ARF — Cucumis sativus

Summary

CsARF (CSA_7G072830) on cucumber chromosome 7 encodes a small GTPase of the ARF1-5-like family, with annotated molecular functions including G protein activity, phosphatidylinositol kinase activity, and phospholipase activator activity. The gene is associated with vesicle-mediated transport to the plasma membrane, ER-to-Golgi transport, Golgi organization, and regulation of auxin metabolism. It is linked to numerous agronomically relevant traits including biomass yield, water use efficiency, days to flowering, leaf senescence, disease tolerance, oxidative stress response, low temperature stress response, abscisic acid sensitivity, and ethylene sensitivity. Additional associations include phototropism response, leaf vein morphology, root and shoot development traits, and blue light sensitivity. Studies of related genes in other species connect the family to vesicular transport, phototropic responses, chloroplast relocation, stomatal aperture regulation, and abiotic stress tolerance.