AXR6 — Brachypodium distachyon

Summary

BdAXR6 (BRADI_2G35830V3) on chromosome 2 of Brachypodium distachyon encodes a cullin family protein with ubiquitin ligase complex scaffold activity, NEDD8 transferase activity, and auxin receptor activity. It is associated with regulation of ethylene biosynthesis, protein neddylation, response to organophosphorus, and regulation of post-embryonic root development. The gene has been linked to diverse traits including seed shattering, fruit ripening, bacterial blight disease resistance, photoperiod sensitivity, branch angle, and responses to Cercospora leaf spot, rice narrow brown leaf spot, and wheat common root rot. It is also connected to phenotypes such as auxin resistance, reduced seed set, embryo lethality, altered flowering time, and root hair growth. Studies of related genes in other species link the family to grain morphology, tiller number, biomass yield, drought stress, disease resistance, and seed oil content.