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Additional molecular evidence to support a sister taxon relationship between Heligmosomoidea and Molineoidea nematodes (Trichostrongylina)

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Abstract

Sequences of the first and second internal transcribed spacers of the ribosomal DNA were used to infer the evolutionary relationships of 19 species of parasitic nematode belonging to three superfamilies, Trichostrongyloidea, Molineoidea and Heligmosomoidea, within the sub-order Trichostrongylina. Analyses using maximum parsimony, maximum likelihood and neighbor-joining methods revealed strong statistical support for monophyly of each superfamily as defined on morphological criteria. Furthermore, in most analyses, there was also strong support for a sister taxon relationship between the Molineoidea and Heligmosomoidea, which supports the findings of a previous study based on partial LSU rDNA sequence data.

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Acknowledgements

The authors are grateful to Dr. F. Huby-Chilton (University of Melbourne, Australia) for her technical assistance, in particular for Heligmosomoides polygyrus bakeri, and Mrs. C. Bonillo and Mrs. J. Labourdière (Muséum national d’Histoire naturelle de Paris, France) for their technical advice. The authors also thank Dr. M. Erbaeva (Buryat Geological Institute, Ulan Ude, Buriatia) and Dr. V. Michel (Ecole Nationale Vétérinaire de Nantes, France) for their help in the field.

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Audebert, F., Chilton, N., Justine, JL. et al. Additional molecular evidence to support a sister taxon relationship between Heligmosomoidea and Molineoidea nematodes (Trichostrongylina). Parasitol Res 96, 343–346 (2005). https://doi.org/10.1007/s00436-005-1402-y

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  • DOI: https://doi.org/10.1007/s00436-005-1402-y

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