IRX9 (IRREGULAR XYLEM 9); transferase, transferring glycosyl groups / xylosyltransferase. similar to glycosyl transferase family 43 protein [Arabidopsis thaliana] (TAIR:AT1G27600.2); similar to glycosyl transferase family 43 protein [Arabidopsis thaliana] (TAIR:AT1G27600.1); similar to secondary cell wall-related glycosyltransferase family 43 [Populus tremula x Populus tremuloides] (GB:AAX33319.1); contains InterPro domain Glycosyl transferase, family 43; (InterPro:IPR005027)