AXR6 — Brachypodium distachyon

Summary

BdAXR6 (BRADI_2G12970V3) on chromosome 2 of Brachypodium distachyon encodes a cullin family protein with ubiquitin ligase complex scaffold activity, NEDD8 transferase activity, and auxin receptor activity. The gene is associated with regulation of ethylene biosynthesis, protein neddylation, post-embryonic root development, and responses to organophosphorus compounds and potassium ions. It has been linked to traits including seed shattering, fruit ripening, photoperiod sensitivity, bacterial blight disease resistance, and responses to Cercospora leaf spot, rice narrow brown leaf spot, and wheat common root rot. Localization evidence connects the product to the CRL complex, nucleotide-excision repair complex, and chromatin silencing complex. Studies of related genes in other species link the cullin family to grain morphology, tiller number, grain yield, drought stress, and disease resistance.