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Ebert MB, Narciso RB, Vieira Dias DHM, Osaki-Pereira MM, Jorge M, de León GPP, da Silva RJ. Parasites (Monogenea) of tilapias Oreochromis niloticus and Coptodon rendalli (Cichlidae) in a river spring in Brazil. Parasite 2024; 31:22. [PMID: 38602374 PMCID: PMC11008226 DOI: 10.1051/parasite/2024021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 03/13/2024] [Indexed: 04/12/2024] Open
Abstract
In the present study, we examined 30 individuals of introduced African cichlids, Oreochromis niloticus and Coptodon rendalli, collected in a river spring of the Pardo River, Paranapanema River basin, southeastern Brazil. Based on morphological and molecular analyses of the partial LSU rDNA gene, we identified four species of monogeneans, Cichlidogyrus tilapiae, C. thurstonae, C. mbirizei, and Scutogyrus longicornis on the gills of O. niloticus, whereas individuals of C. rendalli were infested only with C. papernastrema. This is the first record of C. mbirizei and C. papernastrema in tilapias from Brazil. The ecological consequences of the introduction of exotic species of tilapia such as O. niloticus and C. rendalli along with their monogenean parasites in a wild environment represented by a river spring are discussed. Our new molecular data on Cichlidogyrus and Scutogyrus contribute to the investigation of the phylogenetic interrelationships of these widely distributed genera of monogeneans since their species composition is still unsettled.
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Affiliation(s)
- Mariana Bertholdi Ebert
- São Paulo State University (UNESP), Institute of Biosciences, Department of Biodiversity and Biostatistics, Section of Parasitology Botucatu SP Brazil
| | - Rodrigo Bravin Narciso
- São Paulo State University (UNESP), Institute of Biosciences, Department of Biodiversity and Biostatistics, Section of Parasitology Botucatu SP Brazil
| | - Diego Henrique Mirandola Vieira Dias
- São Paulo State University (UNESP), Institute of Biosciences, Department of Biodiversity and Biostatistics, Section of Parasitology Botucatu SP Brazil
| | - Melissa Miyuki Osaki-Pereira
- São Paulo State University (UNESP), Institute of Biosciences, Department of Biodiversity and Biostatistics, Section of Parasitology Botucatu SP Brazil
| | - Maurício Jorge
- São Paulo State University (UNESP), Institute of Biosciences, Department of Biodiversity and Biostatistics, Section of Parasitology Botucatu SP Brazil
| | - Gerardo Pérez-Ponce de León
- Escuela Nacional de Estudios Superiores, Unidad Mérida, Universidad Nacional Autónoma de México 97357 Ucú Yucatán Mexico
| | - Reinaldo José da Silva
- São Paulo State University (UNESP), Institute of Biosciences, Department of Biodiversity and Biostatistics, Section of Parasitology Botucatu SP Brazil
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2
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Geraerts M, Huyse T, Barson M, Bassirou H, Bilong Bilong CF, Bitja Nyom AR, Manda AC, Cruz-Laufer AJ, Kabalika CK, Kasembele GK, Bukinga FM, Njom S, Van Steenberge M, Artois T, Vanhove MPM. Sharing is caring? Barcoding suggests co-introduction of dactylogyrid monogeneans with Nile tilapia and transfer towards native tilapias in sub-Saharan Africa. Int J Parasitol 2023; 53:711-730. [PMID: 37414208 DOI: 10.1016/j.ijpara.2023.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/09/2023] [Accepted: 05/10/2023] [Indexed: 07/08/2023]
Abstract
Invasive Nile tilapias negatively impact native tilapia species through hybridisation and competition. However, the co-introduction of parasites with Nile tilapia, and subsequent changes in parasite communities, are scarcely documented. Monogeneans are known pathogens of cultured Nile tilapia, although little is known about their fate once Nile tilapias establish in new ecosystems. We investigate the parasitological consequences of Nile tilapia introduction on native tilapias in basins in Cameroon, the Democratic Republic of the Congo (DRC), and Zimbabwe, focusing on ectoparasitic dactylogyrids (Monogenea). Using the mitochondrial cytochrome oxidase c subunit I (COI) and nuclear 18S-internal transcribed spacer 1 (18S-ITS1) rDNA region of 128 and 166 worms, respectively, we evaluated transmission of several dactylogyrid species. Parasite spillover from Nile tilapia was detected for Cichlidogyrus tilapiae to Coptodon guineensis in Cameroon, Cichlidogyrus thurstonae to Oreochromis macrochir in the DRC, and Cichlidogyrus halli and C. tilapiae to Coptodon rendalli in Zimbabwe. Parasite spillback to Nile tilapia was detected for Cichlidogyrus papernastrema and Scutogyrus gravivaginus from Tilapia sparrmanii and Cichlidogyrus dossoui from C. rendalli or T. sparrmanii in the DRC, and Cichlidogyrus chloeae from Oreochromis cf. mortimeri and S. gravivaginus from O. macrochir in Zimbabwe. 'Hidden' transmissions (i.e. transmission of certain parasite lineages of species that are naturally present on both alien and native hosts) were detected for C. tilapiae and Scutogyrus longicornis between Nile tilapia and Oreochromis aureus and C. tilapiae between Nile tilapia and Oreochromis mweruensis in the DRC, and Cichlidogyrus sclerosus and C. tilapiae between Nile tilapia and O. cf. mortimeri in Zimbabwe. A high density of Nile tilapia occurring together with native tilapias, and the broad host range and/or environmental tolerance of the transmitted parasites, are proposed as factors behind parasite transmission through ecological fitting. However, continuous monitoring and the inclusion of environmental variables are necessary to understand the long-term consequences of these transmissions on native tilapias and to elucidate other underlying factors influencing these transmissions.
