ARF — Solanum tuberosum

Summary

StARF (PGSC0003DMG402016407) on potato chromosome 1 encodes a small GTPase of the Arf1-5-like family, with annotated molecular functions 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 protein retention in the ER lumen. It is linked to regulation of auxin metabolism and anabolism, shoot morphogenesis, chloroplast accumulation movement, and blue light signaling. Associations with agronomically relevant traits include biomass yield, water use efficiency, chlorophyll content, days to flowering, root mass density, stomatal resistance, disease tolerance, and responses to low temperature, oxidative stress, and ethylene. Related genes in other species are linked to vesicular transport, phototropism, blue-light sensing, chloroplast relocation, stomatal aperture opening, and abiotic stress tolerance.