AGR — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.4HG0356750, designated HvAGR on barley chromosome 4H, encodes an auxin efflux carrier of the PIN-like family, with annotated inositol-1,4-bisphosphate 1-phosphatase activity, auxin influx and efflux transmembrane transporter activities, and binding affinities for clathrin, phosphatidylinositol phosphates and phosphatidate. The gene is associated with auxin signalling and efflux pathways, gravitropism, tropism, endocytic recycling, regulation of cell polarization, phragmoplast microtubule organization, and responses to oxidative stress, cation stress, boron levels and basic pH. It is linked to traits including gravity response, phototropism, shoot growth angle, seed set, leaf vein morphology, stamen and anther morphology, root and shoot architecture, and sensitivity to blue light, ethylene, manganese, herbicides, gibberellic acid and osmotic stress. Related genes in other species connect the family to plant height, tillering, root system architecture, aluminium tolerance, chilling response and salicylic acid signalling.