Characterization of Taenia madoquae and Taenia regis from carnivores in Kenya using genetic markers in nuclear and mitochondrial DNA, and their relationships with other selected taeniids

Zhang, Lu-Ping; Hu, Min; Jones, A.; Allsopp, B. A.; Beveridge, Ian; Schindler, Anne-Marie; Gasser, Robin B.

doi:10.1016/j.mcp.2007.05.003

Cited by 47 publications

(33 citation statements)

References 38 publications

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“…Although genetic divergence for 18S rDNA between our unique isolates and these Mesocestoides spp. was only about 1-3%, much higher divergence was noted for the mitochondrial markers, 9-10% for 12S rDNA and 11-12% for cox1, which is enough to consider that these isolates must be a distinct tapeworm species with a novel genetic signature [6,11,35,36]. On balance, taking into account both our morphological observations on adult worms and the genetic analysis, the samples in this clade are most likely to represent M. melesi.…”

Section: Discussionmentioning

confidence: 75%

Rodents as intermediate hosts of cestode parasites of mammalian carnivores and birds of prey in Poland, with the first data on the life-cycle of Mesocestoides melesi

et al. 2020

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Background: Rodents constitute an important part of the diet of many carnivore species. This predator-prey food chain is exploited by helminth parasites, such as cestodes, whose larval stages develop in rodents and then mature to the adult stage in predators. The main aim of our study was to use molecular techniques for identification of cestode species recovered from both intermediate and definitive hosts, with a particular focus on the genus Mesocestoides. Methods: Larval cestodes were obtained during our long-term studies on rodent helminth communities in the Mazury Lake District in the northeast Poland in 2000-2018. Cestode larvae/cysts were collected from body cavities or internal organs (e.g. liver) during autopsies. Adult tapeworms were derived from nine red foxes, three Eurasian badgers and one Eurasian lynx. PCR amplification, sequencing and phylogenetic analyses were conducted employing three genetic markers: 18S rDNA, mitochondrial (mt) 12S rDNA and the mt cytochrome c oxydase subunit 1 (cox1) gene fragment. Results: Altogether 19 Mesocestoides samples were analyzed, including 13 adult tapeworms from definitive hosts and six larval samples from 4 bank voles and 2 yellow-necked mice. Phylogenetic analyses revealed three well-supported trees of similar topology. In each case the Mesocestoides samples formed two separate clades. All isolates from foxes, the lynx isolate and two isolates from rodents grouped with Mesocestoides litteratus. Four isolates from rodents and all three isolates from Eurasian badgers were resolved in a separate clade, most similar to North American M. vogae (syn. M. corti). Examination of fixed, stained adult specimens from Eurasian badgers revealed consistency with the morphology of Mesocestoides melesi. Therefore, this clade is likely to represent M. melesi, a species first described in 1985 from the Eurasian badger Meles meles. Molecular analysis allowed also the identification of Taenia crassiceps, Hydatigera kamiyai and Cladotaenia globifera among larvae derived from rodents.

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Section: Discussionmentioning

confidence: 75%

Rodents as intermediate hosts of cestode parasites of mammalian carnivores and birds of prey in Poland, with the first data on the life-cycle of Mesocestoides melesi

et al. 2020

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“…Taenia cf. kotlani (Ganzorig et al 2003), Taenia laticollis (Lavikainen et al 2013, Nakao et al 2013), Taenia macrocystis (Diesing, 1850) (Okamoto et al 1995), Taenia omissa Lühe, 1910 (Lavikainen et al 2013, Gomez–Puerta et al, published only in GenBank), and Taenia regis (Zhang et al 2007). The present and previously published phylogenetic analyses show unambiguously that none of these can be conspecific with Taenia lynciscapreoli .…”

Section: Discussionmentioning

confidence: 99%

Description and life-cycle of Taenia lynciscapreoli sp. n. (Cestoda, Cyclophyllidea)

