ARF — Solanum lycopersicum

Summary

SlARF (SOLYC01G008000.3) on tomato chromosome 1 encodes a small GTPase of the Arf1-5-like family, with annotated molecular functions including G protein activity, phosphatidylinositol kinase activity, and phospholipase activator activity. The gene is associated with diverse biological processes such as leaflet and sepal formation, placentation, root system development, carotenoid and chlorophyll metabolism, vesicle-mediated transport, and regulation of auxin metabolism. It localizes to Golgi-associated vesicles, COPII-coated vesicles, the cis-Golgi network, and early endosomes. SlARF is associated with agronomically important traits including fruit firmness and size, biomass yield, starch and sugar content, leaf relative water content, water use efficiency, chlorophyll content, days to flowering, stem elongation, root length and mass density, and responses to light, ethylene, low temperature, and viral disease. Related genes in other species are associated with vesicular transport, phototropism, blue-light sensing, chloroplast relocation, stomatal aperture opening, and abiotic stress tolerance.