AGR — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.1HG0073990 (HvAGR) on barley chromosome 1H encodes a PIN-like auxin efflux carrier, a member of the auxin efflux carrier family, and is annotated with auxin efflux and influx transmembrane transporter activities, inositol-1,4-bisphosphate 1-phosphatase activity, and phosphatidylinositol phosphate binding. The gene is associated with tropism, regulation of cell polarization, endocytic recycling, detection of oxidative stress, and response to cation stress. It is linked to traits including gravity response, phototropism, shoot growth angle, seed set percent, leaf vein morphology, root phototropism, and sensitivity to blue light, ethylene, and manganese. The gene product localizes to the basal plasma membrane, auxin efflux carrier complex, recycling endosome, and clathrin-coated endocytic vesicle. Studies of related genes in other species connect the family to plant height, tiller number, root system architecture, adventitious root emergence, and pollen development.