tolerance and PVY susceptibility. The gene is linked to a wide range of biological processes including the cellular response to unfolded protein, base-excision repair, vesicle organization, and long-chain fatty acid metabolism. Associations with agronomically relevant traits include reducing sugar content, starch grain synthesis, plant fresh weight, root dry weight, seed set percent, submergence tolerance, and responses to bacterial and viral diseases. StSHD is also connected to floral organ morphology, plastid development, and the vegetative to reproductive phase transition. Studies of related genes in other species link the family to thermotolerance, salinity tolerance, broad-spectrum disease resistance, and chloroplast function.