Description of a new species, Cryptocotyle lata sp. nov., and discussion of the phylogenetic relationships in Opisthorchioidea

The fish rotan, Perccottus glenii Dybowski, 1877 (Odontobutidae) is one of the most successful fish invaders during 20th and beginning of 21st century in European and Asian fresh waters. The diversity of its parasites within its invaded range was first reviewed by Sokolov, Reshetnikov, et al. (2014). The current paper analyzes new data from 2013 to 2019 on protistan and metazoan parasites of the non‐native populations of this fish. We used information from peer‐reviewed journals, difficult to access grey literature and our own recently obtained original data. 45 literature sources were included in the analysis. The newly‐available data originate from 95 water bodies of 13 river basins, isolated lakes in West Siberia, and Gulf of Finland, spanning a total of eight countries. A total of 132 recently detected parasite species/taxa are listed in this paper. Each species is presented with its location in/on the host, geographical localities, countries, and according literature sources. When available, number of examined fish as well as prevalence and range of intensity of infection are cited from the original source. This review enlarges contemporary knowledge on parasites of non‐native populations of the studied fish species up to 167 species/taxa. We highlight perspectives for further parasitological investigations of this invasive fish.

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“… e It is probably Cryptocotyle lata Tatonova et Besprozvannykh, 2019. Compare with results of Tatonova and Besprozvannykh (2019). …”

Section: Methodssupporting

confidence: 79%

A checklist of parasites of non‐native populations of the fish rotanPerccottus glenii(Odontobutidae): Communication II

Соколов

Решетников

2020

J Appl Ichthyol

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“…Few sequences are available for the Cryptocotyle Fig. 4 Phylogenetic trees based on cox1 mtDNA (left tree) and ITS rDNA (right tree) sequences using the ML method with 1000 bootstraps genus in databases (Blakeslee et al 2008;Borges et al 2015;Casalins et al 2020;Duflot et al 2021b;Tatonova & Besprozvannykh 2019). In this study, ITS and cox1 DNA sequences of C. lingua from Atlantic cod and whiting were added to the GenBank database.…”

Section: Discussionmentioning

confidence: 99%

“…Molecular identification to confirm the morphological identification of isolates is strongly recommended. Few sequences are available for the Cryptocotyle genus in databases (Blakeslee et al 2008 ; Borges et al 2015 ; Casalins et al 2020 ; Duflot et al 2021b ; Tatonova & Besprozvannykh 2019 ). In this study, ITS and cox1 DNA sequences of C. lingua from Atlantic cod and whiting were added to the GenBank database.…”

Section: Discussionmentioning

confidence: 99%

“…Moreover, morphological measurements are mainly available for the adult stage (Linton 1915;Ransom 1920) and descriptions of metacercariae stages are still scarce (Borges et al 2015;Linton 1915;Rees 1978). Over the past 15 years, molecular identification tools have been developed for Cryptocotyle (Blakeslee et al 2008;Borges et al 2015;Casalins et al 2020;Duflot et al 2021b;Gonchar 2020;Tatonova & Besprozvannykh 2019). In the present study, Cryptocotyle metacercariae sampled from naturally infected fish caught in the English Channel and the North Sea were morphologically described and molecularly characterised based on cox1 gene and ITS region sequences.…”

Section: Introductionmentioning

confidence: 99%

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Morphological and molecular identification of Cryptocotyle lingua metacercariae isolated from Atlantic cod (Gadus morhua) from Danish seas and whiting (Merlangius merlangus) from the English Channel

et al. 2021

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Trematode larvae (metacercariae) causing black spot disease occur frequently in gills, fins, skin and the superficial muscle layers of marine fish. Species within the genus Cryptocotyle Lühe, 1899 are frequently associated with this disease. Descriptions of the metacercarial stage are relatively limited and none has hitherto been reported from fish from the English Channel. The present study reports the morphological and molecular identifications of encysted black spot-inducing parasites from whiting (Merlangius merlangus) and Atlantic cod (Gadus morhua) caught respectively from the north coast of France (English Channel) and from Danish sea waters. Metacercariae were characterised morphologically based on microscopic observations and molecularly using Sanger sequencing of fragments of the mitochondrial cox1 gene and rDNA ITS region. Morphological data were compared with available data in the literature. Phylogenetic trees including reference sequences were built to confirm morphological and molecular identifications. This survey constitutes the first description of C. lingua metacercariae in the English Channel ecosystems.

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“…A total of 4 species, i.e., C. dominicana , C. jejuna , C. lingua and C. thapari , were described as the linguiform species [ 6 , 10 – 15 ]. As the pentagonal or ovoid form species, more than 9 ones, i.e., C. concava , C. cryptocotyloides , C. quinqueangularis , C. badamshini , C. delamurei , C. misgurni , C. gyrinicola , C. yamashitai and C. lata , were recorded in the literatures [ 5 , 8 , 10 , 15 – 24 ].…”

mentioning

confidence: 99%

Cryptocotyle lata (Trematoda: Heterophyidae) Adult from a Korean Raccoon Dog, Nyctereutes procyonoides koreensis

et al. 2021

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Total 513 heterophyid flukes were collected from a carcass of wild Korean raccoon dog, Nyctereutes procyonoides koreensis, in Korea. With morphological and molecular characteristics, the flukes were identified to Cryptocotyle lata. The adult C. lata were minute, transparent, pentagonal, 522 µm long by 425 µm wide. Ceca extended into post-testicular region. Ventrogenital sac elliptical, 79 µm by 87 µm with genital pore and ventral sucker. Two testes semielliptical and slightly lobed, located in the posterior region, right testis 173 µm by 155 µm, left testis 130 µm by 134 µm. In a phylogenetic tree, the fluke specimen of this study was grouped with C. lata divergent from Cryptocotyle lingua. We report here N. procyonoides koreensis first as a natural definitive host of C. lata.

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Description of a new species, Cryptocotyle lata sp. nov., and discussion of the phylogenetic relationships in Opisthorchioidea

Cited by 14 publications

References 23 publications

A checklist of parasites of non‐native populations of the fish rotanPerccottus glenii(Odontobutidae): Communication II

A checklist of parasites of non‐native populations of the fish rotanPerccottus glenii(Odontobutidae): Communication II

Morphological and molecular identification of Cryptocotyle lingua metacercariae isolated from Atlantic cod (Gadus morhua) from Danish seas and whiting (Merlangius merlangus) from the English Channel

Cryptocotyle lata (Trematoda: Heterophyidae) Adult from a Korean Raccoon Dog, Nyctereutes procyonoides koreensis

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