Internal Morphology and Phylogenetic Position of <i>Mycetomorpha vancouverensis</i> (Pancrustacea: Rhizocephala), an Enigmatic Parasitic Barnacle
<i>Mycetomorpha vancouverensis</i> is an enigmatic parasitic barnacle from the family Mycetomorphidae, known for its unclear phylogenetic position within Rhizocephala. Specimens of <i>M. vancouverensis</i> were collected from infected <i>Neocrangon communis</i> sh...
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| author | Aleksei Miroliubov Anastasia Lianguzova Darya Krupenko Liudmila Poliushkevich Semyon Novokreshchennykh Natalia Arbuzova Georgii Kremnev |
| author_facet | Aleksei Miroliubov Anastasia Lianguzova Darya Krupenko Liudmila Poliushkevich Semyon Novokreshchennykh Natalia Arbuzova Georgii Kremnev |
| author_sort | Aleksei Miroliubov |
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| description | <i>Mycetomorpha vancouverensis</i> is an enigmatic parasitic barnacle from the family Mycetomorphidae, known for its unclear phylogenetic position within Rhizocephala. Specimens of <i>M. vancouverensis</i> were collected from infected <i>Neocrangon communis</i> shrimps near the South Kuril Islands. Detailed morphological studies were conducted using histological techniques and scanning electron microscopy, and 18S rDNA sequences were used to resolve the phylogenetic position of <i>M. vancouverensis</i> within Rhizocephala. Morphological analysis revealed a complex externa structure with spermatogenic bodies and the presence of a main trunk in the interna. Some of the side branches of the interna invade the host’s nerve tissue and are modified into specialized goblet-shaped organs. These invasive rootlets are morphologically similar to the goblet-shaped organs in the family Peltogastridae. Molecular analysis confirmed that the Mycetomorphidae is a sister group to the Peltogastridae. At the same time, peltogastrids were recovered as polyphyletic. Our findings contribute to the understanding of the evolution of parasitic barnacles and highlight the unique adaptations of Mycetomorphidae within the broader context of Rhizocephala. |
| format | Article |
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| issn | 2079-7737 |
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| publishDate | 2024-11-01 |
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| spelling | doaj-art-da867efe385f4a1ba646d2d2a88ebd762025-08-20T02:01:06ZengMDPI AGBiology2079-77372024-11-01131296810.3390/biology13120968Internal Morphology and Phylogenetic Position of <i>Mycetomorpha vancouverensis</i> (Pancrustacea: Rhizocephala), an Enigmatic Parasitic BarnacleAleksei Miroliubov0Anastasia Lianguzova1Darya Krupenko2Liudmila Poliushkevich3Semyon Novokreshchennykh4Natalia Arbuzova5Georgii Kremnev6Laboratory of Parasitic Worms and Protists, Zoological Institute RAS, Universitetskaya Embankment 1, Saint-Petersburg 199034, RussiaLaboratory of Parasitic Worms and Protists, Zoological Institute RAS, Universitetskaya Embankment 1, Saint-Petersburg 199034, RussiaLaboratory of Parasitic Worms and Protists, Zoological Institute RAS, Universitetskaya Embankment 1, Saint-Petersburg 199034, RussiaDepartment of Embryology, Saint-Petersburg State University, Universitetskaya Emb., 7/9, Saint-Petersburg 199034, RussiaSakhalin Branch of the Russian Federal Research Institute of Fisheries and Oceanography, Komsomolskaya Street, 196, Yuzhno-Sakhalinsk 693023, RussiaLaboratory of Parasitic Worms and Protists, Zoological Institute RAS, Universitetskaya Embankment 1, Saint-Petersburg 199034, RussiaLaboratory of Parasitic Worms and Protists, Zoological Institute RAS, Universitetskaya Embankment 1, Saint-Petersburg 199034, Russia<i>Mycetomorpha vancouverensis</i> is an enigmatic parasitic barnacle from the family Mycetomorphidae, known for its unclear phylogenetic position within Rhizocephala. Specimens of <i>M. vancouverensis</i> were collected from infected <i>Neocrangon communis</i> shrimps near the South Kuril Islands. Detailed morphological studies were conducted using histological techniques and scanning electron microscopy, and 18S rDNA sequences were used to resolve the phylogenetic position of <i>M. vancouverensis</i> within Rhizocephala. Morphological analysis revealed a complex externa structure with spermatogenic bodies and the presence of a main trunk in the interna. Some of the side branches of the interna invade the host’s nerve tissue and are modified into specialized goblet-shaped organs. These invasive rootlets are morphologically similar to the goblet-shaped organs in the family Peltogastridae. Molecular analysis confirmed that the Mycetomorphidae is a sister group to the Peltogastridae. At the same time, peltogastrids were recovered as polyphyletic. Our findings contribute to the understanding of the evolution of parasitic barnacles and highlight the unique adaptations of Mycetomorphidae within the broader context of Rhizocephala.https://www.mdpi.com/2079-7737/13/12/968parasitic barnaclesMycetomorphidaephylogenyinternainvasive rootletshost–parasite interaction |
| spellingShingle | Aleksei Miroliubov Anastasia Lianguzova Darya Krupenko Liudmila Poliushkevich Semyon Novokreshchennykh Natalia Arbuzova Georgii Kremnev Internal Morphology and Phylogenetic Position of <i>Mycetomorpha vancouverensis</i> (Pancrustacea: Rhizocephala), an Enigmatic Parasitic Barnacle Biology parasitic barnacles Mycetomorphidae phylogeny interna invasive rootlets host–parasite interaction |
| title | Internal Morphology and Phylogenetic Position of <i>Mycetomorpha vancouverensis</i> (Pancrustacea: Rhizocephala), an Enigmatic Parasitic Barnacle |
| title_full | Internal Morphology and Phylogenetic Position of <i>Mycetomorpha vancouverensis</i> (Pancrustacea: Rhizocephala), an Enigmatic Parasitic Barnacle |
| title_fullStr | Internal Morphology and Phylogenetic Position of <i>Mycetomorpha vancouverensis</i> (Pancrustacea: Rhizocephala), an Enigmatic Parasitic Barnacle |
| title_full_unstemmed | Internal Morphology and Phylogenetic Position of <i>Mycetomorpha vancouverensis</i> (Pancrustacea: Rhizocephala), an Enigmatic Parasitic Barnacle |
| title_short | Internal Morphology and Phylogenetic Position of <i>Mycetomorpha vancouverensis</i> (Pancrustacea: Rhizocephala), an Enigmatic Parasitic Barnacle |
| title_sort | internal morphology and phylogenetic position of i mycetomorpha vancouverensis i pancrustacea rhizocephala an enigmatic parasitic barnacle |
| topic | parasitic barnacles Mycetomorphidae phylogeny interna invasive rootlets host–parasite interaction |
| url | https://www.mdpi.com/2079-7737/13/12/968 |
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