AXR6 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.1HG0022060 (HvAXR6) on barley chromosome 1H encodes a cullin family protein with ubiquitin ligase complex scaffold activity, NEDD8 transferase activity and auxin receptor activity. The gene is associated with grain morphology in barley and linked to diverse processes including regulation of ethylene biosynthesis, protein neddylation, response to organophosphorus, DNA damage signalling, root development and gibberellic acid signalling. Associations extend to traits such as Cercospora leaf spot response, bacterial blight disease resistance, photoperiod sensitivity, iron and sulfur content, endosperm morphology, and fruit ripening. Related genes in other species link the family to auxin resistance, fertility, UV-B tolerance, nitrate response, seed oil composition, far-red light signalling, lesion mimic, drought stress and biotic stress responses.