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Phylogenetic relati...
Phylogenetic relationships and new tribal delimitations in subfamily Ixoroideae (Rubiaceae)
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- Kainulainen, Kent (author)
- Stockholms universitet,Institutionen för ekologi, miljö och botanik,Bergianska botaniska trädgården (tills m Kungl. Vetenskapsakademien)
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- Razafimandimbison, Sylvain G. (author)
- Stockholms universitet,Bergianska botaniska trädgården (tills m Kungl. Vetenskapsakademien),Institutionen för ekologi, miljö och botanik
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- Bremer, Birgitta (author)
- Stockholms universitet,Institutionen för ekologi, miljö och botanik,Bergianska botaniska trädgården (tills m Kungl. Vetenskapsakademien)
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(creator_code:org_t)
- 2013-04-25
- 2013
- English.
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In: Botanical journal of the Linnean Society. - : Oxford University Press (OUP). - 0024-4074 .- 1095-8339. ; 173:3, s. 387-406
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Abstract
Subject headings
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- Subfamily Ixoroideae is one of three major lineages in Rubiaceae, with approximately 4000 species. Previous molecular phylogenetic studies have indicated that many genera and tribes previously placed in other subfamilies are better considered as part of Ixoroideae. However, the internal resolution and clade support have generally been low, and several genera found to be nested in the subfamily do not appear to be associated with any described tribe. In order to resolve the phylogeny and assess the tribal delimitations in the expanded Ixoroideae, phylogenetic reconstructions were performed using Bayesian and parsimony analyses of six plastid DNA regions and a broad sampling of genera from all tribes of the subfamily. In the inferred phylogenetic hypotheses, the tribal relationships were mostly well supported, with Ixoroideae consisting of the Coffeeae and the Vanguerieae alliances as sister groups and a grade comprising Condamineeae, Henriquezieae, Posoquerieae, Retiniphylleae, Sipaneeae and the genus Steenisia. A revised tribal classification, including the description of five new tribes, Airospermeae, Augusteae, Scyphiphoreae, Steenisieae and Trailliaedoxeae, is provided.
Subject headings
- NATURVETENSKAP -- Biologi -- Botanik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Botany (hsv//eng)
Keyword
- Airospermeae
- Augusteae
- molecular phylogenetics
- Scyphiphoreae
- Steenisieae
- systematics
- Trailliaedoxeae
Publication and Content Type
- ref (subject category)
- art (subject category)
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