ARF — Solanum tuberosum

Summary

PGSC0003DMG400025585 (ARF) on potato chromosome 4 encodes a member of the Arf1-5-like small GTPase family, with ADP-ribosylation factor activity (EC 3.6.5.2) and additional 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, protein retention in the ER lumen, and regulation of auxin metabolism and proton transport. It is linked to shoot morphogenesis, chloroplast accumulation movement, blue light signaling, anthocyanin biosynthesis, and phloem transport. Associations with agronomic traits include biomass yield, water use efficiency, chlorophyll content, days to flowering, root mass density, leaf senescence, disease tolerance, and responses to oxidative stress, low temperature, ethylene, abscisic acid, and salt. Studies of related genes in other species connect the family to phototropism, chloroplast relocation, stomatal opening, and vesicular trafficking.