The interrelationships of all major groups of Platyhelminthes: phylogenetic evidence from morphology and molecules

  title={The interrelationships of all major groups of Platyhelminthes: phylogenetic evidence from morphology and molecules},
  author={D. Timothy J. Littlewood and Klaus Rohde and K. A. Clough},
  journal={Biological Journal of The Linnean Society},
We used a data matrix of 65 morphological characters from 25 ingroup and 6 outgroup taxa, and an alignment comprising complete 18S rDNA sequences from 82 species of parasitic and free-living Platyhelminthes and from 19 species of lower invertebrates to analyse phylogenetic relationships of various platyhelminth taxa. Of the 1358 unambiguously alignable molecular positions, 995 were variable and 757 were phylogenetically informative (parsimony criterion); complete 18S rDNA sequences ranged in… 

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