AFB1 — Brassica oleracea var. botrytis

Summary

BoAFB1 (BOLND125_C03P037930.1) on cauliflower chromosome 3 encodes a protein with F-box and leucine-rich repeat domains, characteristic of auxin receptor and ubiquitin ligase complex components. It is associated with auxin binding, auxin efflux transporter activity, NEDD8 transferase activity, and transcription cis-regulatory region binding. The gene is linked to auxin signaling, phototropism, gravitropism, and responses to heat stress, shade avoidance, and herbicides. It has been connected to numerous developmental traits including seedling cotyledon size, hypocotyl length, root development, lateral root initiation, floral organ number, petal size, stamen length, and seed germination. Associations also include defense response to insects, regulation of defense response by callose deposition, indole glucosinolate breakdown, cadmium transport, and cellular detoxification. Studies of related genes in other species link the family to drought tolerance, fungal resistance, auxin resistance, glucose signaling, and ammonium tolerance.