AFB1 — triticum aestivum

Summary

TRAESCS1A02G091300 (AFB1, also known as TIR1-1) on bread wheat chromosome 1A encodes a protein with F-box and leucine-rich repeat domains, and is annotated with auxin receptor activity, auxin binding, NEDD8 transferase activity, and multiple transporter activities including auxin influx and efflux. In wheat, AFB1 is associated with leaf rust resistance. The gene is associated with auxin signalling pathways, SCF complex assembly, regulation of defense response by callose deposition, and responses to nitrate and cyclopentenone. It localises to the nuclear SCF complex and ubiquitin ligase complex. Associations include seedling cotyledon size, molybdenum content, adventitious root number, seed yield, biomass, phototropism, herbicide sensitivity, and temperature stress response. Related genes in other species link the gene to auxin sensitivity, root branching, grain weight, grain yield, and leaf flattening.