Two New Dactylogyridae (Trematoda: Monogenea) from the Golden Shiner

Seamster, Aaron

doi:10.2307/3273403

Cited by 8 publications

(8 citation statements)

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“…The other half of the worm was mounted on a slide and fixed with a mixture of glycerine and ammonium picrate (GAP) for species identification based on morphological characters (the sclerotized parts of the monogenean attachment organ (haptor), or the sclerotized parts of the reproductive organs—the copulatory organ and vaginal armaments). Dactylogyrus species were determined using available references [ 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 ].…”

Section: Methodsmentioning

confidence: 99%

Host-Specific Parasites Reveal the History and Biogeographical Contacts of Their Hosts: The Monogenea of Nearctic Cyprinoid Fishes

Šimková

Řehulková

Choudhury

et al. 2022

Biology

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Host-specific parasites exhibit close co-evolutionary associations with their hosts. In the case of fragmented/disjunct host distribution, host-specific parasites may reflect the biogeographical history of regions and/or the role played by contacts of hosts. The present study was focused on Dactylogyrus (Monogenea) species almost exclusively parasitizing cyprinoid fishes. We investigated the phylogenetic relationships between Dactylogyrus parasites of Nearctic cyprinoids (Leuciscidae) and Dactylogyrus parasites of Palearctic cyprinoids and used Dactylogyrus phylogeny to explore the biogeography of fish hosts in Europe and North America. Phylogenetic analyses revealed that two Nearctic clades of Dactylogyrus spp. have different origins. Historical contacts between European and North American leuciscids were accompanied by the host switching of Dactylogyrus species. In the Nearctic region, Dactylogyrus parasites also colonized non-leuciscid fishes. Dactylogyrus spp. of three Nearctic leuciscid clades were included in the phylogenetic reconstruction; only Dactylogyrus spp. of the Plagopterinae had a common origin. Dactylogyrus species did not reflect the phylogenetic relationships among leuciscid clades, suggesting that past co-diversification was overshadowed by colonization events mediated by paleogeographic and climatological changes and extensive drainage reorganization. Host-specific monogeneans serve as a supplementary tool to reveal the historical biogeographical contacts between freshwater fish from the North America and Europe and also contemporary contacts of leuciscids in North America.

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Section: Methodsmentioning

confidence: 99%

Host-Specific Parasites Reveal the History and Biogeographical Contacts of Their Hosts: The Monogenea of Nearctic Cyprinoid Fishes

Šimková

Řehulková

Choudhury

et al. 2022

Biology

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“…Previous records : Notemigonus crysoleucas : Oklahoma [ 78 ], Virginia [ 33 ], Texas [ 60 ], Alabama [ 72 ], Ontario [ 22 , 24 ], New Brunswick [ 21 ].…”

Section: Resultsmentioning

confidence: 99%

“…This species is easily distinguished from its North American congeners by its unique MCO, in which the accessory piece has the shape of the letter T with its stem twisted around the distal half of the copulatory tube. However, the original drawings by Seamster [ 78 ] are highly diagrammatic (probably drawn free hand instead of from a camera lucida), and, unfortunately, the type specimens probably do not exist. Although Seamster [ 78 ] indicates that cotypes were deposited in the University of Notre Dame type collection, Indiana, there is no record of them in the collection (Barbara Hellenthal, personal communication).…”

Section: Resultsmentioning

confidence: 99%

“…However, the original drawings by Seamster [ 78 ] are highly diagrammatic (probably drawn free hand instead of from a camera lucida), and, unfortunately, the type specimens probably do not exist. Although Seamster [ 78 ] indicates that cotypes were deposited in the University of Notre Dame type collection, Indiana, there is no record of them in the collection (Barbara Hellenthal, personal communication). Present respective measurements of the haptoral structures and the MCO generally correspond to those in the original description, but there are discrepancies concerning the presence/absence of the ventral bar between the current specimens and the original account of D. parvicirrus .…”

Section: Resultsmentioning

confidence: 99%

“…Present respective measurements of the haptoral structures and the MCO generally correspond to those in the original description, but there are discrepancies concerning the presence/absence of the ventral bar between the current specimens and the original account of D. parvicirrus . In his description based on twelve specimens, Seamster [ 78 ] stated that the ventral bar was not observed; also, Hargis [ 33 ] did not depict the ventral bar in his drawings from specimens collected in Virginia. However, in all of the seven specimens available to us, the ventral bar was clearly visible (see Fig.…”

Section: Resultsmentioning

confidence: 99%

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Nearctic Dactylogyrus species (Platyhelminthes, Monogenea) parasitizing cypriniform fishes in the context of morphology and phylogeny, with descriptions of seven new species

Řehulková,

Seifertová,

Francová

et al. 2023

Parasite

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Ribosomal DNA sequences are currently available for 32 morphologically recognized species of Dactylogyrus parasitizing Nearctic cypriniforms, but only 16 of them are assigned to nominal species. Herein, morphological data on 28 of the 32 species are provided, together with comments on their phylogenetic relationships in the context of the morphology of taxonomically important structures. Seven new species of Dactylogyrus are described from five species of leuciscids and one species of catostomids, as follows: D. aduncus n. sp. from Campostoma spadiceum, D. cloutmani n. sp. from Luxilus chrysocephalus isolepis, D. cornifrons n. sp. from Cyprinella venusta, D. fimbratus n. sp. from Rhinichthys cataractae, D. mcallisteri n. sp. from Semotilus atromaculatus, and D. chieni n. sp. and D. haneki n. sp. from Hypentelium nigricans. Four previously described species of Dactylogyrus, D. atromaculatus from S. atromaculatus, D. eos from C. neogaeus, D. parvicirrus from Notemigonus crysoleucas and D. perlus from L. c. isolepis, are redescribed and/or figured. As for the remaining 17 species, only the male copulatory organs (MCOs) taken from the respective hologenophores are illustrated. On the basis of phylogenetic analyses, two main clades of Nearctic Dactylogyrus were recognized and supported by the different morphology of the MCO. The first one included 22 strictly Nearctic species sharing the same MCO type with Dactylogyrus spp. parasitizing cyprinids likely of Asian origin. The second clade encompassed Dactylogyrus spp. with diverse MCO morphology and was placed in the sister position to Dactylogyrus spp. parasitizing European leuciscids and North-West African cyprinids.

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A catalogue of the nominal species of the monogenean genus Dactylogyrus Diesing, 1850 and their host genera

1996

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Dactylogyrus is the largest helminth genus, with more than 900 nominal species, and is consequently in a state of considerable confusion. In an attempt to consolidate our knowledge of this large taxon, this work surveys the nominal species and catalogues them and their hosts (to the generic level) in the form of a species list which is cross-referenced to host-parasite list. A reference list to the authorities for the taxa is included.

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Two New Dactylogyridae (Trematoda: Monogenea) from the Golden Shiner

Cited by 8 publications

References 2 publications

Host-Specific Parasites Reveal the History and Biogeographical Contacts of Their Hosts: The Monogenea of Nearctic Cyprinoid Fishes

Host-Specific Parasites Reveal the History and Biogeographical Contacts of Their Hosts: The Monogenea of Nearctic Cyprinoid Fishes

Nearctic Dactylogyrus species (Platyhelminthes, Monogenea) parasitizing cypriniform fishes in the context of morphology and phylogeny, with descriptions of seven new species

A catalogue of the nominal species of the monogenean genus Dactylogyrus Diesing, 1850 and their host genera

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