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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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Matos I, Silva D, Oliveira J, Gonçalves C, Alves R, Pereira N, Catarino F, Ameixa OMCC, Sousa JA, Rangel LF, Santos MJ, Ayra‐Pardo C. Body size-dependent effects on the distribution patterns of phoretic mite species assemblages on Rhynchophorus ferrugineus (Olivier, 1790). Ecol Evol 2023; 13:e10338. [PMID: 37475727 PMCID: PMC10353919 DOI: 10.1002/ece3.10338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 06/20/2023] [Accepted: 06/29/2023] [Indexed: 07/22/2023] Open
Abstract
Phoretic mites attach to different body parts of the red palm weevil (RPW), Rhynchophorus ferrugineus (Olivier, 1790), to disperse. However, the question of how the patterns of attachment sites are formed remains intriguing. Here, we examined RPW-associated phoretic mites in four districts in Northern Portugal (macrohabitat), and investigated the patterns of mite distribution on six body parts of RPW (microhabitat). At the macrohabitat level, we detected seven phoretic mite taxa using the RPW host in each of the four studied districts, all documented for the first time in association with this invasive exotic species in Portugal. However, their relative abundance (species evenness) varied between districts, as did species diversity. All examined weevils carried mites, and the prevalence of the different taxa did not differ between districts or sex of weevils. Measured by mean abundance and degree of aggregation, Centrouropoda sp. proved to be the dominant taxon, while Acarus sp. and Curculanoetus rhynchophorus were considered common subordinate taxa and Uroovobella sp., Mesostigmata, Nenteria extremica and Dendrolaelaps sp. sparse taxa. At the microhabitat level, all taxa were present on all body parts of the RPW; the highest abundance was in a region encompassing the inner surface of the elytra and the membranous hind wings (subelytral space). Analysis of niche overlap revealed that the distribution patterns of phoretic mite taxa on the RPW were not randomly structured. In the subelytral space, interspecific coexistence of mites increased as a function of body size difference with the dominant Centrouropoda sp. We found that in the subelytral space the large dominant species Centrouropoda sp. displaced the larger species Uroobovella sp. and the similarly sized species Nenteria extremica, but coexisted with smaller taxa.
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Affiliation(s)
- Inês Matos
- CIIMAR – Interdisciplinary Center of Marine and Environmental Research, Terminal de Cruzeiros do Porto de LeixõesUniversity of PortoMatosinhosPortugal
- Centre for Environmental and Marine Studies (CESAM), Department of BiologyUniversity of AveiroAveiroPortugal
| | - Diogo Silva
- CIIMAR – Biology Department, Faculty of SciencesUniversity of PortoPortoPortugal
| | - João Oliveira
- CIIMAR – Biology Department, Faculty of SciencesUniversity of PortoPortoPortugal
| | - Claúdia Gonçalves
- CIIMAR – Biology Department, Faculty of SciencesUniversity of PortoPortoPortugal
| | - Rita Alves
- CIIMAR – Biology Department, Faculty of SciencesUniversity of PortoPortoPortugal
| | - Nuno Pereira
- CIIMAR – Biology Department, Faculty of SciencesUniversity of PortoPortoPortugal
| | - Francisco Catarino
- CIIMAR – Biology Department, Faculty of SciencesUniversity of PortoPortoPortugal
| | - Olga M. C. C. Ameixa
- Centre for Environmental and Marine Studies (CESAM), Department of BiologyUniversity of AveiroAveiroPortugal
| | - José Américo Sousa
- CIIMAR – Interdisciplinary Center of Marine and Environmental Research, Terminal de Cruzeiros do Porto de LeixõesUniversity of PortoMatosinhosPortugal
- CIIMAR – Biology Department, Faculty of SciencesUniversity of PortoPortoPortugal
| | - Luis Filipe Rangel
- CIIMAR – Interdisciplinary Center of Marine and Environmental Research, Terminal de Cruzeiros do Porto de LeixõesUniversity of PortoMatosinhosPortugal
| | - Maria João Santos
- CIIMAR – Interdisciplinary Center of Marine and Environmental Research, Terminal de Cruzeiros do Porto de LeixõesUniversity of PortoMatosinhosPortugal
- CIIMAR – Biology Department, Faculty of SciencesUniversity of PortoPortoPortugal
| | - Camilo Ayra‐Pardo
- CIIMAR – Interdisciplinary Center of Marine and Environmental Research, Terminal de Cruzeiros do Porto de LeixõesUniversity of PortoMatosinhosPortugal
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3
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Wang L, Ren J, Zheng X. Morphological and molecular analysis of Aggregata aspera n. sp. (Apicomplexa: Aggregatidae) in Amphioctopus ovulum and Amphioctopus marginatus (Mollusca: Cephalopoda) from the Western Pacific Ocean. Eur J Protistol 2023; 88:125957. [PMID: 36966680 DOI: 10.1016/j.ejop.2023.125957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 01/20/2023] [Accepted: 01/28/2023] [Indexed: 02/05/2023]
Abstract
Aggregata Frenzel, 1885 (Apicomplexa) are dangerous protozoan parasites that cause malabsorption syndrome in wild and reared cephalopod species, resulting in significant economic loss to fishery and aquaculture industries. The new parasitic species, Aggregata aspera n. sp., in the digestive tract of Amphioctopus ovulum and Amphioctopus marginatus from an area in the Western Pacific Ocean was identified, it is the second two-host parasite species of Aggregata. Mature oocysts and sporocysts were spherical to ovoid in shape. Sporulated oocysts were 380.6-1,158.4 μm in length and 284.0-1,090.6 μm in width. The mature sporocysts were 16.2-18.3 μm in length and 15.7-17.6 μm in width, with irregular protuberances on the lateral wall of the sporocysts. Sporozoites within mature sporocysts were curled in shape and measured 13.0-17.0 μm in length and 1.6-2.4 μm in width. Each sporocyst contained 12-16 sporozoites. Phylogenetic tree analysis, based on 18S rRNA gene partial sequences, indicated that Ag. aspera forms a monophyletic cluster within the genus Aggregata and has a sister relationship with Ag. sinensis. These findings will provide the theoretical basis for the histopathology and diagnosis of coccidiosis in cephalopods.
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Affiliation(s)
- Lihua Wang
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China; Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China
| | - Jing Ren
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China; Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China
| | - Xiaodong Zheng
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China; Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China.
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4
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Thys KJM, Vanhove MPM, Custers JWJ, Vranken N, Van Steenberge M, Kmentová N. Co-introduction of Dolicirroplectanum lacustre, a monogenean gill parasite of the invasive Nile perch Lates niloticus: intraspecific diversification and mitonuclear discordance in native versus introduced areas. Int J Parasitol 2022; 52:775-786. [PMID: 36228748 DOI: 10.1016/j.ijpara.2022.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 08/30/2022] [Accepted: 09/01/2022] [Indexed: 11/05/2022]
Abstract
The Nile perch (Lates niloticus) is a notorious invasive species. The introductions of Nile perch into several lakes and rivers in the Lake Victoria region led to the impoverishment of trophic food webs, particularly well documented in Lake Victoria. Additionally, its parasites were co-introduced, including Dolicirroplectanum lacustre (Monogenea, Diplectanidae). Dolicirroplectanum lacustre is the single monogenean gill parasite of latid fishes (Lates spp.) inhabiting several major African freshwater systems. We examined the intra-specific diversification of D. lacustre from Lates niloticus in Lake Albert, Uganda (native range) and Lake Victoria (introduced range) by assessing morphological and genetic differentiation, and microhabitat preference. We expected reduced morphological and genetic diversity for D. lacustre in Lake Victoria compared with Lake Albert, as a result of the historical introductions. We found that D. lacustre displayed high morphological variability within and between African freshwaters, with two morphotypes identified, as in former studies. The single shared morphotype between Lake Albert and Lake Victoria displayed similar levels of haplotype and nucleotide diversity between the lakes. Mitonuclear discordance within the morphotypes of D. lacustre indicates an incomplete reproductive barrier between the morphotypes. The diversification in the mitochondrial gene portion is directly linked with the morphotypes, while the nuclear gene portions indicate conspecificity. Based on our results, we reported reduced genetic and morphological diversity, potentially being a result of a founder effect in Lake Victoria.
