SHD — Asparagus officinalis

Summary

A4U43_C01F4930 (SHD) in asparagus (Asparagus officinalis) encodes a heat shock protein 90 family member, containing Hsp90 and HATPase domains, with ATP-dependent protein folding chaperone activity. The gene is associated with diverse biological processes including cellular response to unfolded protein, vesicle organization, and mitochondrial matrix protein import. It has been linked to numerous agronomically relevant traits such as floral organ morphology, seed set percent, submergence tolerance, temperature stress response, bacterial and viral disease response, aphid response, photoperiod-sensitive flowering time, and reproductive growth time. The gene product localizes to multiple cellular compartments including the chloroplast outer membrane, ER lumen, and plasma membrane. Studies of related genes in other species connect the HSP90 family to thermotolerance, broad-spectrum disease resistance, salinity tolerance, and developmental regulation.