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Phylogenetic relationships, infrageneric classification and species limits in the Neotropical genus Faramea (Coussareeae: Rubiaceae)
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- Löfstrand, Stefan D. (author)
- Stockholms universitet,Institutionen för ekologi, miljö och botanik,University of Vienna, Austria
- Taylor, Charlotte (author)
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- Razafimandimbison, Sylvain, 1964- (author)
- Naturhistoriska riksmuseet,Enheten för botanik
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- 2021-06-14
- 2021
- English.
- In: Botanical journal of the Linnean Society. - : Oxford University Press (OUP). - 0024-4074 .- 1095-8339. ; 197, s. 478-497
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Faramea is characterized by white or blue, tetramerous corollas and blue-black, fleshy fruits with a single, large pyrene. Both infrageneric relationships and species boundaries are poorly understood in the genus. This study represents the first broad-scale phylogenetic study of Faramea, with 80 of the c. 170 species sampled, 24 by two or more specimens. We aimed to include specimens representing the entire geographical, morphological and ecological ranges of the genus. Morphological characters historically utilized to delimit infrageneric sections in Faramea (e.g. bract and pyrene forms) were also evaluated. Only one of the currently accepted infrageneric sections was recovered as monophyletic (within a complex of species from other sections) and none of the morphological features traditionally utilized to determine infrageneric relationships in the genus was found to be uniquely diagnostic of a larger clade. Some Faramea lineages appear to be geographically isolated, with several clades containing solely specimens collected in the Atlantic Forest biomes. Of the 24 species represented by at least two specimens, 11 were supported as monophyletic, ten as non-monophyletic and three were not resolved as either monophyletic nor non-monophyletic. The results of the present study constitute a good basis for future studies of taxonomy, biogeography and ecology of Faramea.
Subject headings
- NATURVETENSKAP -- Biologi -- Biologisk systematik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biological Systematics (hsv//eng)
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Keyword
- Faramea section Faramea
- Faramea section Homaloclados
- Faramea section Hypochasma
- Faramea section Tetramerium
- morphology
- taxonomy
- Diversity of life
- Livets mångfald
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- ref (subject category)
- art (subject category)
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