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Affiliation(s)
- Mare Geraerts
- UHasselt - Hasselt University, Faculty of Sciences, Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, Diepenbeek, Belgium.
| | - Tine Huyse
- Department of Biology, Royal Museum for Central Africa, Tervuren, Belgium; Laboratory of Biodiversity and Evolutionary Genomics, KU Leuven, Leuven, Belgium
| | - Maxwell Barson
- Department of Biological Sciences, University of Zimbabwe, Harare, Zimbabwe; Department of Biological Sciences, University of Botswana, Gaborone, Botswana; Lake Kariba Research Station, University of Zimbabwe, Kariba, Zimbabwe
| | - Hassan Bassirou
- Department of Biological Sciences, University of Ngaoundéré, Ngaoundéré, Cameroon
| | | | - Arnold R Bitja Nyom
- Department of Biological Sciences, University of Ngaoundéré, Ngaoundéré, Cameroon; Department of Management of Fisheries and Aquatic Ecosystems, Institute of Fisheries, University of Douala, Douala, Cameroon
| | - Auguste Chocha Manda
- Unité de Recherche en Biodiversité et Exploitation durable des Zones Humides (BEZHU), Faculté des Sciences Agronomiques, Université de Lubumbashi, Lubumbashi, Democratic Republic of the Congo
| | - Armando J Cruz-Laufer
- UHasselt - Hasselt University, Faculty of Sciences, Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, Diepenbeek, Belgium
| | - Clément Kalombo Kabalika
- Unité de Recherche en Biodiversité et Exploitation durable des Zones Humides (BEZHU), Faculté des Sciences Agronomiques, Université de Lubumbashi, Lubumbashi, Democratic Republic of the Congo
| | - Gyrhaiss Kapepula Kasembele
- Unité de Recherche en Biodiversité et Exploitation durable des Zones Humides (BEZHU), Faculté des Sciences Agronomiques, Université de Lubumbashi, Lubumbashi, Democratic Republic of the Congo
| | - Fidel Muterezi Bukinga
- Section de Parasitologie, Département de Biologie, Centre de Recherche en Hydrobiologie, Uvira, Democratic Republic of the Congo
| | - Samuel Njom
- Department of Biological Sciences, University of Ngaoundéré, Ngaoundéré, Cameroon
| | - Maarten Van Steenberge
- Laboratory of Biodiversity and Evolutionary Genomics, KU Leuven, Leuven, Belgium; Vertebrate Section, OD Taxonomy and Phylogeny, Royal Belgian Institute of Natural Sciences, Brussels, Belgium
| | - Tom Artois
- UHasselt - Hasselt University, Faculty of Sciences, Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, Diepenbeek, Belgium
| | - Maarten P M Vanhove
- UHasselt - Hasselt University, Faculty of Sciences, Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, Diepenbeek, Belgium; Laboratory of Biodiversity and Evolutionary Genomics, KU Leuven, Leuven, Belgium
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3
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Kasembele GK, Manda AC, Abwe E, Pariselle A, Bukinga FM, Huyse T, Jorissen MWP, Vreven EJWMN, Luus-Powell WJ, Smit WJ, Sara JR, Snoeks J, Vanhove MPM. First record of monogenean fish parasites in the Upper Lufira River Basin (Democratic Republic of Congo): dactylogyrids and gyrodactylids infesting Oreochromis mweruensis, Coptodon rendalli and Serranochromis macrocephalus (Teleostei: Cichlidae). Parasit Vectors 2023; 16:48. [PMID: 36732829 PMCID: PMC9893698 DOI: 10.1186/s13071-022-05637-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 12/24/2022] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Monogenean parasites have never been formally reported on fishes from the Lufira River Basin. In this context, we decided to record the monogenean parasite fauna of three cichlid species found in the Upper Lufira River Basin for the first time by inventorizing their diversity (species composition) and analysing their infection parameters (prevalence, mean intensity and abundance). METHODS The African cichlid fishes Oreochromis mweruensis, Coptodon rendalli and Serranochromis macrocephalus were selected for the study, given their economic value and their abundance in the Upper Lufira River Basin. Monogeneans were isolated from the gills and stomach, mounted on glass slides with either Hoyer's medium or ammonium picrate-glycerin for identification under a stereomicroscope, based on morphological analysis of genital and haptoral hard parts. Indices of diversity and infections parameters were calculated. RESULTS A total of 13 gill monogenean parasite species (Cichlidogyrus dossoui, C. halli, C. karibae, C. mbirizei, C. papernastrema, C. quaestio, C. sclerosus, C. tiberianus, C. tilapiae, C. zambezensis, Scutogyrus gravivaginus, S. cf. bailloni and Gyrodactylus nyanzae) and one stomach monogenean (Enterogyrus malmbergi) were identified. A species richness (S) of 10 for O. mweruensis, S = 6 for C. rendalli and S = 2 for S. macrocephalus was recorded. Five parasite species were reported to be common amongst O. mweruensis and C. rendalli. According to cichlid species, the most prevalent parasite species was C. halli (prevalence [P] = 80.9%) on O. mweruensis, C. dossoui (P = 92.9%) on C. rendalli and C. karibae and C. zambezensis (both P = 9.1%) on S. macrocephalus. The parasite species with the highest mean intensity (MI) were G. nyanzae (MI = 8.7) on O. mweruensis, C. papernastrema (MI = 17.1) on C. rendalli and C. karibae (MI = 15) on S. macrocephalus. The findings indicate new host ranges for five parasites species (C. quaestio, S. cf. bailloni, E. malmbergi on O. mweruensis, C. halli on C. rendalli and C. karibae on S. macrocephalus) as well as new geographical records for all of them as they are recorded for the first time in the Lufira River Basin. CONCLUSIONS This study highlighted the richness of monogenean communities in the Upper Lufira River Basin and is a starting point for future helminthological studies, such as on the use of fish parasites as indicators of anthropogenic impacts.
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Affiliation(s)
- Gyrhaiss Kapepula Kasembele
- grid.440826.c0000 0001 0732 4647Unité de Recherche en Biodiversité et Exploitation durable des Zones Humides (BEZHU), Faculté des Sciences Agronomiques, Université de Lubumbashi, Haut-Katanga, Democratic Republic of Congo
| | - Auguste Chocha Manda
- grid.440826.c0000 0001 0732 4647Unité de Recherche en Biodiversité et Exploitation durable des Zones Humides (BEZHU), Faculté des Sciences Agronomiques, Université de Lubumbashi, Haut-Katanga, Democratic Republic of Congo
| | - Emmanuel Abwe
- grid.440826.c0000 0001 0732 4647Unité de Recherche en Biodiversité et Exploitation durable des Zones Humides (BEZHU), Faculté des Sciences Agronomiques, Université de Lubumbashi, Haut-Katanga, Democratic Republic of Congo ,grid.425938.10000 0001 2155 6508Department of Biology, Royal Museum for Central Africa, Leuvensesteenweg 13, 3080 Tervuren, Belgium ,grid.5596.f0000 0001 0668 7884Laboratory of Biodiversity and Evolutionary Genomics, Department of Biology, University of Leuven, Ch. Deberiotstraat 32, 3000 Leuven, Belgium
| | - Antoine Pariselle
- grid.121334.60000 0001 2097 0141CNRS, IRD, Institut des Sciences de l’Évolution Montpellier (ISEM), Université Montpellier, Montpellier, France ,grid.31143.340000 0001 2168 4024ISEM, Univ Montpellier, CNRS, IRD, Montpellier, France; Faculty of Sciences, Mohammed V University in Rabat, Rabat, Morocco
| | - Fidel Muterezi Bukinga
- Section de Parasitologie, Département de Biologie, Centre de Recherche en Hydrobiologie, Uvira, Democratic Republic of Congo
| | - Tine Huyse
- grid.425938.10000 0001 2155 6508Department of Biology, Royal Museum for Central Africa, Leuvensesteenweg 13, 3080 Tervuren, Belgium ,grid.5596.f0000 0001 0668 7884Laboratory of Biodiversity and Evolutionary Genomics, Department of Biology, University of Leuven, Ch. Deberiotstraat 32, 3000 Leuven, Belgium
| | - Michiel Willem Paul Jorissen
- grid.425938.10000 0001 2155 6508Department of Biology, Royal Museum for Central Africa, Leuvensesteenweg 13, 3080 Tervuren, Belgium ,grid.12155.320000 0001 0604 5662Research Group Zoology: Biodiversity & Toxicology, Centre for Environmental Sciences, Hasselt University, 3590 Diepenbeek, Belgium
| | | | - Wilmien Jacoba Luus-Powell
- grid.411732.20000 0001 2105 2799DSI-NRF SARChI Chair, Department of Biodiversity, University of Limpopo, Sovenga, 0727 South Africa
| | - Willem Johannes Smit
- grid.411732.20000 0001 2105 2799DSI-NRF SARChI Chair, Department of Biodiversity, University of Limpopo, Sovenga, 0727 South Africa
| | - Joseph Roderick Sara
- grid.411732.20000 0001 2105 2799DSI-NRF SARChI Chair, Department of Biodiversity, University of Limpopo, Sovenga, 0727 South Africa
| | - Jos Snoeks
- grid.425938.10000 0001 2155 6508Department of Biology, Royal Museum for Central Africa, Leuvensesteenweg 13, 3080 Tervuren, Belgium ,grid.5596.f0000 0001 0668 7884Laboratory of Biodiversity and Evolutionary Genomics, Department of Biology, University of Leuven, Ch. Deberiotstraat 32, 3000 Leuven, Belgium
| | - Maarten Pieterjan Maria Vanhove
- grid.425938.10000 0001 2155 6508Department of Biology, Royal Museum for Central Africa, Leuvensesteenweg 13, 3080 Tervuren, Belgium ,grid.5596.f0000 0001 0668 7884Laboratory of Biodiversity and Evolutionary Genomics, Department of Biology, University of Leuven, Ch. Deberiotstraat 32, 3000 Leuven, Belgium ,grid.12155.320000 0001 0604 5662Research Group Zoology: Biodiversity & Toxicology, Centre for Environmental Sciences, Hasselt University, 3590 Diepenbeek, Belgium ,grid.20478.390000 0001 2171 9581Capacities for Biodiversity and Sustainable Development, Operational Directorate Natural Environment, Royal Belgian Institute of Natural Sciences, Vautierstraat 29, 1000 Brussels, Belgium ,grid.7737.40000 0004 0410 2071Zoology Unit, Finnish Museum of Natural History, University of Helsinki, P.O. Box 17, 00014 Helsinki, Finland
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4
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Geraerts M, Huyse T, Vanhove MPM, Artois T. A new species of Cichlidogyrus Paperna, 1960 (Platyhelminthes: Monogenea: Dactylogyridae) infecting tilapias in Lake Kariba (Zimbabwe), with a discussion on its phylogenetic position. SYST BIODIVERS 2022. [DOI: 10.1080/14772000.2022.2143594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Mare Geraerts
- Faculty of Sciences, Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, UHasselt – Hasselt University, Agoralaan Gebouw D, Diepenbeek, 3590, Belgium
| | - Tine Huyse
- Department of Biology, Royal Museum for Central Africa, Leuvensesteenweg 13, Tervuren, 3080, Belgium
| | - Maarten P. M. Vanhove
- Faculty of Sciences, Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, UHasselt – Hasselt University, Agoralaan Gebouw D, Diepenbeek, 3590, Belgium
- Zoology Unit, Finnish Museum of Natural History, University of Helsinki, Pohjoinen Rautatiekatu 13, Helsinki, 00100, Finland
| | - Tom Artois
- Faculty of Sciences, Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, UHasselt – Hasselt University, Agoralaan Gebouw D, Diepenbeek, 3590, Belgium
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5
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6
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Geraerts M, Huyse T, Barson M, Bassirou H, Bilong Bilong CF, Bitja Nyom AR, Chocha Manda A, Cruz-Laufer AJ, Kalombo Kabalika C, Kapepula Kasembele G, Muterezi Bukinga F, Njom S, Artois T, Vanhove MPM. Mosaic or melting pot: The use of monogeneans as a biological tag and magnifying glass to discriminate introduced populations of Nile tilapia in sub-Saharan Africa. Genomics 2022; 114:110328. [PMID: 35276332 DOI: 10.1016/j.ygeno.2022.110328] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 02/10/2022] [Accepted: 03/06/2022] [Indexed: 01/14/2023]
Abstract
The origin of introduced Nile tilapia stocks in sub-Saharan Africa is largely unknown. In this study, the potential of monogeneans as a biological tag and magnifying glass is tested to reveal their hosts' stocking history. The monogenean gill community of different Nile tilapia populations in sub-Saharan Africa was explored, and a phylogeographic analysis was performed based on the mitogenomes of four dactylogyrid species (Cichlidogyrus halli, C. sclerosus, C. thurstonae, and Scutogyrus longicornis). Our results encourage the use of dactylogyrids as biological tags. The magnifying glass hypothesis is only confirmed for C. thurstonae, highlighting the importance of the absence of other potential hosts as prerequisites for a parasite to act as a magnifying glass. With the data generated here, we are the first to extract mitogenomes from individual monogeneans and to perform an upscaled survey of the comparative phylogeography of several monogenean species with unprecedented diagnostic resolution.
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Affiliation(s)
- Mare Geraerts
- UHasselt - Hasselt University, Faculty of Sciences, Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, Diepenbeek, Belgium.
| | - Tine Huyse
- Department of Biology, Royal Museum for Central Africa, Tervuren, Belgium
| | - Maxwell Barson
- Department of Biological Sciences, University of Zimbabwe, Harare, Zimbabwe; Department of Biological Sciences, University of Botswana, Gaborone, Botswana; Lake Kariba Research Station, University of Zimbabwe, Kariba, Zimbabwe
| | - Hassan Bassirou
- Department of Biological Sciences, University of Ngaoundéré, Ngaoundéré, Cameroon
| | | | - Arnold R Bitja Nyom
- Department of Biological Sciences, University of Ngaoundéré, Ngaoundéré, Cameroon; Department of Management of Fisheries and Aquatic Ecosystems, Institute of Fisheries, University of Douala, Douala, Cameroon
| | - Auguste Chocha Manda
- Unité de Recherche en Biodiversité et Exploitation durable des Zones Humides (BEZHU), Faculté des Sciences Agronomiques, Université de Lubumbashi, Lubumbashi, Democratic Republic of the Congo
| | - Armando J Cruz-Laufer
- UHasselt - Hasselt University, Faculty of Sciences, Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, Diepenbeek, Belgium
| | - Clément Kalombo Kabalika
- Unité de Recherche en Biodiversité et Exploitation durable des Zones Humides (BEZHU), Faculté des Sciences Agronomiques, Université de Lubumbashi, Lubumbashi, Democratic Republic of the Congo
| | - Gyrhaiss Kapepula Kasembele
- Unité de Recherche en Biodiversité et Exploitation durable des Zones Humides (BEZHU), Faculté des Sciences Agronomiques, Université de Lubumbashi, Lubumbashi, Democratic Republic of the Congo
| | - Fidel Muterezi Bukinga
- Section de Parasitologie, Département de Biologie, Centre de Recherche en Hydrobiologie, Uvira, Democratic Republic of the Congo
| | - Samuel Njom
- Department of Biological Sciences, University of Ngaoundéré, Ngaoundéré, Cameroon
| | - Tom Artois
- UHasselt - Hasselt University, Faculty of Sciences, Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, Diepenbeek, Belgium
| | - Maarten P M Vanhove
- UHasselt - Hasselt University, Faculty of Sciences, Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, Diepenbeek, Belgium; Zoology Unit, Finnish Museum of Natural History, University of Helsinki, Helsinki, Finland
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7
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Cruz-Laufer AJ, Pariselle A, Jorissen MWP, Muterezi Bukinga F, Al Assadi A, Van Steenberge M, Koblmüller S, Sturmbauer C, Smeets K, Huyse T, Artois T, Vanhove MPM. Somewhere I belong: phylogeny and morphological evolution in a species-rich lineage of ectoparasitic flatworms infecting cichlid fishes. Cladistics 2022; 38:465-512. [PMID: 35488795 DOI: 10.1111/cla.12506] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 03/19/2022] [Accepted: 03/23/2022] [Indexed: 02/05/2023] Open
Abstract
A substantial portion of biodiversity has evolved through adaptive radiation. However, the effects of explosive speciation on species interactions remain poorly understood. Metazoan parasites infecting radiating host lineages could improve our knowledge because of their intimate host relationships. Yet limited molecular, phenotypic and ecological data discourage multivariate analyses of evolutionary patterns and encourage the use of discrete characters. Here, we assemble new molecular, morphological and host range data widely inferred from a species-rich lineage of parasites (Cichlidogyrus, Platyhelminthes: Monogenea) infecting cichlid fishes to address data scarcity. We infer a multimarker (28S/18S rDNA, ITS1, COI mtDNA) phylogeny of 58 of 137 species and characterize major lineages through synapomorphies inferred from mapping morphological characters. We predict the phylogenetic position of species without DNA data through shared character states, a morphological phylogenetic analysis, and a classification analysis with support vector machines. Based on these predictions and a cluster analysis, we assess the systematic informativeness of continuous characters, search for continuous equivalents for discrete characters, and suggest new characters for morphological traits not analysed to date. We also model the attachment/reproductive organ and host range evolution using the data for 136 of 137 described species and multivariate phylogenetic comparative methods (PCMs). We show that discrete characters not only can mask phylogenetic signals, but also are key for characterizing species groups. Regarding the attachment organ morphology, a divergent evolutionary regime for at least one lineage was detected and a limited morphological variation indicates host and environmental parameters affecting its evolution. However, moderate success in predicting phylogenetic positions, and a low systematic informativeness and high multicollinearity of morphological characters call for a revaluation of characters included in species characterizations.
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Affiliation(s)
- Armando J Cruz-Laufer
- Faculty of Sciences, Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, UHasselt - Hasselt University, Agoralaan Gebouw D, Diepenbeek, 3590, Belgium
| | - Antoine Pariselle
- ISEM, Université de Montpellier, CNRS, IRD, Montpellier, France.,Faculty of Sciences, Laboratory "Biodiversity, Ecology and Genome", Research Centre "Plant and Microbial Biotechnology, Biodiversity and Environment", Mohammed V University, Rabat, Morocco
| | - Michiel W P Jorissen
- Faculty of Sciences, Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, UHasselt - Hasselt University, Agoralaan Gebouw D, Diepenbeek, 3590, Belgium.,Department of Biology, Royal Museum for Central Africa, Tervuren, Belgium
| | - Fidel Muterezi Bukinga
- Section de Parasitologie, Département de Biologie, Centre de Recherche en Hydrobiologie, Uvira, Democratic Republic of the Congo
| | - Anwar Al Assadi
- Fraunhofer Institute for Manufacturing Engineering and Automation IPA, Nobelstraße 12, Stuttgart, 70569, Germany
| | - Maarten Van Steenberge
- Laboratory of Biodiversity and Evolutionary Genomics, KU Leuven, Charles Deberiotstraat 32, Leuven, B-3000, Belgium.,Operational Directorate Taxonomy and Phylogeny, Royal Belgian Institute of Natural Sciences, Vautierstraat 29, Brussels, B-1000, Belgium
| | - Stephan Koblmüller
- Institute of Biology, University of Graz, Universitätsplatz 2, Graz, 8010, Austria
| | - Christian Sturmbauer
- Institute of Biology, University of Graz, Universitätsplatz 2, Graz, 8010, Austria
| | - Karen Smeets
- Faculty of Sciences, Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, UHasselt - Hasselt University, Agoralaan Gebouw D, Diepenbeek, 3590, Belgium
| | - Tine Huyse
- Section de Parasitologie, Département de Biologie, Centre de Recherche en Hydrobiologie, Uvira, Democratic Republic of the Congo.,Laboratory of Biodiversity and Evolutionary Genomics, KU Leuven, Charles Deberiotstraat 32, Leuven, B-3000, Belgium
| | - Tom Artois
- Faculty of Sciences, Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, UHasselt - Hasselt University, Agoralaan Gebouw D, Diepenbeek, 3590, Belgium
| | - Maarten P M Vanhove
- Faculty of Sciences, Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, UHasselt - Hasselt University, Agoralaan Gebouw D, Diepenbeek, 3590, Belgium.,Laboratory of Biodiversity and Evolutionary Genomics, KU Leuven, Charles Deberiotstraat 32, Leuven, B-3000, Belgium
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8
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Rahmouni C, Vanhove MP, Koblmüller S, Šimková A. Molecular phylogeny and speciation patterns in host-specific monogeneans (Cichlidogyrus, Dactylogyridae) parasitizing cichlid fishes (Cichliformes, Cichlidae) in lake tanganyika. Int J Parasitol 2022; 52:359-375. [DOI: 10.1016/j.ijpara.2021.12.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 12/09/2021] [Accepted: 12/15/2021] [Indexed: 12/01/2022]
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9
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FALKENBERG JULIAM, LIMA VITÓRIAMDE, VIEIRA GUSTAVOH, LACERDA ANACAROLINAF. Metazoan parasites of white mullet Mugil curema Valenciennes, 1836 (Mugiliformes: Mugilidae) and new records of occurrence in the western Atlantic, Brazil. AN ACAD BRAS CIENC 2022; 94:e20200496. [DOI: 10.1590/0001-3765202220200496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 11/11/2020] [Indexed: 11/22/2022] Open
Affiliation(s)
- JULIA M. FALKENBERG
- Universidade Federal da Paraíba, Brazil; Universidade Federal da Paraíba, Brazil
| | | | - GUSTAVO H.C. VIEIRA
- Universidade Federal da Paraíba, Brazil; Universidade Federal da Paraíba, Brazil
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Sastraprawira SM, Abd. Razak IH, Shahimi S, Pati S, Edinur HA, John AB, Ahmad A, Kumaran JV, Martin MB, Chong JL, Chowdhury AJK, Nelson BR. A review on introduced Cichla spp. and emerging concerns. Heliyon 2020; 6:e05370. [PMID: 33204875 PMCID: PMC7648196 DOI: 10.1016/j.heliyon.2020.e05370] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 09/14/2020] [Accepted: 10/26/2020] [Indexed: 11/15/2022] Open
Abstract
Peacock bass (Cichla spp.) originates from the Neotropical environments of Brazil and Venezuela but, through trade and smuggling for aquarium keeping, sport fishing and aquaculture, it is now an emerging concern. Yet, less is known for Cichla spp. distribution and its ability to invade new environments. Aimed to communicate on Cichla spp. ecology, biology and introduction schemes from Scopus, Web of Science, Google Scholar and also National Centre for Biotechnology Information, this review also contains management strategies for invading fish species. While Cichla spp. can displace native fish populations, this concern is explained using ecological functions, physiological demands, direct and secondary invasion, disease tolerance and parasite spillover. Briefly, Cichla spp. has rapid embryogenesis (72 h) and matures in short periods (11-12 months), giving it an advantage to colonize new environments. With a large appetite, this true piscivore gains territorial control over water bodies by making it their feeding and nursery grounds. Perceived as an emerging concern after becoming introduced, seal-off or sport fishing were used to manage Cichla spp. but, this practice is not sustainable for the entire ecosystem. Hence, we recommend bottom-up management that involves community participation because they interact with the fish and have knowledge about their environment.
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Affiliation(s)
- Shantika Maylana Sastraprawira
- Institute of Tropical Biodiversity and Sustainable Development, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Iqbal Harith Abd. Razak
- Faculty of Marine and Environmnetal Sciences, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Salwa Shahimi
- Institute of Tropical Biodiversity and Sustainable Development, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
- Faculty of Marine and Environmnetal Sciences, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Siddhartha Pati
- Institute of Tropical Biodiversity and Sustainable Development, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
- Research Division, Association of Biodiversity Conservation and Research, Devine Colony, 756001 Balasore, Odisha, India
| | - Hisham Atan Edinur
- Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia
- Environmental Futures Research Institute, Griffith University, Nathan, Queensland 4111, Australia
| | - Akbar Bavajohn John
- Institute of Oceanography and Maritime Studies, Kulliyyah of Science, Jalan Sultan Ahmad Shah, 25200 Kuantan, Pahang, Malaysia
| | - Amirrudin Ahmad
- Faculty of Marine and Environmnetal Sciences, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Jayaraj Vijaya Kumaran
- Centre of Excellence for Entrepreneurship Research and Innovation, Universiti Malaysia Kelantan, Locked Bag 36, Pengkalan Chepa, 16100 Kota Bharu, Kelantan, Malaysia
| | - Melissa Beata Martin
- Faculty of Marine and Environmnetal Sciences, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Ju Lian Chong
- Faculty of Marine and Environmnetal Sciences, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Ahmed Jalal Khan Chowdhury
- Department of Marine Science, Kulliyyah of Science, International Islamic University Malaysia Kuantan, Jalan Sultan Ahmad Shah, 25200, Kuantan, Malaysia
| | - Bryan Raveen Nelson
- Institute of Tropical Biodiversity and Sustainable Development, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
- Research Division, Association of Biodiversity Conservation and Research, Devine Colony, 756001 Balasore, Odisha, India
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11
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Historical museum collections help detect parasite species jumps after tilapia introductions in the Congo Basin. Biol Invasions 2020. [DOI: 10.1007/s10530-020-02288-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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12
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Geraerts M, Muterezi Bukinga F, Vanhove MPM, Pariselle A, Chocha Manda A, Vreven E, Huyse T, Artois T. Six new species of Cichlidogyrus Paperna, 1960 (Platyhelminthes: Monogenea) from the gills of cichlids (Teleostei: Cichliformes) from the Lomami River Basin (DRC: Middle Congo). Parasit Vectors 2020; 13:187. [PMID: 32272977 PMCID: PMC7147007 DOI: 10.1186/s13071-020-3927-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 02/01/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Monogenea van Beneden, 1858 is a group of parasitic flatworms, commonly found infecting bony fish. Several genera, such as Cichlidogyrus Paperna, 1960, are reported to include potential pathogenic species that can negatively impact aquaculture fish stocks. They can switch from introduced to native fish and vice versa. In Africa (and all over the world), fish species belonging to Cichlidae are often kept in aquaculture and represent a major source of food. Thus, research on the biodiversity and occurrence of monogenean species on these fish is of importance for aquaculture and conservation. The present study is a survey of the diversity of species of Cichlidogyrus in the south of the Democratic Republic of the Congo (DRC) on three cichlid species: Orthochromis sp. 'Lomami', Serranochromis cf. macrocephalus, and Tilapia sparrmanii Smith, 1840. METHODS Specimens of Cichlidogyrus were isolated from the gills and mounted on glass slides with Hoyer's medium. The genital and haptoral hard parts were measured and drawn using interference contrast. RESULTS In total, six species of Cichlidogyrus were found, all new to science: C. bulbophallus n. sp. and C. pseudozambezensis n. sp. on S. cf. macrocephalus, C. flagellum n. sp. and C. lobus n. sp. on T. sparrmanii, C. ranula n. sp. on S. cf. macrocephalus and Orthochromis sp. 'Lomami', and C. maeander n. sp. found on Orthochromis sp. 'Lomami' and T. sparrmanii. The first four species are considered to be strict specialists, C. ranula n. sp. an intermediate generalist and C. maeander n. sp. a generalist. These parasite species show morphological similarities to species found in the Lower Guinea and Zambezi ichthyofaunal provinces, which might be explained by past river capture events between river systems of the Congo Province and both these regions. CONCLUSIONS Serranochromis cf. macrocephalus and Orthochromis sp. 'Lomami' can harbour respectively three and two species of Cichlidogyrus, all described in this study. Tilapia sparrmanii can harbour seven species, of which three are described in the present study. These results highlight the species diversity of this parasite genus in the Congo Basin.
