Myxobolus opsaridiumi sp. nov. (Cnidaria: Myxosporea) infecting different tissues of an ornamental fish, Opsaridium ubangiensis (Pellegrin, 1901), in Cameroon: morphological and molecular characterization
We report a new myxozoan, Myxobolus opsaridiumi sp. nov., infecting the ornamental fish Opsaridium ubangiensis (Pellegrin, 1901) collected from the Anga River near the city of Yaounde, Cameroon. Plasmodia were found in the skin, muscles and spleen. The overall prevalence of infection was 54.7% (288...
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Consortium of European Natural History Museums
2021-02-01
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Series: | European Journal of Taxonomy |
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Online Access: | https://europeanjournaloftaxonomy.eu/index.php/ejt/article/view/1221 |
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author | Guy Benoit Lekeufack-Folefack Armandine Estelle Tchoutezo-Tiwa Jameel Al-Tamimi Abraham Fomena Suliman Yousef Al-Omar Lamjed Mansour |
author_facet | Guy Benoit Lekeufack-Folefack Armandine Estelle Tchoutezo-Tiwa Jameel Al-Tamimi Abraham Fomena Suliman Yousef Al-Omar Lamjed Mansour |
author_sort | Guy Benoit Lekeufack-Folefack |
collection | DOAJ |
description | We report a new myxozoan, Myxobolus opsaridiumi sp. nov., infecting the ornamental fish Opsaridium ubangiensis (Pellegrin, 1901) collected from the Anga River near the city of Yaounde, Cameroon. Plasmodia were found in the skin, muscles and spleen. The overall prevalence of infection was 54.7% (288 parasitized fish out of 526 examined). The myxospores were ovoid to subspherical in frontal view and lenticular in lateral view. The valves were symmetrical and relatively thick, without edge markings. The myxospore measurements were 10.7 ± 0.14 (10–11.5) μm long, 9 ± 0.15 (8–10) μm wide and 6.2 ± 0.7 (5.6–7.2) μm thick. The two ovoid polar capsules were equal in size, converging and opening together at the anterior end, measuring 5 ± 0.07 (4.3–6.0) μm long and 2.7 ± 0.07 (2.2–3.0) μm wide. Polar filaments were coiled from 5 to 7 turns. Histopathological analysis revealed no inflammatory reaction associated with the infection. A BLAST search found that the newly obtained 18 rDNA sequence had a low sequence similarity with available sequences for Myxobolus on GenBank. A phylogenetical analysis based on ribosomal DNA partial sequences showed that M. opsaridiumi sp. nov. is closely associated with several species of Myxobolus infecting cyprinid fish. |
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issn | 2118-9773 |
language | English |
last_indexed | 2024-12-19T15:10:20Z |
publishDate | 2021-02-01 |
publisher | Consortium of European Natural History Museums |
record_format | Article |
series | European Journal of Taxonomy |
spelling | doaj.art-344ac47478c04a488c4233b1194c16aa2022-12-21T20:16:19ZengConsortium of European Natural History MuseumsEuropean Journal of Taxonomy2118-97732021-02-01733110.5852/ejt.2021.733.1221Myxobolus opsaridiumi sp. nov. (Cnidaria: Myxosporea) infecting different tissues of an ornamental fish, Opsaridium ubangiensis (Pellegrin, 1901), in Cameroon: morphological and molecular characterizationGuy Benoit Lekeufack-Folefack0Armandine Estelle Tchoutezo-Tiwa1Jameel Al-Tamimi2Abraham Fomena3Suliman Yousef Al-Omar4Lamjed Mansour5University of Yaounde 1, Faculty of Science, PO Box 812, Yaounde, CameroonUniversity of Yaounde 1, Faculty of Science, PO Box 812, Yaounde, CameroonDepartment of Zoology, College of Science, King Saud University, PO Box 2455, 11451 Riyadh, Saudi ArabiaUniversity of Yaounde 