Phylogenetic Relationships within the Nematode Subfamily <i>Phascolostrongylinae</i> (Nematoda: <i>Strongyloidea</i>) from Australian Macropodid and Vombatid Marsupials
The strongyloid nematode subfamily Phascolostrongylinae comprises parasites of the large intestine and stomach of Australian macropods and wombats. In this study, we tested the phylogenetic relationships among the genera of the Phascolostrongylinae using the first and second internal transcribed spa...
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MDPI AG
2020-12-01
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| Series: | Microorganisms |
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| Online Access: | https://www.mdpi.com/2076-2607/9/1/9 |
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| author | Tanapan Sukee Ian Beveridge Ahmad Jawad Sabir Abdul Jabbar |
| author_facet | Tanapan Sukee Ian Beveridge Ahmad Jawad Sabir Abdul Jabbar |
| author_sort | Tanapan Sukee |
| collection | DOAJ |
| description | The strongyloid nematode subfamily Phascolostrongylinae comprises parasites of the large intestine and stomach of Australian macropods and wombats. In this study, we tested the phylogenetic relationships among the genera of the Phascolostrongylinae using the first and second internal transcribed spacers of the nuclear ribosomal DNA. Monophyly was encountered in the tribe Phascolostrongylinea comprising two genera, <i>Phascolostrongylus</i> and <i>Oesophagostomoides</i>, found exclusively in the large intestine of wombats. The tribe Hypodontinea, represented by the genera <i>Hypodontus</i> and <i>Macropicola</i> from the ileum and large intestine of macropods, was also found to be monophyletic. The tribe Macropostrongyloidinea, comprising the genera <i>Macropostrongyloides</i> and <i>Paramacropostrongylus</i>, was paraphyletic with the species occurring in the stomach grouping separately from those found in the large intestines of their hosts. However, <i>Macropostrongyloides</i><i>dissimilis</i> from the stomach of the swamp wallaby and <i>Paramacropostrongylus toraliformis</i> from the large intestine of the eastern grey kangaroo were distinct from their respective congeners. This study provided strong support for the generic composition of the tribe Phascolostrongylinea. The unexpected finding of <i>M. dissimilis</i> and <i>P. toraliformis</i> being distantly related to their respective congeners suggests a requirement for future taxonomic revision that may warrant separation of these species at the generic level. |
| first_indexed | 2024-03-10T13:51:21Z |
| format | Article |
| id | doaj.art-23c188388bdf4de9a2c055200d05c687 |
| institution | Directory Open Access Journal |
| issn | 2076-2607 |
| language | English |
| last_indexed | 2024-03-10T13:51:21Z |
| publishDate | 2020-12-01 |
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| record_format | Article |
| series | Microorganisms |
| spelling | doaj.art-23c188388bdf4de9a2c055200d05c6872023-11-21T02:04:39ZengMDPI AGMicroorganisms2076-26072020-12-0191910.3390/microorganisms9010009Phylogenetic Relationships within the Nematode Subfamily <i>Phascolostrongylinae</i> (Nematoda: <i>Strongyloidea</i>) from Australian Macropodid and Vombatid MarsupialsTanapan Sukee0Ian Beveridge1Ahmad Jawad Sabir2Abdul Jabbar3Department of Veterinary Biosciences, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Werribee, VIC 3030, AustraliaDepartment of Veterinary Biosciences, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Werribee, VIC 3030, AustraliaDepartment of Veterinary Biosciences, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Werribee, VIC 3030, AustraliaDepartment of Veterinary Biosciences, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Werribee, VIC 3030, AustraliaThe strongyloid nematode subfamily Phascolostrongylinae comprises parasites of the large intestine and stomach of Australian macropods and wombats. In this study, we tested the phylogenetic relationships among the genera of the Phascolostrongylinae using the first and second internal transcribed spacers of the nuclear ribosomal DNA. Monophyly was encountered in the tribe Phascolostrongylinea comprising two genera, <i>Phascolostrongylus</i> and <i>Oesophagostomoides</i>, found exclusively in the large intestine of wombats. The tribe Hypodontinea, represented by the genera <i>Hypodontus</i> and <i>Macropicola</i> from the ileum and large intestine of macropods, was also found to be monophyletic. The tribe Macropostrongyloidinea, comprising the genera <i>Macropostrongyloides</i> and <i>Paramacropostrongylus</i>, was paraphyletic with the species occurring in the stomach grouping separately from those found in the large intestines of their hosts. However, <i>Macropostrongyloides</i><i>dissimilis</i> from the stomach of the swamp wallaby and <i>Paramacropostrongylus toraliformis</i> from the large intestine of the eastern grey kangaroo were distinct from their respective congeners. This study provided strong support for the generic composition of the tribe Phascolostrongylinea. The unexpected finding of <i>M. dissimilis</i> and <i>P. toraliformis</i> being distantly related to their respective congeners suggests a requirement for future taxonomic revision that may warrant separation of these species at the generic level.https://www.mdpi.com/2076-2607/9/1/9PhascolostrongylinaeStrongyloideaparasitesmacropodswombatsinternal transcribed spacers |
| spellingShingle | Tanapan Sukee Ian Beveridge Ahmad Jawad Sabir Abdul Jabbar Phylogenetic Relationships within the Nematode Subfamily <i>Phascolostrongylinae</i> (Nematoda: <i>Strongyloidea</i>) from Australian Macropodid and Vombatid Marsupials Microorganisms Phascolostrongylinae Strongyloidea parasites macropods wombats internal transcribed spacers |
| title | Phylogenetic Relationships within the Nematode Subfamily <i>Phascolostrongylinae</i> (Nematoda: <i>Strongyloidea</i>) from Australian Macropodid and Vombatid Marsupials |
| title_full | Phylogenetic Relationships within the Nematode Subfamily <i>Phascolostrongylinae</i> (Nematoda: <i>Strongyloidea</i>) from Australian Macropodid and Vombatid Marsupials |
| title_fullStr | Phylogenetic Relationships within the Nematode Subfamily <i>Phascolostrongylinae</i> (Nematoda: <i>Strongyloidea</i>) from Australian Macropodid and Vombatid Marsupials |
| title_full_unstemmed | Phylogenetic Relationships within the Nematode Subfamily <i>Phascolostrongylinae</i> (Nematoda: <i>Strongyloidea</i>) from Australian Macropodid and Vombatid Marsupials |
| title_short | Phylogenetic Relationships within the Nematode Subfamily <i>Phascolostrongylinae</i> (Nematoda: <i>Strongyloidea</i>) from Australian Macropodid and Vombatid Marsupials |
| title_sort | phylogenetic relationships within the nematode subfamily i phascolostrongylinae i nematoda i strongyloidea i from australian macropodid and vombatid marsupials |
| topic | Phascolostrongylinae Strongyloidea parasites macropods wombats internal transcribed spacers |
| url | https://www.mdpi.com/2076-2607/9/1/9 |
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