ARF — Cucumis sativus

Summary

CsARF (CSA_5G524710) on cucumber chromosome 5 encodes a small GTPase of the ARF1-5-like family, with annotated activities including G protein activity, phosphatidylinositol kinase activity, phospholipase activator activity, and actin binding. 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 phototropism, blue light signaling, chloroplast accumulation movement, and positive gravitropism. Trait associations include biomass yield, water use efficiency, days to flowering, leaf senescence, disease tolerance, and responses to abscisic acid, ethylene, low temperature, and oxidative stress. The gene is also connected to root and shoot development, including lateral root length, root mass density, and leaf vein morphology. Studies of related genes in other species link the family to vesicular transport, phototropic responses, and guard cell regulation.