AGR — Zea mays

Summary

ZM00001EB372180 (AGR, also known as ZmWAV6 and multiple PIN designations) on maize chromosome 9 encodes a PIN-like auxin efflux carrier family protein with auxin efflux transmembrane transporter activity, inositol-1,4-bisphosphate 1-phosphatase activity, and phosphoinositide binding capabilities. The gene is associated with auxin efflux carrier complex localization at the basal plasma membrane and recycling endosome. It is associated with tropism, lateral growth, regulation of cell polarization, phragmoplast microtubule organization, endocytosis, and plant organ boundary formation. Associations include agronomically important traits such as kernel number per row, ear length, seed set percent, radiation use efficiency, shoot growth angle, leaf vein morphology, inflorescence branching, root volume, and responses to gravity, blue light, oxidative stress, and boron. Studies of related genes in other species link the family to plant height, tillering, root architecture, chilling tolerance, and aluminum tolerance.