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Affiliation(s)
- Kelly J M Thys
- Research Group Zoology: Biodiversity and Toxicology, Centre for Environmental Sciences, Hasselt University, Agoralaan Gebouw D, B-3590 Diepenbeek, Belgium.
| | - Maarten P M Vanhove
- Research Group Zoology: Biodiversity and Toxicology, Centre for Environmental Sciences, Hasselt University, Agoralaan Gebouw D, B-3590 Diepenbeek, Belgium
| | - Jonas W J Custers
- Utrecht University, Department of Biology, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Nathan Vranken
- KU Leuven, Laboratory of Biodiversity and Evolutionary Genomics, Department of Biology, Charles Deberiotstraat 32, 3000 Leuven, Belgium; Royal Museum for Central Africa, Biology Department, Section Vertebrates, Leuvensesteenweg 13, 3080 Tervuren, Belgium
| | - Maarten Van Steenberge
- Research Group Zoology: Biodiversity and Toxicology, Centre for Environmental Sciences, Hasselt University, Agoralaan Gebouw D, B-3590 Diepenbeek, Belgium; Operational Directorate Taxonomy and Phylogeny, Royal Belgian Institute for Natural Sciences, Vautierstraat 29, B-1000 Brussels, Belgium
| | - Nikol Kmentová
- Research Group Zoology: Biodiversity and Toxicology, Centre for Environmental Sciences, Hasselt University, Agoralaan Gebouw D, B-3590 Diepenbeek, Belgium
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5
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Tavares-Dias M, Silva LMA, Oliveira MSB. Geographic range, distribution patterns and interactions of Monogenea Van Beneden 1858, with species of native host freshwater fishes from Brazil. REVISTA BRASILEIRA DE PARASITOLOGIA VETERINARIA = BRAZILIAN JOURNAL OF VETERINARY PARASITOLOGY : ORGAO OFICIAL DO COLEGIO BRASILEIRO DE PARASITOLOGIA VETERINARIA 2022; 31:e005722. [PMID: 36000679 DOI: 10.1590/s1984-29612022048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 08/04/2022] [Indexed: 06/15/2023]
Abstract
This paper investigated information on monogenean species using 312 scientific papers, to search for infection and geographic distribution patterns in native freshwater fish from Brazil. We used 1,698 samples of 296 fish species of 28 families distributed into Characiformes, Siluriformes, Cichliformes, Gymnotiformes, Perciformes, Mugiliformes, Osteoglossiformes and Clupeiformes, in addition to four hybrid fish. Among the hosts of the different orders and families, the greatest numbers of parasite-host associations were found for species of the families Serrasalmidae, Characidae, Loricariidae, Curimatidae and Anostomidae. The 578 species of monogeneans used in parasite-host interactions were distributed in 86 genera of six five families (Dactylogyridae, Gyrodactylidae, Diplectanidae, Microcotylidae, Ancylodiscoididae and Ancyrocephalidae), but with great predominance of Dactylogyridae species. There was variation in prevalence, intensity and abundance levels of monogeneans species among host fish species, as well as in infection sites that occurred predominantly in external organs. Positive correlations of prevalence, intensity and abundance with body length of hosts were observed. There was geographic distribution pattern of monogeneans limited mostly to two hydrographic basins those being the Amazon River and Paraná River. Just approximately 6% of potential monogeneans have been explored thus far, showing a clear need for further studies on this interesting group of parasites.
