18S rRNA data indicate that Aschelminthes are polyphyletic in origin and consist of at least three distinct clades

B. Winnepenninckx, T. Backeljau, L. Y. Mackey, J. M. Brooks, R. De Wachter, S. Kumar, J. R. Garey

Research output: Contribution to journalArticle

144 Scopus citations

Abstract

The Aschelminthes is a collection of at least eight animal phyla, historically grouped together because the absence of a true body cavity was perceived as a pseudocoelom. Analyses of 18S rRNA sequences from six Aschelminth phyla (including four previously unpublished sequences) support polyphyly for the Aschelminthes. At least three distinct groups of Aschelminthes were detected: the Priapulida among the protostomes, the Rotifera-Acanthocephala as a sister group to the protostomes, and the Nematoda as a basal group to the triploblastic Eumetazoa.

Original languageEnglish (US)
Pages (from-to)1132-1137
Number of pages6
JournalMolecular biology and evolution
Volume12
Issue number6
StatePublished - Jan 1 1995

Keywords

  • 18S ribosomal RNA
  • Aschelminthes
  • Metazoa
  • molecular
  • phylogeny
  • pseudocoelom

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Molecular Biology
  • Genetics

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    Winnepenninckx, B., Backeljau, T., Mackey, L. Y., Brooks, J. M., De Wachter, R., Kumar, S., & Garey, J. R. (1995). 18S rRNA data indicate that Aschelminthes are polyphyletic in origin and consist of at least three distinct clades. Molecular biology and evolution, 12(6), 1132-1137.