ibclogo XVI International Botanical Congess


Abstract Number: 5522
Poster No. = 332


RELATIONSHIPS IN THE UMBELLIFERAE INFERRED FROM 288 ITS1-2 SEQUENCES


K.M.Valiejo-Roman, E.I.Terentieva, A.V.Troitsky, M.G.Pimenov, Moscow State University, Moscow 119899, Russia


The published or submitted up to end of 1998 sequences of ITS1-2 of ribosomal nuclear DNA were known for 246 species and 138 genera of the Umbelliferae.Resulted trees suggest the relationships considerably differ from traditional classifications. The family is clearly divided into two subfamilies - Apioideae and Saniculoideae (both monophyletic) but traditional Hydrocotyloideae are polyphyletic, Hydrocotyle being closer to Araliaceae and Pittosporaceae than to Apioideae+Saniculoideae. Sanicula+Hacquetia in Saniculoideae form monophyletic cluster, and Eryngium seems to be paraphyletic. Astrantia in Saniculoideae and Bupleurum in Apioideae are the most divergent taxa, the closest to roots in their subfamilies. Large tribes of Apioideae - Peucedaneae, Smyrnieae, Apieae and some smaller ones as Coriandreae are unnatural.


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