ARF — Cucumis sativus

Summary

CsARF (CSA_6G491660) encodes a small GTPase of the Arf1-5-like family, possessing ADP-ribosylation factor activity (EC 3.6.5.2) and annotated with multiple molecular functions including G protein activity, phosphatidylinositol kinase activity, and phospholipase activator activity. In cucumber, this 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, ethylene sensitivity, abscisic acid sensitivity, oxidative stress response, low temperature stress response, root mass density, lateral root length, and stomatal resistance. The gene is also associated with phototropism, blue light signaling, chloroplast accumulation movement, and leaf vascular tissue pattern formation. Studies of related genes in other species link the ARF family to vesicular transport, phototropic responses, and stress tolerance.