SHD — Solanum tuberosum

Summary

StSHD (PGSC0003DMG400014405) on potato chromosome 10 encodes a heat shock protein 90 (Hsp90) family chaperone, containing Hsp90_N, Hsp90_C, and HATPase_C domains, and is annotated 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, hormone metabolism, response to water, and negative regulation of cellulose anabolism. Associations extend to traits such as reducing sugar content, starch grain synthesis, plant fresh weight, root dry weight, submergence tolerance, and viral disease response. Localization evidence connects the protein to the ER lumen, chloroplast outer membrane, and vesicle. Studies of related genes in other species link it to thermotolerance, salinity tolerance, broad-spectrum disease resistance, and developmental regulation.