Phylogenetic relationships of species of the oesophageal parasitic nematode genera Cyclostrongylus and Spirostrongylus (Strongyloidea: Chabertiidae: Cloacininae) with their wallaby hosts (Marsupialia: Macropodidae). Issue 2 (April 2016)

• Record Type: Journal Article
• Authors: Chilton, Neil B.; Huby-Chilton, Florence; Koehler, Anson V.; Gasser, Robin B.; Beveridge, Ian
• Is Part Of: Molecular and cellular probes. Volume 30:Issue 2(2016)
• Page Start: 93
• Page End: 99
• Publication Date: 2016-04
• Subjects: Cyclostrongylus -- Spirostrongylus -- Chabertiidae -- Macropus -- Wallabia -- Macropodidae -- Nuclear ribosomal DNA -- Phylogeny; Molecular probes -- Diagnostic use -- Periodicals; Pathology, Cellular -- Technique -- Periodicals; Cell Biology -- Periodicals; Molecular Biology -- Periodicals; Sondes moléculaires -- Utilisation diagnostique -- Périodiques; Cytopathologie -- Technique -- Périodiques; 572
• DOI: 10.1016/j.mcp.2016.01.004
• Languages: English
• ISSNs: 0890-8508

Abstract

Abstract: A phylogeny for seven species of Cyclostrongylus and the monotypic genus Spirostrongylus (Nematoda: Chabertiidae), all highly host specific parasites of the oesophagi of wallabies (Marsupialia: Macropodidae), was constructed using sequence data for the first and second internal transcribed spacers (ITS-1 and ITS-2) of the nuclear ribosomal DNA. There was no evidence for co-speciation, or for the sympatric or synxenic speciation of Cyclostrongylus alatus and Cyclostrongylus perplexus, both of which are parasites of Macropus rufogriseus . Rather, host switching, correlating with geographical distributions, appeared to provide some explanation of the pattern of speciation observed. Highlights: Phylogeny of oesophageal parasitic nematodes examined using ITS rDNA sequence data. There was no evidence of host-parasite co-speciation. Host switching and geographical distributions may explain the parasite phylogeny.