HSP70 — Daucus carota subsp. sativus

Summary

DCAR_001745 (DcHSP70) on carrot chromosome 1 encodes a member of the Hsp70 family of molecular chaperones, possessing ATP hydrolase activity, heat shock protein binding, and protein folding chaperone functions. It is associated with protein refolding, the ERAD pathway, sumoylation, and responses to heat, abscisic acid, and hypoxia. The gene has been connected to numerous agronomically relevant traits including photosynthetic rate, stomatal resistance and opening, leaf senescence, seed growth and development, flowering time, root morphology, stem elongation, and trichome morphology. It is also linked to thermotolerance, osmotic stress tolerance, ROS scavenging, chloroplast development, ethylene sensitivity and signaling, salt stress tolerance, and disease symptom development. Studies of related genes in other species link the family to protein import into chloroplasts, seed germination, ethylene perception, and immune response.