SHD — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.5HG0447870 (HvSHD) on barley chromosome 5H encodes a member of the heat shock protein 90 (Hsp90) family, containing Hsp90_N, Hsp90_C and HATPase domains, and is annotated with ATP-dependent protein folding chaperone activity. The gene is associated with diverse biological processes including vesicle organization, long-chain fatty acid metabolism, protein secretion, defense response to insect, de-etiolation, thylakoid membrane organization, and telomere maintenance. It has been linked to numerous agronomic traits such as maturity time, stem rust response, drought sensitivity, seed set percent, seed viability, pollen fertility, flowering time, root development, and high temperature stress response. Localization evidence connects the product to the chloroplast inner membrane, thylakoid, ER lumen, and Tic complex. Studies of related genes in other species link the Hsp90 family to thermotolerance, disease resistance, grain weight, and chloroplast function.