Annulonemertes (phylum Nemertea): when segments do not count

We estimated the phylogenetic position of the pseudosegmented ribbon worm Annulonemertes minusculus to test proposed evolutionary hypotheses to explain these body constrictions. The analysis is based on 18S rDNA sequences and shows that the species belongs to an apomorphic clade of hoplonemertean sp...

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Detalles Bibliográficos
Autores principales: Sundberg, Per, Strand, Malin
Formato: Texto
Lenguaje:English
Publicado: The Royal Society 2007
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1975765/
https://www.ncbi.nlm.nih.gov/pubmed/17686756
http://dx.doi.org/10.1098/rsbl.2007.0306
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author Sundberg, Per
Strand, Malin
author_facet Sundberg, Per
Strand, Malin
author_sort Sundberg, Per
collection PubMed
description We estimated the phylogenetic position of the pseudosegmented ribbon worm Annulonemertes minusculus to test proposed evolutionary hypotheses to explain these body constrictions. The analysis is based on 18S rDNA sequences and shows that the species belongs to an apomorphic clade of hoplonemertean species. The segmentation has no phylogenetic bearing as previously discussed, but is a derived character probably coupled to the species' interstitial habitat.
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spelling pubmed-19757652008-05-22 Annulonemertes (phylum Nemertea): when segments do not count Sundberg, Per Strand, Malin Biol Lett Research Article We estimated the phylogenetic position of the pseudosegmented ribbon worm Annulonemertes minusculus to test proposed evolutionary hypotheses to explain these body constrictions. The analysis is based on 18S rDNA sequences and shows that the species belongs to an apomorphic clade of hoplonemertean species. The segmentation has no phylogenetic bearing as previously discussed, but is a derived character probably coupled to the species' interstitial habitat. The Royal Society 2007-08-07 2007-10-22 /pmc/articles/PMC1975765/ /pubmed/17686756 http://dx.doi.org/10.1098/rsbl.2007.0306 Text en Copyright © 2007 The Royal Society http://creativecommons.org/licenses/by/2.5/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Sundberg, Per
Strand, Malin
Annulonemertes (phylum Nemertea): when segments do not count
title Annulonemertes (phylum Nemertea): when segments do not count
title_full Annulonemertes (phylum Nemertea): when segments do not count
title_fullStr Annulonemertes (phylum Nemertea): when segments do not count
title_full_unstemmed Annulonemertes (phylum Nemertea): when segments do not count
title_short Annulonemertes (phylum Nemertea): when segments do not count
title_sort annulonemertes (phylum nemertea): when segments do not count
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1975765/
https://www.ncbi.nlm.nih.gov/pubmed/17686756
http://dx.doi.org/10.1098/rsbl.2007.0306
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AT strandmalin annulonemertesphylumnemerteawhensegmentsdonotcount

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