1, Faculty of Science, PO Box 812, Yaounde, CameroonDepartment of Zoology, College of Science, King Saud University, PO Box 2455, 11451 Riyadh, Saudi ArabiaDepartment of Zoology, College of Science, King Saud University, PO Box 2455, 11451 Riyadh, Saudi ArabiaWe report a new myxozoan, Myxobolus opsaridiumi sp. nov., infecting the ornamental fish Opsaridium ubangiensis (Pellegrin, 1901) collected from the Anga River near the city of Yaounde, Cameroon. Plasmodia were found in the skin, muscles and spleen. The overall prevalence of infection was 54.7% (288 parasitized fish out of 526 examined). The myxospores were ovoid to subspherical in frontal view and lenticular in lateral view. The valves were symmetrical and relatively thick, without edge markings. The myxospore measurements were 10.7 ± 0.14 (10–11.5) μm long, 9 ± 0.15 (8–10) μm wide and 6.2 ± 0.7 (5.6–7.2) μm thick. The two ovoid polar capsules were equal in size, converging and opening together at the anterior end, measuring 5 ± 0.07 (4.3–6.0) μm long and 2.7 ± 0.07 (2.2–3.0) μm wide. Polar filaments were coiled from 5 to 7 turns. Histopathological analysis revealed no inflammatory reaction associated with the infection. A BLAST search found that the newly obtained 18 rDNA sequence had a low sequence similarity with available sequences for Myxobolus on GenBank. A phylogenetical analysis based on ribosomal DNA partial sequences showed that M. opsaridiumi sp. nov. is closely associated with several species of Myxobolus infecting cyprinid fish.https://europeanjournaloftaxonomy.eu/index.php/ejt/article/view/1221myxozoan parasitesfish pathologynew speciesAfricaSSU rDNAphylogeny |
spellingShingle | Guy Benoit Lekeufack-Folefack Armandine Estelle Tchoutezo-Tiwa Jameel Al-Tamimi Abraham Fomena Suliman Yousef Al-Omar Lamjed Mansour Myxobolus opsaridiumi sp. nov. (Cnidaria: Myxosporea) infecting different tissues of an ornamental fish, Opsaridium ubangiensis (Pellegrin, 1901), in Cameroon: morphological and molecular characterization European Journal of Taxonomy myxozoan parasites fish pathology new species Africa SSU rDNA phylogeny |
title | Myxobolus opsaridiumi sp. nov. (Cnidaria: Myxosporea) infecting different tissues of an ornamental fish, Opsaridium ubangiensis (Pellegrin, 1901), in Cameroon: morphological and molecular characterization |
title_full | Myxobolus opsaridiumi sp. nov. (Cnidaria: Myxosporea) infecting different tissues of an ornamental fish, Opsaridium ubangiensis (Pellegrin, 1901), in Cameroon: morphological and molecular characterization |
title_fullStr | Myxobolus opsaridiumi sp. nov. (Cnidaria: Myxosporea) infecting different tissues of an ornamental fish, Opsaridium ubangiensis (Pellegrin, 1901), in Cameroon: morphological and molecular characterization |
title_full_unstemmed | Myxobolus opsaridiumi sp. nov. (Cnidaria: Myxosporea) infecting different tissues of an ornamental fish, Opsaridium ubangiensis (Pellegrin, 1901), in Cameroon: morphological and molecular characterization |
title_short | Myxobolus opsaridiumi sp. nov. (Cnidaria: Myxosporea) infecting different tissues of an ornamental fish, Opsaridium ubangiensis (Pellegrin, 1901), in Cameroon: morphological and molecular characterization |
title_sort | myxobolus opsaridiumi sp nov cnidaria myxosporea infecting different tissues of an ornamental fish opsaridium ubangiensis pellegrin 1901 in cameroon morphological and molecular characterization |
topic | myxozoan parasites fish pathology new species Africa SSU rDNA phylogeny |
url | https://europeanjournaloftaxonomy.eu/index.php/ejt/article/view/1221 |
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