SHD — Asparagus officinalis

Summary

A4U43_C05F12940 (SHD) on asparagus chromosome 5 encodes a heat shock protein 90 (Hsp90) family member, containing Hsp90 and HATPase domains. The gene is associated with ATP-dependent protein folding chaperone activity and has been linked to diverse molecular functions including DNA polymerase activity, transcription regulator activity, and telomeric repeat binding. It is connected to biological processes such as cellular response to unfolded protein, cellular response to brassinosteroid stimulus, double-strand break repair, and negative regulation of cellulose anabolism. Associations with agronomically relevant traits include floral organ morphology, seed set percent, submergence tolerance, bacterial and viral disease responses, temperature stress response trait, photoperiod-sensitive flowering time trait, and starch grain synthesis. The gene product localizes to the chloroplast outer membrane, ER lumen, and cell periphery. Studies of related genes in other species link the family to thermotolerance, broad-spectrum disease resistance, and salinity tolerance.