A phylogeny of the flowering plant family Apiaceae based on chloroplast DNA rpl16 and rpoC1 intron sequences: towards a suprageneric classification of subfamily Apioideae

Abstract

The higher level relationships within Apiaceae (Umbelliferae) subfamily Apioideae are controversial, with no widely acceptable modern classification available. Comparative sequencing of the intron in chloroplast ribosomal protein gene rpl16 was carried out in order to examine evolutionary relationships among 119 species (99 genera) of subfamily Apioideae and 28 species from Apiaceae subfamilies Saniculoideae and Hydrocotyloideae, and putatively allied families Araliaceae and Pittosporaceae. Phylogenetic analyses of these intron sequences alone, or in conjunction with plastid rpoC1 intron sequences for a subset of the taxa, using maximum parsimony and neighbor-joining methods, reveal a pattern of relationships within Apioideae consistent with previously published chloroplast DNA and nuclear ribosomal DNA ITS based phylogenies. Based on consensus of relationship, seven major lineages within the subfamily are recognized at the tribal level. These are referred to as tribes Heteromorpheae M.

The Relationship Between Global and Regional Distribution Diminishes Among Phylogenetically Basal Species

“…We considered four parts of the phylogeny for which branch lengths were readily available. We found that clade rank was always highly correlated to the total length of the branches connecting a taxon to the root of the respective part of the phylogeny (dicot families [Savolainen et al 2000]: n ϭ 96, r ϭ 0.626, P Ͻ 0.0001; Poaceae species [Catalan et al 1997]: n ϭ 20, r ϭ 0.792, P Ͻ 0.0001; Rosaceae species [Morgan et al 1994]: n ϭ 15, r ϭ 0.671, P ϭ 0.006; Apiaceae species [Downie et al 2000]: n ϭ 25, r ϭ 0.563, P ϭ 0.0034). Hence, the bias of clade rank was relatively small.…”

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).…”

“…The conflicts in taxonomic treatment of Apiaceae between traditional treatments (Drude, 1898 and derived treatments) and molecular data has been quite common in the recent literature. For instance Downie et al (2000b), showed that of 16 genera of which more than one species was examined, 11 were not monophyletic. Therefore the polyphyly of Carum L. is a new finding but not particularly surprising in the context of most recent phylogenetic analyses of the Apiaceae.…”

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.…”