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Affiliation(s)
- Mare Geraerts
- Research Group Zoology: Biodiversity and Toxicology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Fidel Muterezi Bukinga
- Section de Parasitologie, Département de Biologie, Centre de Recherche en Hydrobiologie, Uvira, Democratic Republic of the Congo
| | - Maarten P. M. Vanhove
- Research Group Zoology: Biodiversity and Toxicology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
- Zoology Unit, Finnish Museum of Natural History, University of Helsinki, Helsinki, Finland
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno, Czech Republic
- Laboratory of Biodiversity and Evolutionary Genomics, Department of Biology, University of Leuven, Leuven, Belgium
| | - Antoine Pariselle
- ISEM, Université de Montpellier, CNRS, IRD, EPHE, CIRAD, INRAP, Montpellier, France
- Laboratory Biodiversity, Ecology and Genome. Research Centre Plant and Microbial Biotechnology, Biodiversity and Environment, Faculty of Sciences, Mohammed V University, Rabat, Morocco
| | - Auguste Chocha Manda
- Unité de recherche en Biodiversité et Exploitation durable des Zones Humides (BEZHU), Faculté des Sciences Agronomiques, Université de Lubumbashi, Lubumbashi, Democratic Republic of the Congo
| | - Emmanuel Vreven
- Laboratory of Biodiversity and Evolutionary Genomics, Department of Biology, University of Leuven, Leuven, Belgium
- Ichthyology Section, Zoology Department, Royal Museum of Central Africa, Tervuren, Belgium
| | - Tine Huyse
- Department of Biology, Royal Museum of Central Africa, Tervuren, Belgium
| | - Tom Artois
- Research Group Zoology: Biodiversity and Toxicology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
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13
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Dos Santos QM, Maina JN, Avenant-Oldewage A. Gyrodactylus magadiensis n. sp. (Monogenea, Gyrodactylidae) parasitising the gills of Alcolapia grahami (Perciformes, Cichlidae), a fish inhabiting the extreme environment of Lake Magadi, Kenya. ACTA ACUST UNITED AC 2019; 26:76. [PMID: 31859621 PMCID: PMC6924288 DOI: 10.1051/parasite/2019077] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 12/06/2019] [Indexed: 11/14/2022]
Abstract
A new species of Gyrodactylus von Nordmann, 1832 is described from the gills of Alcolapia grahami, a tilapian fish endemic to Lake Magadi. This alkaline soda lake in the Rift Valley in Kenya is an extreme environment with pH as high as 11, temperatures up to 42 °C, and diurnal fluctuation between hyperoxia and virtual anoxia. Nevertheless, gyrodactylid monogeneans able to survive these hostile conditions were detected from the gills the Magadi tilapia. The worms were studied using light microscopy, isolated sclerites observed using scanning electron microscopy, and molecular techniques used to genetically characterize the specimens. The gyrodactylid was described as Gyrodactylus magadiensis n. sp. and could be distinguished from other Gyrodactylus species infecting African cichlid fish based on the comparatively long and narrow hamuli, a ventral bar with small rounded anterolateral processes and a tongue-shaped posterior membrane, and marginal hooks with slender sickles which are angled forward, a trapezoid to square toe, rounded heel, a long bridge prior to reaching marginal sickle shaft, and a long lateral edge of the toe. The species is also distinct from all other Gyrodactylus taxa based on the ITS region of rDNA (ITS1-5.8s-ITS2), strongly supporting the designation of a new species. These findings represent the second record of Gyrodactylus from Kenya, with the description of G. magadiensis bringing the total number of Gyrodactylus species described from African cichlids to 18.
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Affiliation(s)
- Quinton Marco Dos Santos
- Department of Zoology, University of Johannesburg, PO Box 524, Auckland Park, 2006 Johannesburg, South Africa
| | - John Ndegwa Maina
- Department of Zoology, University of Johannesburg, PO Box 524, Auckland Park, 2006 Johannesburg, South Africa
| | - Annemariè Avenant-Oldewage
- Department of Zoology, University of Johannesburg, PO Box 524, Auckland Park, 2006 Johannesburg, South Africa
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14
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Jorissen MWP, Pariselle A, Huyse T, Vreven EJ, Snoeks J, Decru E, Kusters T, Lunkayilakio SW, Bukinga FM, Artois T, Vanhove MPM. Six new dactylogyrid species (Platyhelminthes, Monogenea) from the gills of cichlids (Teleostei, Cichliformes) from the Lower Congo Basin. ACTA ACUST UNITED AC 2018; 25:64. [PMID: 30526819 PMCID: PMC6284406 DOI: 10.1051/parasite/2018059] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 11/04/2018] [Indexed: 11/15/2022]
Abstract
The Lower Congo Basin is characterized by a mangrove-lined estuary at its mouth and, further upstream, by many hydrogeographical barriers such as rapids and narrow gorges. Five localities in the mangroves and four from (upstream) left bank tributaries or pools were sampled. On the gills of Coptodon tholloni, Coptodon rendalli, Hemichromis elongatus, Hemichromis stellifer and Tylochromis praecox, 17 species of parasites (Dactylogyridae & Gyrodactylidae, Monogenea) were found, eight of which are new to science. Six of these are herein described: Cichlidogyrus bixlerzavalai n. sp. and Cichlidogyrus omari n. sp. from T. praecox, Cichlidogyrus calycinus n. sp. and Cichlidogyrus polyenso n. sp. from H. elongatus, Cichlidogyrus kmentovae n. sp. from H. stellifer and Onchobdella ximenae n. sp. from both species of Hemichromis. On Cichlidogyrus reversati a ridge on the accessory piece was discovered that connects to the basal bulb of the penis. We report a putative spillback effect of the native parasites Cichlidogyrus berradae, Cichlidogyrus cubitus and Cichlidogyrus flexicolpos from C. tholloni to the introduced C. rendalli. From our results, we note that the parasite fauna of Lower Congo has a higher affinity with the fauna of West African and nearby freshwater ecoregions than it has with fauna of other regions of the Congo Basin and Central Africa.
