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Articulating "Archiannelids": Phylogenomics and Annelid Relationships, with Emphasis on Meiofaunal Taxa.
Andrade, Sónia C S; Novo, Marta; Kawauchi, Gisele Y; Worsaae, Katrine; Pleijel, Fredrik; Giribet, Gonzalo; Rouse, Greg W.
Afiliação
  • Andrade SC; Museum of Comparative Zoology, Department of Organismic and Evolutionary Biology, Harvard University Departamento de Genética e Biologia Evolutiva, Universidade de São Paulo, São Paulo, SP, Brazil.
  • Novo M; Museum of Comparative Zoology, Department of Organismic and Evolutionary Biology, Harvard University Cardiff School of Biosciences, Cardiff University, BIOSI 1, Cardiff, United Kingdom.
  • Kawauchi GY; Museum of Comparative Zoology, Department of Organismic and Evolutionary Biology, Harvard University Centro de Biologia Marinha, CEBIMar, University of São Paulo, São Sebastião, SP, Brazil.
  • Worsaae K; Marine Biological Section, Department of Biology, University of Copenhagen, Copenhagen, Denmark.
  • Pleijel F; Department of Biological and Environmental Sciences - Tjärnö, University of Gothenburg, Strömstad, Sweden.
  • Giribet G; Museum of Comparative Zoology, Department of Organismic and Evolutionary Biology, Harvard University.
  • Rouse GW; Scripps Institution of Oceanography, University of California San Diego grouse@ucsd.edu.
Mol Biol Evol ; 32(11): 2860-75, 2015 Nov.
Article em En | MEDLINE | ID: mdl-26205969
Annelid disparity has resulted in morphological-based classifications that disagree with phylogenies based on Sanger sequencing and phylogenomic analyses. However, the data used for the latter studies came from various sources and technologies, involved poorly occupied matrices and lacked key lineages. Here, we generated a new Illumina-based data set to address annelid relationships from a fresh perspective, independent from previously generated data and with nearly fully occupied matrices. Our sampling reflects the span of annelid diversity, including two symbiotic annelid groups (Myzostomida and Spinther) and five meiofaunal groups once referred to as part of Archiannelida (three from Protodrilida, plus Dinophilus and Polygordius). As well as the placement of these unusual annelids, we sought to address the overall phylogeny of Annelida, and provide a new perspective for naming of major clades. Our results largely corroborate the phylogenomic results of Weigert et al. (2014; Illuminating the base of the annelid tree using transcriptomics. Mol Biol Evol. 31:1391-1401), with "Magelona + Owenia" and Chaetopteridae forming a grade with respect to all other annelids. Echiura and Sipuncula are supported as being annelid groups, with Sipuncula closest to amphinomids as sister group to Sedentaria and Errantia. We recovered the three Protodrilida terminals as sister clade to Phyllodocida and Eunicida (=clade Aciculata). We therefore place Protodrilida as part of Errantia. Polygordius was found to be sister group to the scaleworm terminal and the possibility that it is a simplified scaleworm clade, as has been shown for the former family Pisionidae, is discussed. Our results were equivocal with respect to Dinophilus, Myzostomida, and Spinther possibly owing to confounding long-branch effects.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Anelídeos Tipo de estudo: Incidence_studies Limite: Animals Idioma: En Revista: Mol Biol Evol Assunto da revista: BIOLOGIA MOLECULAR Ano de publicação: 2015 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Anelídeos Tipo de estudo: Incidence_studies Limite: Animals Idioma: En Revista: Mol Biol Evol Assunto da revista: BIOLOGIA MOLECULAR Ano de publicação: 2015 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos