SHD — Solanum tuberosum

Summary

PGSC0003DMG400009940 (SHD, StHSP90.2) on potato chromosome 4 encodes an endoplasmin homolog belonging to the Hsp90 family, with ATP-dependent protein folding chaperone activity and additional annotated molecular functions including DNA polymerase, pectate lyase, and transcription regulator activities. In potato, this gene is associated with temperature stress tolerance and PVY susceptibility. It is linked to diverse biological processes including cellular response to unfolded protein, base-excision repair, double-strand break repair, proline metabolism, respiratory burst involved in defense response, and negative regulation of cellulose anabolism. The encoded protein localizes to the ER lumen, chloroplast outer membrane, and perinuclear region. Associations with agronomically relevant traits include reducing sugar content, starch grain synthesis, plant fresh weight, submergence tolerance, bacterial and viral disease responses, temperature stress response, and floral organ morphology.