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Affiliation(s)
- Michiel W P Jorissen
- Research Group Zoology: Biodiversity, & Toxicology, Centre for Environmental Sciences, Hasselt University, Agoralaan gebouw D, 3590 Diepenbeek, Belgium - Royal Museum for Central Africa, Leuvensesteenweg 13, 3080 Tervuren, Belgium
| | | | - Tine Huyse
- Royal Museum for Central Africa, Leuvensesteenweg 13, 3080 Tervuren, Belgium - Laboratory of Biodiversity and Evolutionary Genomics, University of Leuven, Charles Deberiotstraat 42, 3000 Leuven, Belgium
| | - Emmanuel J Vreven
- Royal Museum for Central Africa, Leuvensesteenweg 13, 3080 Tervuren, Belgium - Laboratory of Biodiversity and Evolutionary Genomics, University of Leuven, Charles Deberiotstraat 42, 3000 Leuven, Belgium
| | - Jos Snoeks
- Royal Museum for Central Africa, Leuvensesteenweg 13, 3080 Tervuren, Belgium - Laboratory of Biodiversity and Evolutionary Genomics, University of Leuven, Charles Deberiotstraat 42, 3000 Leuven, Belgium
| | - Eva Decru
- Royal Museum for Central Africa, Leuvensesteenweg 13, 3080 Tervuren, Belgium - Laboratory of Biodiversity and Evolutionary Genomics, University of Leuven, Charles Deberiotstraat 42, 3000 Leuven, Belgium
| | - Thomas Kusters
- Research Group Zoology: Biodiversity, & Toxicology, Centre for Environmental Sciences, Hasselt University, Agoralaan gebouw D, 3590 Diepenbeek, Belgium
| | | | | | - Tom Artois
- Research Group Zoology: Biodiversity, & Toxicology, Centre for Environmental Sciences, Hasselt University, Agoralaan gebouw D, 3590 Diepenbeek, Belgium
| | - Maarten P M Vanhove
- Research Group Zoology: Biodiversity, & Toxicology, Centre for Environmental Sciences, Hasselt University, Agoralaan gebouw D, 3590 Diepenbeek, Belgium - Laboratory of Biodiversity and Evolutionary Genomics, University of Leuven, Charles Deberiotstraat 42, 3000 Leuven, Belgium - Department of Botany and Zoology, Faculty of Science, Masaryk University, Kamenice 735/5, 625 00 Brno, Czech Republic - Zoology Unit, Finnish Museum of Natural History, University of Helsinki, Pohjoinen Rautatiekatu 13, 00100 Helsinki, Finland
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15
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Rahmouni C, Vanhove MPM, Šimková A. Seven new species of Cichlidogyrus Paperna, 1960 (Monogenea: Dactylogyridae) parasitizing the gills of Congolese cichlids from northern Lake Tanganyika. PeerJ 2018; 6:e5604. [PMID: 30370182 PMCID: PMC6202960 DOI: 10.7717/peerj.5604] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 08/16/2018] [Indexed: 12/30/2022] Open
Abstract
Seven new species of Cichlidogyrus Paperna, 1960 (Monogenea: Dactylogyridae) isolated from the gills of six cichlid host species belonging to four tribes and sampled from the Congolese coastline of Lake Tanganyika (LT) are described: Cichlidogyrus adkoningsi sp. nov. from Cyphotilapia frontosa (tribe Cyphotilapiini); C. koblmuelleri sp. nov. from Cardiopharynx schoutedeni (Ectodini); C. habluetzeli sp. nov. from C. schoutedeni and C. frontosa; C. antoineparisellei sp. nov. from Interochromis loocki (Tropheini); C. masilyai sp. nov. from Petrochromis orthognathus (Tropheini); C. salzburgeri sp. nov. from P. trewavasae, and C. sergemorandi sp. nov. from Tylochromis polylepis (Tylochromini). This study represents the first parasitological examination of cyphotilapiine cichlid hosts. Representatives of the Tanganyikan ectodine, tropheine, and tylochromine cichlids previously sampled from various localities in the lake yielded nine, twelve, and two described species of Cichlidogyrus, respectively. The study further includes a morphological characterization of the male copulatory organ of six undescribed species of Cichlidogyrus found on the gills of the tropheines I. loocki and P. orthognathus, and on those of Callochromis melanostigma and Xenotilapia flavipinnis (both Ectodini). Geographical variation in the monogenean fauna of I. loocki was observed. The most closely related cichlid species investigated in this study harboured Cichlidogyrus spp. exhibiting some similarities in their sclerotized structures. Thus, our paper provides additional evidence of the high species richness of Cichlidogyrus and the link with their hosts’s phylogenetic affinities in LT.
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Affiliation(s)
- Chahrazed Rahmouni
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Maarten P M Vanhove
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno, Czech Republic.,Zoology Unit, Finnish Museum of Natural History, University of Helsinki, Helsinki, Finland.,Laboratory of Biodiversity and Evolutionary Genomics, Department of Biology, University of Leuven, Leuven, Belgium.,Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, Universiteit Hasselt, Diepenbeek, Belgium
| | - Andrea Šimková
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno, Czech Republic
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16
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Šimková A, Řehulková E, Rasoloariniaina JR, Jorissen MWP, Scholz T, Faltýnková A, Mašová Š, Vanhove MPM. Transmission of parasites from introduced tilapias: a new threat to endemic Malagasy ichthyofauna. Biol Invasions 2018. [DOI: 10.1007/s10530-018-1859-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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17
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Vanhove MPM, Briscoe AG, Jorissen MWP, Littlewood DTJ, Huyse T. The first next-generation sequencing approach to the mitochondrial phylogeny of African monogenean parasites (Platyhelminthes: Gyrodactylidae and Dactylogyridae). BMC Genomics 2018; 19:520. [PMID: 29973152 PMCID: PMC6032552 DOI: 10.1186/s12864-018-4893-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 06/21/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Monogenean flatworms are the main ectoparasites of fishes. Representatives of the species-rich families Gyrodactylidae and Dactylogyridae, especially those infecting cichlid fishes and clariid catfishes, are important parasites in African aquaculture, even more so due to the massive anthropogenic translocation of their hosts worldwide. Several questions on their evolution, such as the phylogenetic position of Macrogyrodactylus and the highly speciose Gyrodactylus, remain unresolved with available molecular markers. Also, diagnostics and population-level research would benefit from the development of higher-resolution genetic markers. We aim to offer genetic resources for work on African monogeneans by providing mitogenomic data of four species (two belonging to Gyrodactylidae, two to Dactylogyridae), and analysing their gene sequences and gene order from a phylogenetic perspective. RESULTS Using Illumina technology, the first four mitochondrial genomes of African monogeneans were assembled and annotated for the cichlid parasites Gyrodactylus nyanzae, Cichlidogyrus halli, Cichlidogyrus mbirizei (near-complete mitogenome) and the catfish parasite Macrogyrodactylus karibae (near-complete mitogenome). Complete nuclear ribosomal operons were also retrieved, as molecular vouchers. The start codon TTG is new for Gyrodactylus and for Dactylogyridae, as is the incomplete stop codon TA for Dactylogyridae. Especially the nad2 gene is promising for primer development. Gene order was identical for protein-coding genes and differed between the African representatives of these families only in a tRNA gene transposition. A mitochondrial phylogeny based on an alignment of nearly 12,500 bp including 12 protein-coding and two ribosomal RNA genes confirms that the Neotropical oviparous Aglaiogyrodactylus forficulatus takes a sister group position with respect to the other gyrodactylids, instead of the supposedly 'primitive' African Macrogyrodactylus. Inclusion of the African Gyrodactylus nyanzae confirms the paraphyly of Gyrodactylus. The position of the African dactylogyrid Cichlidogyrus is unresolved, although gene order suggests it is closely related to marine ancyrocephalines. CONCLUSIONS The amount of mitogenomic data available for gyrodactylids and dactylogyrids is increased by roughly one-third. Our study underscores the potential of mitochondrial genes and gene order in flatworm phylogenetics, and of next-generation sequencing for marker development for these non-model helminths for which few primers are available.
