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<p>The Echinostomatidae is one of the most numerous digenean families. Recent molecular studies indicate that it requires a complete revision. However, this is currently impossible because few echinostomatids have been molecularly characterised. During the parasitological survey of European coot <i>Fulica atra</i> taken in European and Asian parts of Russia, we found echinostomatid digeneans morphologically identified as <i>Echinostoma grande</i> Bashkirova, 1946, <i>Echinostoma</i> cf. <i>sarcinum</i> Dietz, 1909 and <i>Echinostoma bancrofti fulicae</i> Macko, 1968. Here we provide the descriptions and illustrations of these parasites and report the results of their phylogenetic analysis based on markers of nuclear (<i>28S rRNA</i> gene and ITS2 region) and mitochondrial (<i>cox1</i> and <i>nd1</i> genes) DNA. Our analyses indicated that only <i>E. grande</i> clustered with the true representatives of <i>Echinostoma</i> Rudolphi, 1809. <i>Echinostoma bancrofti fulicae</i> appeared as a member of the genus <i>Neomoliniella</i> Vainutis, Voronova, Andreev &amp; Shchelkanov, 2023 and is probably conspecific with its type species <i>Neomoliniella longicorpa</i> Vainutis, Voronova, Andreev &amp; Shchelkanov, 2023. The phylogenetic position of <i>Echinostoma</i> cf. <i>sarcinum</i> was equivocal but without support as a member of <i>Echinostoma</i> by all markers, which means that its generic attribution must be reconsidered, too.</p>

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Phylogeny and morphology of some Palearctic echinostomatid digeneans from rallid bird Fulica atra Linnaeus, 1758

  • 期刊论文

  • 发表日期：

    2025年9月8日

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  • Sergei A. Vlasenkov,
  • Mikhail Yu. Shchelkanov,
  • Sergey G. Sokolov

摘要

The Echinostomatidae is one of the most numerous digenean families. Recent molecular studies indicate that it requires a complete revision. However, this is currently impossible because few echinostomatids have been molecularly characterised. During the parasitological survey of European coot Fulica atra taken in European and Asian parts of Russia, we found echinostomatid digeneans morphologically identified as Echinostoma grande Bashkirova, 1946, Echinostoma cf. sarcinum Dietz, 1909 and Echinostoma bancrofti fulicae Macko, 1968. Here we provide the descriptions and illustrations of these parasites and report the results of their phylogenetic analysis based on markers of nuclear (28S rRNA gene and ITS2 region) and mitochondrial (cox1 and nd1 genes) DNA. Our analyses indicated that only E. grande clustered with the true representatives of Echinostoma Rudolphi, 1809. Echinostoma bancrofti fulicae appeared as a member of the genus Neomoliniella Vainutis, Voronova, Andreev & Shchelkanov, 2023 and is probably conspecific with its type species Neomoliniella longicorpa Vainutis, Voronova, Andreev & Shchelkanov, 2023. The phylogenetic position of Echinostoma cf. sarcinum was equivocal but without support as a member of Echinostoma by all markers, which means that its generic attribution must be reconsidered, too.