Molecular data reveal cryptic speciation and host specificity in Toxascaris leonina (Nematoda: Ascarididae)
| Autor: | Miroslawa Dabert, Bogumiła Pilarczyk, W. Jarosz, Hanna Mizgajska-Wiktor, R. Fogt-Wyrwas, Izabela Rząd |
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| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
Species complex Felidae Genetic Speciation 030231 tropical medicine Zoology Foxes Host Specificity Toxascaris 03 medical and health sciences 0302 clinical medicine Dogs Phylogenetics Animals DNA Barcoding Taxonomic Clade Phylogeny Toxascariasis Toxascaris leonina Wolves General Veterinary biology Phylogenetic tree Host (biology) NADH Dehydrogenase General Medicine 030108 mycology & parasitology biology.organism_classification Ascarididae Cyclooxygenase 1 Parasitology DNA Intergenic |
| Zdroj: | Veterinary parasitology. 266 |
| ISSN: | 1873-2550 |
| Popis: | Toxascaris leonina (Ascarididae) is a cosmopolitan and polyxenical parasite whose host are canids and felids. To date, molecular phylogenetic studies included toxascarid representatives collected only from dogs or felids, therefore the intra-species differences between T. leonina collected from different host species has not been noticed. In this paper, we test the hypothesis of cryptic speciation in the T. leonina complex based on extended sequence data (ITS1, nad1, cox1) and individuals collected from dogs, felids and foxes. Phylogenetic analysis clustered T. leonina representatives into three well-supported clades depending on their host species, i.e. dogs and wolves, wild felids and foxes. Both genetic distances and the barcoding-gap analysis strongly support the species status of populations inhabiting different hosts. The results suggest additional genetic separation in felids. However, to determine the actual size of the Toxascaris complex, it would be necessary to analyse individuals collected from other canid and felid Toxascaris leonina host species. |
| Databáze: | OpenAIRE |
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