AGR — Oryza sativa Japonica

Summary

OsAGR (OS01G0643300) on rice chromosome 1 encodes a PIN-like auxin efflux carrier, also known as PIN10A, WAV6, OsEIR1, PIN6, OsMM31, PIN8, PIN7, OsAGR1, MM31, AGR1, PIN1D, and EIR1. The product possesses auxin efflux transmembrane transporter activity, inositol-1,4-bisphosphate 1-phosphatase activity, and binds various phosphoinositides and clathrin. In rice, the gene is associated with plant height, tiller number, root architecture, aluminium tolerance, root growth angle, adventitious root emergence, reproductive development, and inflorescence morphology. It is associated with tropism, oxidative stress detection, phosphoinositide-mediated signaling, endocytosis regulation, and cell wall organization. The protein localizes to the auxin efflux carrier complex, basal plasma membrane, recycling endosome, and clathrin-coated vesicles. Studies of related genes in other species link the family to phototropism, root patterning, and osmotic stress tolerance.