AGR — Zea mays

Summary

ZM00001EB150590 (ZmAGR, also known as ZmWAV6, PIN9, or PIN10A) on maize chromosome 3 encodes a PIN-like auxin efflux carrier protein, possessing auxin efflux transmembrane transporter activity and inositol-1,4-bisphosphate 1-phosphatase activity, along with phosphatidylinositol phosphate and clathrin binding. This gene is associated with auxin signalling and efflux pathways, and is linked to a wide range of developmental and agronomic traits including lateral root branching, tropism, inflorescence branching, shoot growth angle, seed set percent, leaf vein morphology, and gravity response. It is associated with responses to oxidative stress, cation stress, boron levels, and basic pH, as well as processes such as ethene metabolism, regulation of endocytosis, and cell polarization. Localisation evidence places the product at the basal plasma membrane, auxin efflux carrier complex, and recycling endosome. Studies of related genes in other species link the family to plant height, tiller number, root system architecture, and aluminium tolerance.