ARF — Capsicum annuum

Summary

CaARF (T459_16877) on pepper chromosome 6 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 regulation of auxin metabolism. It is linked to biomass yield, water use efficiency, days to flowering, root mass density, lateral root length, disease tolerance, abiotic stress response, leaf senescence, and phototropism responses. Additional associations include blue light sensitivity, ethylene sensitivity, abscisic acid sensitivity, and viral disease response. Studies of related genes in other species link the family to phototropic growth, chloroplast relocation, stomatal opening, and salt and drought tolerance, and to fruit set and stress response.