ARF — Solanum tuberosum

Summary

PGSC0003DMG400029472, designated StARF on potato chromosome 4, encodes a member of the Arf1-5-like small GTPase family, possessing GTP-binding and P-loop NTPase domains. The gene is associated with a broad range of molecular functions including G protein activity, phosphatidylinositol kinase activity, phospholipase activator activity, and actin binding. StARF is linked to vesicle-mediated transport to the plasma membrane, ER-to-Golgi transport, Golgi organization, and protein retention in the ER lumen. It has been connected to shoot morphogenesis, auxin metabolism, phototropism, blue light signaling, and chloroplast accumulation movement. Associations with agronomic traits include biomass yield, water use efficiency, chlorophyll content, disease tolerance, salt tolerance, root mass density, days to flowering, and leaf senescence. The encoded protein localizes to Golgi-associated vesicles, COPII-coated vesicles, the ER membrane, and the trans-Golgi network.