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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Main Authors: Guy Benoit Lekeufack-Folefack, Armandine Estelle Tchoutezo-Tiwa, Jameel Al-Tamimi, Abraham Fomena, Suliman Yousef Al-Omar, Lamjed Mansour
Format: Article
Language:English
Published: Consortium of European Natural History Museums 2021-02-01
Series:European Journal of Taxonomy
Subjects:
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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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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