AGR — Brachypodium distachyon

Summary

BdAGR (BRADI_2G52640V3) on chromosome 2 of Brachypodium distachyon encodes a member of the auxin efflux carrier family with inositol-1,4-bisphosphate 1-phosphatase activity, auxin influx and efflux transmembrane transporter activities, and binding affinities for various phosphatidylinositol phosphates and clathrin. The gene is associated with detection of oxidative stress, tropism, regulation of endocytosis, phragmoplast microtubule organization, and cell polarization. It has been linked to flower formation, gravity response, phototropism, root and shoot growth angles, leaf vein morphology, seed set, stamen and anther traits, and responses to blue light, ethylene, boron, and osmotic stress. Associations also include auxin signalling, clathrin-mediated endocytosis of PIN proteins, and regulation of seed size. Related genes in other species link the family to plant height, tiller number, aluminium tolerance, and root system architecture.