Phylogenetic position of Dorema within Ferula (Apiaceae)

Abstract Dorema (Apiaceae) includes 12 species distributed in the Irano-Turanian region. The genus differs from other genera of subfamily Apioideae having paniculate inflorescences with simple umbels. Recently, molecular phylogenetic analyses placed six Dorema, including generitype, Ferula , thus subsuming former into synonymy latter. remaining congeners have not been yet included analyses. Here, we fill this gap by determining position these species. Because a low resolution some parts tree earlier studies, alongside standard set markers—nuclear nrDNA ITS and plastid rps 16 rpo C1 introns B -trn C intergenic spacer—we additionally assessed utility ETS sequences resolving infrageneric relationships genus. We 43 ingroup representing major divisions recognised most recent taxonomic revision. Although were successful obtaining all markers for newly studied species, they high support one clade within section Peucedanoides together formerly maximum likelihood Bayesian nuclear, plastid, combined data sets. addition marker to confirmed classification increased branch tree. However, many branches still remained unresolved. In particular, monophyly as suggested morphology has definitely confirmed. A new combination two nomina nova are proposed.