Taxonomy and systematics of 2 new species of myxozoans (Cnidaria: Myxobolidae) parasitizing the gills of Iheringichthys labrosus (Teleostei: Pimelodidae) from southeastern Brazil
Abstract During a survey of myxozoan infections in fishes from the Pardo River, Paranapanema River basin, São Paulo State, Brazil, 2 new species – Henneguya avareensis n. sp. and Myxobolus iheringichthys n. sp. – were discovered parasitizing the gills of Iheringichthys labrosus, a commercially impo...
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Cambridge University Press
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| Series: | Parasitology |
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| author | Diego Henrique Mirandola Dias Vieira Maria João Santos Sónia Rocha Luis Filipe Rangel Rodrigo Bravin Narciso Reinaldo José da Silva |
| author_facet | Diego Henrique Mirandola Dias Vieira Maria João Santos Sónia Rocha Luis Filipe Rangel Rodrigo Bravin Narciso Reinaldo José da Silva |
| author_sort | Diego Henrique Mirandola Dias Vieira |
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During a survey of myxozoan infections in fishes from the Pardo River, Paranapanema River basin, São Paulo State, Brazil, 2 new species – Henneguya avareensis n. sp. and Myxobolus iheringichthys n. sp. – were discovered parasitizing the gills of Iheringichthys labrosus, a commercially important pimelodid fish in South America. Species descriptions were based on the morphology of myxospores and partial sequences of the small subunit ribosomal DNA. Phylogenetic analysis revealed host-related clustering, with the new species clustering together with other myxobolids that parasitize Pimelodidae (Siluriformes). Myxobolus iheringichthys n. sp. clustered specifically with Myxobolus cordeiroi, together forming yet another lineage of myxobolids infecting Pimelodidae fishes. Our analysis underscores the importance of monitoring the presence of these parasites in stocks of I. labrosus to assess potential pathologies they may cause. This is the first report of myxozoans parasitizing the gills of this Neotropical catfish.
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| format | Article |
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| institution | Kabale University |
| issn | 0031-1820 1469-8161 |
| language | English |
| publisher | Cambridge University Press |
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| series | Parasitology |
| spelling | doaj-art-0f58724a099644dba5f94e37f741ab012025-08-20T03:39:18ZengCambridge University PressParasitology0031-18201469-816111010.1017/S0031182025100589Taxonomy and systematics of 2 new species of myxozoans (Cnidaria: Myxobolidae) parasitizing the gills of Iheringichthys labrosus (Teleostei: Pimelodidae) from southeastern BrazilDiego Henrique Mirandola Dias Vieira0Maria João Santos1https://orcid.org/0000-0001-6655-491XSónia Rocha2https://orcid.org/0000-0001-6230-6142Luis Filipe Rangel3Rodrigo Bravin Narciso4Reinaldo José da Silva5Division of Parasitology, São Paulo State University (UNESP), Institute of Biosciences, Botucatu, SP, BrazilDepartment of Biology, Faculty of Sciences, CIIMAR, University of Porto, Porto, Portugal CIIMAR/CIMAR LA, Interdisciplinary Centre of Marine and Environmental Research, Laboratory of Animal Parasitology and Pathology, University of Porto, Matosinhos, PortugalInstituto de Investigação e Inovação em Saúde (i3S), University of Porto, Porto, Portugal School of Medicine and Biomedical Sciences (ICBAS), University of Porto, Porto, PortugalCIIMAR/CIMAR LA, Interdisciplinary Centre of Marine and Environmental Research, Laboratory of Animal Parasitology and Pathology, University of Porto, Matosinhos, PortugalDivision of Parasitology, São Paulo State University (UNESP), Institute of Biosciences, Botucatu, SP, BrazilDivision of Parasitology, São Paulo State University (UNESP), Institute of Biosciences, Botucatu, SP, BrazilAbstract During a survey of myxozoan infections in fishes from the Pardo River, Paranapanema River basin, São Paulo State, Brazil, 2 new species – Henneguya avareensis n. sp. and Myxobolus iheringichthys n. sp. – were discovered parasitizing the gills of Iheringichthys labrosus, a commercially important pimelodid fish in South America. Species descriptions were based on the morphology of myxospores and partial sequences of the small subunit ribosomal DNA. Phylogenetic analysis revealed host-related clustering, with the new species clustering together with other myxobolids that parasitize Pimelodidae (Siluriformes). Myxobolus iheringichthys n. sp. clustered specifically with Myxobolus cordeiroi, together forming yet another lineage of myxobolids infecting Pimelodidae fishes. Our analysis underscores the importance of monitoring the presence of these parasites in stocks of I. labrosus to assess potential pathologies they may cause. This is the first report of myxozoans parasitizing the gills of this Neotropical catfish. https://www.cambridge.org/core/product/identifier/S0031182025100589/type/journal_articlegill infectionmyxozoaPardo Riverphylogenyultrastructure |
| spellingShingle | Diego Henrique Mirandola Dias Vieira Maria João Santos Sónia Rocha Luis Filipe Rangel Rodrigo Bravin Narciso Reinaldo José da Silva Taxonomy and systematics of 2 new species of myxozoans (Cnidaria: Myxobolidae) parasitizing the gills of Iheringichthys labrosus (Teleostei: Pimelodidae) from southeastern Brazil Parasitology gill infection myxozoa Pardo River phylogeny ultrastructure |
| title | Taxonomy and systematics of 2 new species of myxozoans (Cnidaria: Myxobolidae) parasitizing the gills of Iheringichthys labrosus (Teleostei: Pimelodidae) from southeastern Brazil |
| title_full | Taxonomy and systematics of 2 new species of myxozoans (Cnidaria: Myxobolidae) parasitizing the gills of Iheringichthys labrosus (Teleostei: Pimelodidae) from southeastern Brazil |
| title_fullStr | Taxonomy and systematics of 2 new species of myxozoans (Cnidaria: Myxobolidae) parasitizing the gills of Iheringichthys labrosus (Teleostei: Pimelodidae) from southeastern Brazil |
| title_full_unstemmed | Taxonomy and systematics of 2 new species of myxozoans (Cnidaria: Myxobolidae) parasitizing the gills of Iheringichthys labrosus (Teleostei: Pimelodidae) from southeastern Brazil |
| title_short | Taxonomy and systematics of 2 new species of myxozoans (Cnidaria: Myxobolidae) parasitizing the gills of Iheringichthys labrosus (Teleostei: Pimelodidae) from southeastern Brazil |
| title_sort | taxonomy and systematics of 2 new species of myxozoans cnidaria myxobolidae parasitizing the gills of iheringichthys labrosus teleostei pimelodidae from southeastern brazil |
| topic | gill infection myxozoa Pardo River phylogeny ultrastructure |
| url | https://www.cambridge.org/core/product/identifier/S0031182025100589/type/journal_article |
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