AFB1 — Triticum turgidum subsp. durum

Summary

TRITD5AV1G165690 (AFB1) on durum wheat chromosome 5A encodes a protein with F-box and leucine-rich repeat domains that exhibits auxin receptor activity, auxin binding, NEDD8 transferase activity, and ubiquitin-like protein transferase activity. It is associated with leaf rust resistance in this species. The gene is associated with auxin signalling pathways, SCF complex assembly, regulation of lateral root development, and responses to nitrate and cyclopentenone. It localises to the nuclear SCF complex and ubiquitin ligase complex. Associations extend to traits including seedling cotyledon size, root hair length, phototropism, herbicide sensitivity, seed yield, biomass, and responses to temperature, light, aluminium, and acid. Studies of related genes in other species link the family to auxin resistance, root development, rosette morphology, leaf blast disease response, grain yield, and grain size.