SHD — Solanum tuberosum

Summary

PGSC0003DMG400005782 (StSHD) on potato chromosome 8 encodes a heat shock protein 90 family member with ATP-dependent protein folding chaperone activity. The gene is associated with temperature stress tolerance and PVY susceptibility in potato. It is linked to diverse biological processes including cellular response to unfolded protein, vesicle organization, base-excision repair, double-strand break repair, proline metabolism, long-chain fatty acid metabolism, and negative regulation of cellulose anabolism. Associations with agronomic traits include reducing sugar content, starch grain synthesis, plant fresh weight, root dry and fresh weight, seed set percent, submergence tolerance, temperature stress response, photoperiod-sensitive flowering time, chip color, fruit maturation, and pest resistance. The gene product localizes to the chloroplast outer membrane, ER lumen, vesicle, and perinuclear region. Studies of related genes in other species link the family to thermotolerance, salinity tolerance, disease resistance, and developmental regulation.