AUX1 — Oryza sativa Japonica

Summary

OsAUX1 (AUX1, also known as LAX1, PIR1, RAU1, and WAV5) on rice chromosome 5 encodes a protein with an AA_transpt_TM domain and is associated with auxin influx transmembrane transporter activity, auxin receptor activity, auxin binding, and amino acid permease activity. The gene is associated with root system development, lateral root formation, root hair differentiation, gravitropism, and circumnutation. It is linked to inflorescence morphogenesis, stigma development, meristem development, and spikelet development. Associations include tillering, grain width, panicle length, spikelet number, grain yield per plant, root nitrogen content, salinity tolerance, herbicide sensitivity, and ethylene sensitivity. The product localizes to the plasma membrane, endosome, Golgi complex, and SCF complex. Studies of related genes in other species link the family to root gravitropism, auxin distribution, and lateral root positioning.