Comparative Landmark Analysis of Various Oxyuridae Parasites of Primates and Rodents

Patterns of Variation Seen in the Caudal Bursa of Males
  • J. P. Hugot
  • M. Baylac
Chapter
Part of the NATO ASI Series book series (NSSA, volume 284)

Abstract

The patterns of shape variation in the caudal bursa of males of various species of pinworms were analyzed using geometric morphometric methods. Thirty-four of a group of 45 oxyurid species that are primarily parasitic on primates, and are considered to constitute a monophyletic group, were studied. This study was designed to evaluate (1) the application of geometric morphometric techniques to cuticular characters in soft-bodied invertebrates; (2) the current classification for the group; (3) Cameron’s (1929) hypothesis of close coevolution between Primates and their oxyurid parasites; and (4) Chabaud and Petter’s (1961) hypothesis that male genital papillae of phasmidian nematodes provide useful characters for systematic and phylogenetic studies. Analyses identified the same groups and subgroups that had been described previously using different morphological characters. The host specificity of different parasites was found to be consistent with Cameron’s hypothesis. The thin-plate spline analyses revealed shape changes of the genital papillae that are consistent with the evolutionary transformations proposed by Chabaud and Petter, suggesting that geometric methods might be useful for identifying characters for phylogenetic reconstruction.

Keywords

Median Axis Centroid Size Canonical Discriminant Analysis Genital Plate Relative Warp 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1996

Authors and Affiliations

  • J. P. Hugot
    • 1
  • M. Baylac
    • 2
  1. 1.Muséum National d’Histoire Naturelle Laboratoire de Biologie Parasitaire, Protistologie et HelminthologieAssocié au Centre National Recherche Scientifique (URA 114)Paris cedex 05France
  2. 2.Laboratoire d’EntomologieMuséum National d’Histoire NaturelleParis cedex 05France

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