AFB1 — Oryza sativa Japonica

Summary

OsAFB1 (Os11g0515500) encodes a protein with a COI1_F-box domain and leucine-rich repeats, and is annotated with auxin receptor activity, auxin binding, NEDD8 transferase activity, and multiple transporter activities including auxin influx and efflux transmembrane transporter activity. In rice, OsAFB1 is associated with defense, drought and salt stress responses, phosphate homeostasis, tillering, growth, and flower development. It is linked to the nuclear SCF complex and ubiquitin ligase complex, and to processes including SCF complex assembly, regulation of defense response by callose deposition, cellular response to nitrate, and establishment of planar polarity. The gene has been connected to traits such as grain yield, spikelets per panicle, root system architecture, lateral root positioning, adventitious root initiation, and phototropism response. Related genes in other species link the family to auxin perception, thermomorphogenesis, and herbicide sensitivity.