Developmental stages of Notocotylus magniovatus Yamaguti, 1934, Catatropis vietnamensis n. sp., Pseudocatatropis dvoryadkini n. sp., and phylogenetic relationships of Notocotylidae Lühe, 1909

Izrailskaia, A. V.; Besprozvannykh, V. V.; Tatonova, Yulia V.; Nguyen, Hung Manh; Ngo, Ha Duy

doi:10.1007/s00436-018-6182-2

Cited by 16 publications

(9 citation statements)

References 25 publications

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“…For the monostome, this cercaria was molecularly classified into a clade of the family Notocotylidae with high posterior probability support for a close relationship with C. vietnamensis, which has been reported to infect the intestinal caeca of the Mallard (Anas platyrhyncha) under experimental conditions and to utilize the freshwater thiarid snail M. tuberculata as an intermediate host (Izrailskaia et al, 2019). Depending on posterior probability and genetic divergence, it is possible that the monostome cercaria (10.2MBR2) has an identical sequence and is conspecific with the C. vietnamensis.…”

Section: Discussionmentioning

confidence: 99%

Cercarial trematodes in freshwater snails from Bangkok, Thailand: prevalence, morphological and molecular studies and human parasite perspective

2020

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We investigated the prevalence, morphological characters and molecular classifications of trematode cercariae in freshwater snails randomly collected from 59 sampling localities in Bangkok from May 2018 to March 2019. We used a crushing technique to observe the cercarial stage inside each snail body and amplified the internal transcribed spacer 2 regions of cercarial DNA using polymerase chain reaction methodology. The associated phylogenetic tree was reconstructed using Bayesian inference analyses. A total of 517 of 15 621 examined snails were infected with trematode cercariae, and the infected snails were classified into 11 species of seven families with a 3.31% overall prevalence of the infection. The Bithynia siamensis siamensis snail displayed the highest prevalence of infection (16.16%), whereas the Physella acuta snail exhibited the lowest prevalence (0.08%) of infection. Eight morphological types of cercariae were observed. The highest prevalence of infection was observed in mutabile cercaria (1.86%). Based on molecular investigations, the phylogram revealed eight cercaria types assigned to at least nine digenean trematode families, of which five belong to groups of human intestinal flukes. Although, with the exception of schistosome cercaria, trematode cercariae are not known to directly damage humans, understanding the general biology of trematode cercariae (including diversity, distribution, infection rates and host range) is important and necessary for the prevention and control of parasitic transmission that impacts aquatic cultivations, livestock farming and human health.

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Section: Discussionmentioning

confidence: 99%

Cercarial trematodes in freshwater snails from Bangkok, Thailand: prevalence, morphological and molecular studies and human parasite perspective

2020

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“…So, it is most obviously distinct from those species that use ‘pulmonate’ hosts (the Heterobranchia) as the first intermediate hosts. These species now get placed in the genus Pseudocatatropis by some researchers (Kanev et al ., 1994; Izrailskaia et al ., 2019). Others, however, do not dispute the diagnosis of the genus Catatropis and call the new species from the ‘pulmonate’ snails Chilina dombeiana (Bruguière, 1789) C. chilinae (Flores, Brugni, 2003).…”

Section: Discussionmentioning

confidence: 99%

“…In other Catatropis species where the first intermediate hosts are known, they belong to Caenogastropoda. Melanoides tuberculata (O. F. Müller, 1774) (Cerithioidea) hosts Catatropis vietnamensis Izrailskaia, Besprozvannykh, Tatonova et al ., 2019 (see Izrailskaia et al ., 2019). In other species, the first intermediate hosts belong to the order Littorinimorpha, the superfamily Truncatelloidea: Catatropis lagunae Bayssade-Dufour et al ., 1996 from Peringia ulvae (Pennant, 1777) (see Bayssade-Dufour et al ., 1996) and C. hatcheri from Heleobia (= Strobelitatea ) hatcheri (Pilsbry, 1911) (Flores and Brugni, 2006); and four species are from members of the family Bithyniidae: Catatropis indicus Srivastava, 1935 (Rohde and Onn, 1967; Koch, 2002), Catatropis morosovi Gubanov et al ., 1966 (Dvoryadkin, 1987), Catatropis hisikui Yamaguti, 1939 (Besprozvannykh, 2006) and C. verrucosa (Erkina, 1953; Kanev et al ., 1994).…”

Section: Discussionmentioning

confidence: 99%

“…Moreover, representatives of Notocotylus also appear in four different clades on the tree. Similar observations were also made in previous studies (Assis et al ., 2019; Gonchar et al ., 2019; Izrailskaia et al ., 2019). These are alarm bells for the fundamentals of notocotylid taxonomy, where the structure of ventral organs (ridges and papillae – their number, combination or absence) served to characterize genera.…”

Section: Discussionmentioning

confidence: 99%

“…Sexual adults described here belong to the genus Catatropis , according to this classic diagnosis. Several recent taxonomic papers have listed the valid species of this genus and summarized their features (Bayssade-Dufour et al ., 1996; Flores and Brugni, 2003, 2006; Schuster and Wibbelt, 2012; Izrailskaia et al ., 2019). We have assembled the available information on all valid Catatropis species, to the best of our knowledge (Supplementary Table S1), except for ‘ Catatropis verrucosa’ group that are dealt with separately (see next paragraph).…”

Section: Remarksmentioning

confidence: 99%

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It is marine: distinguishing a new species ofCatatropis(Digenea: Notocotylidae) from its freshwater twin

Gonchar

Галактионов

2020

Parasitology

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The morphology of sexual adults is the cornerstone of digenean systematics. In addition, life cycle data have always been significant. The integration of these approaches, supplemented with molecular data, has allowed us to detect a new species that many researchers may have previously seen, but not recognized. Sexual adults from common eiders that we found in northern European seas were extremely similar to other notocotylids, but the discovery of their intermediate host, a marine snail, revealed the true nature of this material. Here we describe sexual adults, rediae and cercariae of Catatropis onobae sp. nov. We discuss how ‘Catatropis verrucosa’ should be regarded, justify designation of the new species C. onobae for our material and explain why it can be considered a cryptic species. The phylogenetic position of C. onobae within Notocotylidae, along with other evidence, highlights the challenges for the taxonomy of the family, for which two major genera appear to be polyphyletic and life cycle data likely undervalued.

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Notocotylus chionis (Trematoda: Notocotylidae) and Notocotylus sp. from shorebirds in southern Patagonian wetlands of Argentina: morphological and molecular studies

et al. 2020

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Developmental stages of Notocotylus magniovatus Yamaguti, 1934, Catatropis vietnamensis n. sp., Pseudocatatropis dvoryadkini n. sp., and phylogenetic relationships of Notocotylidae Lühe, 1909

Cited by 16 publications

References 25 publications

Cercarial trematodes in freshwater snails from Bangkok, Thailand: prevalence, morphological and molecular studies and human parasite perspective

Cercarial trematodes in freshwater snails from Bangkok, Thailand: prevalence, morphological and molecular studies and human parasite perspective

It is marine: distinguishing a new species ofCatatropis(Digenea: Notocotylidae) from its freshwater twin

Notocotylus chionis (Trematoda: Notocotylidae) and Notocotylus sp. from shorebirds in southern Patagonian wetlands of Argentina: morphological and molecular studies

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