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Affiliation(s)
- Marcos Tavares-Dias
- Embrapa Amapá, Macapá, AP, Brasil
- Programa de Pós-Graduação em Biodiversidade Tropical - PPGBio, Universidade Federal do Amapá - UNIFAP, Macapá, AP, Brasil
| | - Luís Mauricio Abdon Silva
- Núcleo de Pesquisas Aquáticas - NUPAq, Instituto de Pesquisas Científicas e Tecnológicas do Estado do Amapá - IEPA, Macapá, AP, Brasil
| | - Marcos Sidney Brito Oliveira
- Programa de Pós-Graduação em Biodiversidade Tropical - PPGBio, Universidade Federal do Amapá - UNIFAP, Macapá, AP, Brasil
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6
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Oliveira MSB, Prestes L, Adriano EA, Tavares-Dias M. Morphological and functional structure of two Ergasilidae parasites determine their microhabitat affinity on the gills of an Anostomidae fish from the Amazon. Parasitol Res 2022; 121:2295-2305. [PMID: 35705719 DOI: 10.1007/s00436-022-07569-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 06/02/2022] [Indexed: 11/28/2022]
Abstract
The aim of this study was to investigate the microhabitat affinities of Ergasilus sp. and Therodamas longicollum on the gills of Leporinus fasciatus ("aracu-piau"), an anostomid fish from the Amazon. A total of 143 specimens of L. fasciatus were examined, of which 35% had their gills parasitized by at least one ergasilid species. A total of 159 specimens of Ergasilus sp. and 97 specimens of T. longicollum were recovered. Both ergasilids species exhibited a greater affinity for attachment in arch 1 of the gills of the host. There was a negative correlation between the abundance of Ergasilus sp. and the abundance of T. longicollum within each gill arch. Analysis of distribution along the gill arch showed a higher occurrence of Ergasilus sp. in Section 5, while T. longicollum occurred mainly in Section 3 of the gills. There was a positive correlation between the abundance of these ectoparasites and the size of the gill arch. Ergasilus sp. occurred only on the filament of the gill arch and exhibited affinity for the proximal region, while T. longicollum occurred only in the gill arch itself. The results reveal that these two parasite species compete in the gills of the host without the overlapping of their niches.
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Affiliation(s)
- Marcos S B Oliveira
- Programa de Pós-Graduação em Biodiversidade Tropical (PPGBio), Universidade Federal do Amapá (UNIFAP), Macapá, Amapá, Brazil.
| | - Luiza Prestes
- Grupo de Pesquisa em Ecologia e Manejo de Organismos e Ambientes Aquáticos (EMOA), Universidade do Estado do Amapá (UEAP), Macapá, Amapá, Brazil
| | - Edson A Adriano
- Departmento de Ecologia e Biologia Evolutiva, Universidade Federal de São Paulo (UNIFESP), Diadema, São Paulo, Brazil.,Departamento de Biologia Animal, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, Brazil
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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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Experimental evidence that host choice by parasites is age-dependent in a fish-monogenean system. Parasitol Res 2021; 121:115-126. [PMID: 34755222 DOI: 10.1007/s00436-021-07356-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Accepted: 10/19/2021] [Indexed: 10/19/2022]
Abstract
Host age is known to influence the risk of parasite infection, but there is very little experimental evidence on whether parasites show preference towards potential hosts of a specific age. To investigate how host age affects host choice by parasites, we used the Nile tilapia (Oreochromis niloticus) as a fish parasite model and manipulated its gill ectoparasitic monogeneans in mesocosm experiments. Our experimental setting combined three age classes (juvenile, subadult, and adult) of both infected donor hosts and uninfected potential target hosts assigned to each treatment. We predicted that adult target hosts would be more susceptible to parasites than juveniles and adults because they represent high-quality habitat patches. Contrary to our prediction, we found that subadults were more susceptible to parasites than juvenile and adult target hosts. Our models confirmed that variation in target host age influenced parasite choice, suggesting that subadults might represent the most favourable option for parasites regarding a balance between host quality and susceptibility. We provide experimental evidence that host choice by parasites is age-dependent, and that this life-history trait can play a major role in structuring parasite populations.
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9
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Brian JI, Aldridge DC. Both presence-absence and abundance models provide important and different information about parasite infracommunities. Parasitol Res 2021; 120:3933-3937. [PMID: 34599361 DOI: 10.1007/s00436-021-07327-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 09/20/2021] [Indexed: 11/25/2022]
Affiliation(s)
- Joshua I Brian
- Aquatic Ecology Group, The David Attenborough Building, Department of Zoology, University of Cambridge, Cambridge, CB2 3QZ, UK.
| | - David C Aldridge
- Aquatic Ecology Group, The David Attenborough Building, Department of Zoology, University of Cambridge, Cambridge, CB2 3QZ, UK
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