A phylogeny of Apiaceae tribe Scandiceae: evidence from nuclear ribosomal DNA internal transcribed spacer sequences

Abstract

The evolutionary relationships among members of Apiaceae (Umbelliferae) tribe Scandiceae and representatives of all major lineages of Apioideae (including putatively allied Caucalideae) identified in earlier molecular studies were inferred from nucleotide sequence variation in the internal transcribed spacer regions (ITS1 and ITS2) of nuclear ribosomal DNA. In all, 134 accessions representing 18 genera commonly treated in Scandiceae were analyzed. Phylogenies estimated using maximum parsimony and distance methods were generally similar and suggest that: (1) Scandiceae form a well-supported clade, consisting of the genera Anthriscus, Athamanta (in part), Balansaea, Chaerophyllum, Conopodium, Geocaryum, Kozlovia, Krasnovia, Myrrhis, Myrrhoides, Neoconopodium, Osmorhiza, Scandix, Sphallerocarpus, and Tinguarra; (2) Athamanta is polyphyletic, with A. della-cellae allied with Daucus and A. macedonica placed close to Pimpinella; and (3) Rhabdosciadium and Grammosciadium find affinity with the Aegopodium group of umbellifers, whereas the placement of the monotypic Molopospermum cannot be inferred because of its high sequence divergence. The genus Bubon has been restored with two new combinations, B. macedonicum subsp. albanicum and B. macedonicum subsp. arachnoideum. Scandiceae arise within paraphyletic Caucalideae, the latter comprising two major lineages whose relationships to Scandiceae are not clear. Therefore, a broad treatment of Scandiceae is proposed, with subtribes Scandicinae, Daucinae, and Torilidinae (the latter two representing the Daucus and Torilis subgroups, respectively, of recent molecular systematic investigations).

Molecular evidence of polyphyletism in the plant genus Carum L. (Apiaceae)

“…Nevertheless, the taxonomic treatments used in floras and monographs are still often derived from that proposed by Drude (1898). Recent cladistic analyses of molecular data supported the hypothesis that many of Drude's tribal and subtribal taxa are unnatural (Downie and Katz-Downie, 1996;Downie et al, 1998;Kondo et al, 1996;Valiejo-Roman et al, 1998;Downie et al, 2000a;Downie et al, 2000b).…”

Taxonomic studies on the genus Rhabdosciadium (Apiaceae) with particular reference to Turkish species and their relationships with some closely related genera

“…Molecular study of Downie et al (2000) about the phylogeny of Apiaceae tribe Scandiaceae, which based on ITS 1 and ITS 2 sequence analysis, shows parallelism with ISSR study results. The study of Downie et al (2000) was composed of Myrrhoides, Chaerophyllum and Anthriscus in Daucus clade. Rhabdosciadium and Echinophora represented in Angelica and Aegopodium clade respectively.…”

“…They owe their distinctive flavor largely to diverse essential oil compounds in the fruits and leaves, which not only account for their culinary use but also account for their wide application in medicine. The family also encompasses wide spread weeds and toxic plants (Downie et al 2000).…”

First microsatellite markers forScaligeria lazicaBoiss. (Apiaceae) by next-generation sequencing: population structure and genetic diversity analysis

“…(Umbelliferae) includes 300-455 genera with 3000-3750 species and is one of the best known families of flowering plants. Members of this family are of great economic significance due to their culinary use (vegetables, condiments) and for their application in medicine [5,6]. The genus Scaligeria DC.…”