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Affiliation(s)
- Maarten P. M. Vanhove
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlářská 2, CZ-611 37 Brno, Czech Republic
- Zoology Unit, Finnish Museum of Natural History, University of Helsinki, P.O.Box 17, FI-00014 Helsinki, Finland
- Centre for Environmental Sciences, Research Group Zoology: Biodiversity & Toxicology, Hasselt University, Agoralaan Gebouw D, B-3590 Diepenbeek, Belgium
- Laboratory of Biodiversity and Evolutionary Genomics, Department of Biology, University of Leuven, Ch. Deberiotstraat 32, B-3000 Leuven, Belgium
- Biology Department, Royal Museum for Central Africa, Leuvensesteenweg 13, B-3080 Tervuren, Belgium
| | - Andrew G. Briscoe
- Department of Life Sciences, Natural History Museum, Cromwell Road, London, SW7 5BD UK
| | - Michiel W. P. Jorissen
- Centre for Environmental Sciences, Research Group Zoology: Biodiversity & Toxicology, Hasselt University, Agoralaan Gebouw D, B-3590 Diepenbeek, Belgium
- Biology Department, Royal Museum for Central Africa, Leuvensesteenweg 13, B-3080 Tervuren, Belgium
| | - D. Tim J. Littlewood
- Department of Life Sciences, Natural History Museum, Cromwell Road, London, SW7 5BD UK
| | - Tine Huyse
- Laboratory of Biodiversity and Evolutionary Genomics, Department of Biology, University of Leuven, Ch. Deberiotstraat 32, B-3000 Leuven, Belgium
- Biology Department, Royal Museum for Central Africa, Leuvensesteenweg 13, B-3080 Tervuren, Belgium
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18
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Rahmouni C, Vanhove MPM, Šimková A. Underexplored diversity of gill monogeneans in cichlids from Lake Tanganyika: eight new species of Cichlidogyrus Paperna, 1960 (Monogenea: Dactylogyridae) from the northern basin of the lake, with remarks on the vagina and the heel of the male copulatory organ. Parasit Vectors 2017; 10:591. [PMID: 29197419 PMCID: PMC5712084 DOI: 10.1186/s13071-017-2460-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Accepted: 10/09/2017] [Indexed: 11/17/2022] Open
Abstract
Background Lake Tanganyika harbours the most diverse cichlid assemblage of the Great African Lakes. Considering its cichlid flocks consist of approximately 250 endemic species, we can hypothesize a high species-richness in their often quite host-specific monogenean ectoparasites belonging to Cichlidogyrus Paperna, 1960. Yet, only 24 species were described from Tanganyikan hosts and some host tribes have never been investigated for monogeneans. This study presents the first parasitological examination of species of the tribes Cyprichromini (Cyprichromis microlepidotus (Poll, 1956)), Eretmodini (Eretmodus marksmithi Burgess, 2012 and Tanganicodus irsacae Poll, 1950) and Ectodini (Aulonocranus dewindti (Boulenger, 1899)). Specimens of the ectodine Ophthalmotilapia nasuta (Poll & Matthes, 1962) from which four Cichlidogyrus spp. have been previously described from more southern localities were also studied. Further, we discuss the haptor configuration in Tanganyikan Cichlidogyrus spp. and highlight the morphological diversity of the vagina, and that of the heel, a sclerotized part of the male copulatory organ, absent in some species of Cichlidogyrus. Methods Cichlidogyrus spp. were isolated from gills and fixed using GAP. Haptoral and genital hard parts were measured and drawn by means of a phase contrast microscopic examination. Results We describe eight new species: Cichlidogyrus milangelnari n. sp. on C. microlepidotus; C. jeanloujustinei n. sp. on E. marksmithi; C. evikae n. sp. on T. irsacae; C. aspiralis n. sp., C. glacicremoratus n. sp. and C. rectangulus n. sp. on O. nasuta; and C. pseudoaspiralis n. sp. and C. discophonum n. sp. on A. dewindti. Three haptoral morphotypes were recognized among the new species. Species of Cichlidogyrus from closely related hosts exhibited the same morphotypes. Geographical variation in Cichlidogyrus spp. fauna as observed in O. nasuta and three morphotypes were distinguished. Finally, we listed 111 Cichlidogyrus species, of which 27 and three Tanganyikan species lack sclerotized vagina and heel, respectively, just like 19 and seven species outside of the lake. Conclusions Haptoral and genital features in the Tanganyikan Cichlidogyrus fauna reflect the phylogenetic relationships of their cichlid hosts. It seems that several lineages of Cichlidogyrus spp. exist in Lake Tanganyika but further studies are necessary to confirm this hypothesis and answer questions related to Lake Tanganyika and its cichlids. Electronic supplementary material The online version of this article (10.1186/s13071-017-2460-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Chahrazed Rahmouni
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlářská 2, CZ-611 37, Brno, Czech Republic.
| | - Maarten P M Vanhove
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlářská 2, CZ-611 37, Brno, Czech Republic.,Capacities for Biodiversity and Sustainable Development (CEBioS), Operational Directorate Natural Environment, Royal Belgian Institute of Natural Sciences, Vautierstraat 29, B-1000, Brussels, Belgium.,Laboratory of Biodiversity and Evolutionary Genomics, Department of Biology, University of Leuven, Charles Deberiotstraat 32, B-3000, Leuven, Belgium.,Centre for Environmental Sciences, Research Group Zoology: Biodiversity & Toxicology, Hasselt University, Agoralaan Gebouw D, B-3590, Diepenbeek, Belgium
| | - Andrea Šimková
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlářská 2, CZ-611 37, Brno, Czech Republic
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