ARF — Cucumis sativus

Summary

CsARF (CSA_3G837640) on cucumber chromosome 3 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 has been linked to traits such as phototropism, blue light sensitivity, leaf vein morphology, biomass yield, water use efficiency, days to flowering, root mass density, ethylene sensitivity, stomatal resistance, low temperature stress response, leaf senescence, oxidative stress response, abscisic acid sensitivity, disease tolerance, and salt tolerance. Studies of related genes in other species connect the family to vesicular transport, phototropic responses, blue-light sensing, chloroplast relocation, stomatal aperture opening, and abiotic stress responses including salt and drought tolerance.