Hiding in the swamp: new capillariid nematode parasitizing New Zealand brown mudfish
| Autor: | Richard S. A. White, Fátima Jorge, Rachel A. Paterson |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Male Brown mudfish Nematoda Zoology Fresh Water Host-Parasite Interactions 03 medical and health sciences Fish Diseases Neochanna Phylogenetics Swim bladder Animals Nematode Infections Ecosystem Phylogeny biology Phylogenetic tree Air Sacs Fishes High-Throughput Nucleotide Sequencing General Medicine 030108 mycology & parasitology biology.organism_classification Biological Evolution Nematode Taxon Wetlands Animal Science and Zoology Parasitology Taxonomy (biology) New Zealand |
| Zdroj: | Journal of helminthology. 92(3) |
| ISSN: | 1475-2697 0022-149X |
| Popis: | The extent of New Zealand's freshwater fish-parasite diversity has yet to be fully revealed, with host–parasite relationships still to be described from nearly half the known fish community. While advances in the number of fish species examined and parasite taxa described are being made, some parasite groups, such as nematodes, remain poorly understood. In the present study we combined morphological and molecular analyses to characterize a capillariid nematode found infecting the swim bladder of the brown mudfish Neochanna apoda, an endemic New Zealand fish from peat-swamp-forests. Morphologically, the studied nematodes are distinct from other Capillariinae taxa by the features of the male posterior end, namely the shape of the bursa lobes, and shape of spicule distal end. Male specimens were classified into three different types according to differences in the shape of the bursa lobes at the posterior end, but only one was successfully characterized molecularly. Molecular analysis indicated that the studied capillariid is distinct from other genera. However, inferences about the phylogenetic position of the capillariid reported here will remain uncertain, due to the limited number of Capillariinae taxa characterized molecularly. The discovery of this new capillariid, which atypically infects the swim bladder of its host, which itself inhabits a very unique ecosystem, underlines the very interesting evolutionary history of this parasite, which for now will remain unresolved. |
| Databáze: | OpenAIRE |
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