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Phylogeny of the Prolecithophora (Platyhelminthes) Inferred from 18S rDNA Sequences

Authors
Journal
Cladistics
0748-3007
Publisher
Wiley Blackwell (Blackwell Publishing)
Publication Date
Volume
15
Issue
2
Identifiers
DOI: 10.1006/clad.1999.0095
Keywords
  • Neodermata
  • Parsimony
  • Jack-Knife
  • Boot-Strap
  • Ssu.

Abstract

Abstract Complete nuclear 18S rDNA sequences from 14 species of the Prolecithophora were obtained and used, in combination with literature data, to generate the first parsimony-based hypothesis of the phylogeny of the order Prolecithophora (Platyhelminthes). Bootstrap, parsimony jack-knife, and Bremer support values were computed and compared. The monophyly of the Prolecithophora sensu stricto and the family Plagiostomidae is strongly supported. The taxa Separata, Combinata, and Plagiostomum are shown to be nonmonophyletic. Cylindrostomidae and Ulianinidae are transferred to Pseudostomidae. The Urastomidae is not part of the Prolecithophora.

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