ARF — Solanum lycopersicum

Summary

SlARF (SOLYC03G096910.3) on tomato chromosome 3 encodes a small GTPase of the Arf1-5-like family with GTPase, GTP-binding, protein kinase, and blue light photoreceptor activities, and is associated with phospholipase activator activity. The gene is associated with diverse developmental processes including leaflet and sepal formation, placentation, root system and adventitious root development, floral organ abscission, and system development. It is linked to carotenoid, chlorophyll, auxin, starch, polyamine, and cuticle metabolism, as well as chloroplast accumulation movement and acid secretion. The protein localizes to the plasma membrane, Golgi, cytoplasm, nucleus, and vacuole. SlARF is associated with agronomically important traits including fruit firmness and size, biomass yield, water use efficiency, sugar and starch content, leaf angle and shape, root length and mass density, days to flowering, stem elongation, chlorophyll content, and responses to light, ethylene, low temperature, oxidative stress, and viral disease.