Haukisalmi¹,

Konyaev²,

Lavikainen³

et al. 2016

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A new species of tapeworm, Taenia lynciscapreoli sp. n. (Cestoda, Cyclophyllidea), is described from the Eurasian lynx (Lynx lynx), the main definitive host, and the roe deer (Capreolus capreolus and Capreolus pygargus), the main intermediate hosts, from Finland and Russia (Siberia and the Russian Far East). The new species was found once also in the wolf (Canis lupus) and the Eurasian elk/moose (Alces alces), representing accidental definitive and intermediate hosts, respectively. The conspecificity of adult specimens and metacestodes of Taenia lynciscapreoli sp. n. in various host species and regions, and their distinction from related species of Taenia, was confirmed by partial nucleotide sequences of the mitochondrial cytochrome c oxidase subunit 1 gene. Morphologically, Taenia lynciscapreoli sp. n. can be separated unambiguously from all other species of Taenia by the shape of its large rostellar hooks, particularly the characteristically short, wide and strongly curved blade. If the large rostellar hooks are missing, Taenia lynciscapreoli may be separated from related species by a combination of morphological features of mature proglottids. It is suggested that Taenia lynciscapreoli has been present in published materials concerning the tapeworms of Lynx lynx and Lynx pardinus in Europe, but has been misidentified as Taenia pisiformis (Bloch, 1780). Taenia lynciscapreoli sp. n. has not been found in lynx outside the range of roe deer, suggesting a transmission pathway based on a specific predator–prey relationship. The present study applies a novel, simple approach to compare qualitative interspecific differences in the shape of rostellar hooks.

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“…The mtDNA regions (cox1 and nad1) used have proved to be appropriate for the accurate differentiation of taeniid (both Taenia Linnaeus, 1758 and Echinococcus Rudolphi, 1801) species from each other and also for the determination of intraspecific variants (e.g. Okamoto et al, 1995;Gasser et al, 1999;Zhang et al, 2007;Lavikainen et al, 2008). Due to the large amount of previously published mtDNA sequence data, it was possible to compare the new species with 18 other Taenia spp.…”

Section: Methodsmentioning

confidence: 99%

Taenia arctos n. sp. (Cestoda: Cyclophyllidea: Taeniidae) from its definitive (brown bear Ursus arctos Linnaeus) and intermediate (moose/elk Alces spp.) hosts

Haukisalmi¹,

Lavikainen

Laaksonen

et al. 2011

Syst Parasitol

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Taenia arctos n. sp. (Cestoda: Cyclophyllidea: Taeniidae) is described from the brown bear Ursus arctos Linnaeus (definitive host) and moose/elk Alces spp. (intermediate hosts) from Finland (type-locality) and Alaska, USA. The independent status of the new species and the conspecificity of its adults and metacestodes have been recently confirmed by the mtDNA sequence data of Lavikainen et al. (2011; Parasitology International, 60, 289-295). Special reference is given to morphological differences between the new species and T. krabbei Moniez, 1879 (definitive hosts primarily canines for the latter), both of which use the moose/elk (Alces spp.) as intermediate hosts (the latter also uses Rangifer and perhaps other northern ruminants), and between the new species and T. ursina Linstow, 1893, both of which use the brown bear U. arctos as a definitive host. New morphological data are also provided for adults and cysticerci of T. krabbei. The analysis includes potentially useful morphometric features that have not been previously applied to Taenia spp.

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Characterization of Taenia madoquae and Taenia regis from carnivores in Kenya using genetic markers in nuclear and mitochondrial DNA, and their relationships with other selected taeniids

Cited by 47 publications

References 38 publications

Rodents as intermediate hosts of cestode parasites of mammalian carnivores and birds of prey in Poland, with the first data on the life-cycle of Mesocestoides melesi

Rodents as intermediate hosts of cestode parasites of mammalian carnivores and birds of prey in Poland, with the first data on the life-cycle of Mesocestoides melesi

Description and life-cycle of Taenia lynciscapreoli sp. n. (Cestoda, Cyclophyllidea)

Taenia arctos n. sp. (Cestoda: Cyclophyllidea: Taeniidae) from its definitive (brown bear Ursus arctos Linnaeus) and intermediate (moose/elk Alces spp.) hosts

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