Phylogenetic Evidence for the Lissorchiid Concept of the Genus <i>Anarhichotrema</i> Shimazu, 1973 (Trematoda, Digenea)
<i>Anarhichotrema</i> Shimazu, 1973 is a monotypic digenean genus, with the type- and only species, <i>Anarhichotrema ochotense</i> Shimazu, 1973, known to infect North Pacific fishes. This genus was originally described as a member of the Lissorchiidae (Monorchioidea) and la...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-02-01
|
| Series: | Diversity |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-2818/14/2/147 |
| _version_ | 1797481013740306432 |
|---|---|
| author | Sergey G. Sokolov Sergei V. Shchenkov Ilya I. Gordeev |
| author_facet | Sergey G. Sokolov Sergei V. Shchenkov Ilya I. Gordeev |
| author_sort | Sergey G. Sokolov |
| collection | DOAJ |
| description | <i>Anarhichotrema</i> Shimazu, 1973 is a monotypic digenean genus, with the type- and only species, <i>Anarhichotrema ochotense</i> Shimazu, 1973, known to infect North Pacific fishes. This genus was originally described as a member of the Lissorchiidae (Monorchioidea) and later moved to the Zoogonidae (Microphalloidea). Its exact phylogenetic position has remained unresolved due to the lack of molecular data. In this study, we isolated specimens of <i>A. ochotense</i> from the Bering wolffish, <i>Anarhichas orientalis</i> Pallas, 1814 caught in the Sea of Okhotsk, described them morphologically and performed a molecular phylogenetic analysis of their nuclear 18S and 28S rDNA regions. The specimens examined in our study generally corresponded to previous morphological descriptions of <i>A. ochotense</i> but were noticeably smaller, possibly due to the crowding effect. The phylogenetic analysis placed <i>Anarhichotrema</i> within the Lissorchiidae as a sister taxon to the group comprising freshwater lissorchiids. Thus, we restore <i>Anarhichotrema</i> to the Lissorchiidae, as originally assigned. |
| first_indexed | 2024-03-09T22:09:20Z |
| format | Article |
| id | doaj.art-56428de892d342179c9b608a6d0bf928 |
| institution | Directory Open Access Journal |
| issn | 1424-2818 |
| language | English |
| last_indexed | 2024-03-09T22:09:20Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Diversity |
| spelling | doaj.art-56428de892d342179c9b608a6d0bf9282023-11-23T19:35:37ZengMDPI AGDiversity1424-28182022-02-0114214710.3390/d14020147Phylogenetic Evidence for the Lissorchiid Concept of the Genus <i>Anarhichotrema</i> Shimazu, 1973 (Trematoda, Digenea)Sergey G. Sokolov0Sergei V. Shchenkov1Ilya I. Gordeev2A.N. Severtsov Institute of Ecology and Evolution, 119071 Moscow, RussiaDepartment of Invertebrate Zoology, St. Petersburg State University, 199034 St. Petersburg, RussiaRussian Federal Research Institute of Fisheries and Oceanography, 107140 Moscow, Russia<i>Anarhichotrema</i> Shimazu, 1973 is a monotypic digenean genus, with the type- and only species, <i>Anarhichotrema ochotense</i> Shimazu, 1973, known to infect North Pacific fishes. This genus was originally described as a member of the Lissorchiidae (Monorchioidea) and later moved to the Zoogonidae (Microphalloidea). Its exact phylogenetic position has remained unresolved due to the lack of molecular data. In this study, we isolated specimens of <i>A. ochotense</i> from the Bering wolffish, <i>Anarhichas orientalis</i> Pallas, 1814 caught in the Sea of Okhotsk, described them morphologically and performed a molecular phylogenetic analysis of their nuclear 18S and 28S rDNA regions. The specimens examined in our study generally corresponded to previous morphological descriptions of <i>A. ochotense</i> but were noticeably smaller, possibly due to the crowding effect. The phylogenetic analysis placed <i>Anarhichotrema</i> within the Lissorchiidae as a sister taxon to the group comprising freshwater lissorchiids. Thus, we restore <i>Anarhichotrema</i> to the Lissorchiidae, as originally assigned.https://www.mdpi.com/1424-2818/14/2/147Sea of Okhotsk<i>Anarhichas orientalis</i>LissorchiidaeMonorchioidea |
| spellingShingle | Sergey G. Sokolov Sergei V. Shchenkov Ilya I. Gordeev Phylogenetic Evidence for the Lissorchiid Concept of the Genus <i>Anarhichotrema</i> Shimazu, 1973 (Trematoda, Digenea) Diversity Sea of Okhotsk <i>Anarhichas orientalis</i> Lissorchiidae Monorchioidea |
| title | Phylogenetic Evidence for the Lissorchiid Concept of the Genus <i>Anarhichotrema</i> Shimazu, 1973 (Trematoda, Digenea) |
| title_full | Phylogenetic Evidence for the Lissorchiid Concept of the Genus <i>Anarhichotrema</i> Shimazu, 1973 (Trematoda, Digenea) |
| title_fullStr | Phylogenetic Evidence for the Lissorchiid Concept of the Genus <i>Anarhichotrema</i> Shimazu, 1973 (Trematoda, Digenea) |
| title_full_unstemmed | Phylogenetic Evidence for the Lissorchiid Concept of the Genus <i>Anarhichotrema</i> Shimazu, 1973 (Trematoda, Digenea) |
| title_short | Phylogenetic Evidence for the Lissorchiid Concept of the Genus <i>Anarhichotrema</i> Shimazu, 1973 (Trematoda, Digenea) |
| title_sort | phylogenetic evidence for the lissorchiid concept of the genus i anarhichotrema i shimazu 1973 trematoda digenea |
| topic | Sea of Okhotsk <i>Anarhichas orientalis</i> Lissorchiidae Monorchioidea |
| url | https://www.mdpi.com/1424-2818/14/2/147 |
| work_keys_str_mv | AT sergeygsokolov phylogeneticevidenceforthelissorchiidconceptofthegenusianarhichotremaishimazu1973trematodadigenea AT sergeivshchenkov phylogeneticevidenceforthelissorchiidconceptofthegenusianarhichotremaishimazu1973trematodadigenea AT ilyaigordeev phylogeneticevidenceforthelissorchiidconceptofthegenusianarhichotremaishimazu1973trematodadigenea |