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Phylogeny of benthi...
Phylogeny of benthic Phyllodocidae (Polychaeta) based on morphological and molecular data
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- Eklöf, Jenny, 1975 (author)
- Gothenburg University,Göteborgs universitet,Zoologiska institutionen,Department of Zoology
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- Pleijel, Fredrik, 1955 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för marin ekologi,Department of Marine Ecology
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- Sundberg, Per, 1950 (author)
- Gothenburg University,Göteborgs universitet,Zoologiska institutionen,Department of Zoology
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(creator_code:org_t)
- Elsevier BV, 2007
- 2007
- English.
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In: Molecular Phylogenetics and Evolution. - : Elsevier BV. - 1055-7903. ; 45:1, s. 261-271
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Abstract
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- A combined molecular (18S rDNA, 28S rDNA, 16S rDNA and COI) and morphological analysis of the benthic phyllodocids is presented for the first time. Nineteen phyllodocids and two outgroup taxa are assessed using parsimony, maximum likelihood and Bayesian analyses. We demonstrate high degrees in homoplasy in the traditionally used morphological phyllodocid characters, and show that all the three current subfamilies Phyllodocinae, Eteoninae and Notophyllinae are non-monophyletic. The genera Eulalia, Eumida, Protomystides, Pseudomystides, Pterocirrus and Sige form a well-supported group, as does Mystides and Nereiphylla. Another clade with strong support includes Eteone and Paranaitis, although with Eteone nested within a paraphyletic Paranaitis. The relationship between these two taxa indicate that the unusual arrangement of modified cirri on the first segments in Eteone is due to a fusion of segment 1 and 2 where the cirri of segment 1 have been reduced. Eulalia is non-monophyletic and should be split, minimally into two groups. Our results are ambiguous regarding the ancestral phyllodocid condition of absence–presence of median antenna or nuchal papilla and uniramous or biramous parapodia, but shows that the absence of cirri on segment 3 (previously an apomorphy, for e.g., Mystides, Pseudomystides and Hesionura) is maximally homoplastic.
Subject headings
- NATURVETENSKAP -- Biologi -- Zoologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Zoology (hsv//eng)
- 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
- Phyllodocidae
- Phylogeny
- 18S rDNA
- 28S rDNA
- 16S rDNA
- COI
- Morphology
Publication and Content Type
- ref (subject category)
- art (subject category)
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