Project 785: N. Guil, A. Jørgensen, G. Giribet, R. M. Kristensen. 2013. Congruence between molecular phylogeny and cuticular design in Echiniscoidea (Tardigrada, Heterotardigrada). Zoological Journal of the Linnean Society. 169 (4):713-736.
Specimen: Pseudechiniscus islandicus (unvouchered)

Abstract

Although morphological characters distinguishing echiniscid genera and species are well understood, the phylogenetic relationships of these taxa are not well established. We thus investigated the phylogeny of Echiniscidae, assessed the monophyly of Echiniscus, and explored the value of cuticular ornamentation as a phylogenetic character within Echiniscus. To do this, DNA was extracted from single individuals for multiple Echiniscus species, and 18S and 28S rRNA gene fragments were sequenced. Each specimen was photographed, and published in an open database prior to DNA extraction, to make morphological evidence available for future inquiries. An updated phylogeny of the class Heterotardigrada is provided, and conflict between the obtained molecular trees and the distribution of dorsal plates among echiniscid genera is highlighted. The monophyly of Echiniscus was corroborated by the data, with the recent genus Diploechiniscus inferred as its sister group, and Testechiniscus as the sister group of this assemblage. Three groups that closely correspond to specific types of cuticular design in Echiniscus have been found with a parsimony network constructed with 18S rRNA data. © 2013 The Linnean Society of London


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Article DOI: 10.1111/zoj.12090

Project DOI: 10.7934/P785, http://dx.doi.org/10.7934/P785
This project contains
  • 159 Media
  • 16 Taxa
  • 46 Specimens
Total size of project's media files: 809.06M

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MorphoBank Project 785
  • Creation Date:
    06 September 2012
  • Publication Date:
    20 October 2016
  • Project views: 53029

    Authors' Institutions

    • Copenhagen University

    • Harvard University

    • Museo Nacional de Ciencias Naturales de Madrid (CSIC)



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    Noemi Guil
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    Last logged in 10/20/16
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