AGR — Solanum tuberosum

Summary

StAGR (PGSC0003DMG400005750) on potato chromosome 3 encodes an auxin efflux carrier component. The product possesses auxin efflux transmembrane transporter activity and inositol-1,4-bisphosphate 1-phosphatase activity, and is associated with auxin signalling, tropism, detection of oxidative stress, regulation of endocytosis, and anthocyanin accumulation in response to UV light. It localises to the auxin efflux carrier complex, basal plasma membrane, recycling endosome, and clathrin-coated endocytic vesicle. The gene is linked to potato development, and has been connected to traits including root length, gravity response, phototropism, seed weight, shoot branching, leaf vein morphology, and brassinosteroid content. Studies of related genes in other species link the family to root hair outgrowth, lateral root organogenesis, and vascular development.