SHD — Solanum tuberosum

Summary

PGSC0003DMG400022159 (StSHD) on potato chromosome 7 encodes a heat shock cognate protein 80, a member of the Hsp90 family with ATP-dependent protein folding chaperone activity. In potato, StSHD is associated with temperature stress tolerance and PVY susceptibility. The gene is linked to diverse biological processes including cellular response to unfolded protein, base-excision repair, vesicle organization, long-chain fatty acid metabolism, and defense response respiratory burst. It has been connected to traits such as floral organ morphology, plant fresh weight, reducing sugar content, starch grain synthesis, submergence tolerance, bacterial and viral disease responses, temperature stress response, and photoperiod-sensitive flowering time. Studies of related genes in other species link the family to thermotolerance, broad-spectrum disease resistance, salinity tolerance, and chloroplast function.