SHD — Sorghum bicolor

Summary

SORBI_3007G224100 (SbSHD) on sorghum chromosome 7 encodes a heat shock protein 90 family member with ATP-dependent protein folding chaperone activity and additional annotated functions including CDP-glycerol diphosphatase, pectate lyase, and SAM-dependent methyltransferase activities. The gene is associated with diverse biological processes such as thylakoid membrane organization, defense response to insects, fatty acid beta-oxidation, cytokinin anabolism, telomere maintenance, and protein stabilization. SbSHD is linked to agronomically important traits including flowering time, seed set percent, seed viability, seed dormancy, pollen fertility, root development, plant growth, maturity time, and responses to high temperature stress, bacterial disease, insect damage, and abiotic stress. The protein localizes to chloroplast thylakoid and inner membrane, ER lumen, and the Tic complex. Studies of related genes in other species connect the HSP90 family to thermotolerance, disease resistance, thylakoid membrane homeostasis, and mitochondrial function.