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Mioduchowska M, Konecka E, Gołdyn B, Pinceel T, Brendonck L, Lukić D, Kaczmarek Ł, Namiotko T, Zając K, Zając T, Jastrzębski JP, Bartoszek K. Playing Peekaboo with a Master Manipulator: Metagenetic Detection and Phylogenetic Analysis of Wolbachia Supergroups in Freshwater Invertebrates. Int J Mol Sci 2023; 24:ijms24119400. [PMID: 37298356 DOI: 10.3390/ijms24119400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 05/21/2023] [Accepted: 05/25/2023] [Indexed: 06/12/2023] Open
Abstract
The infamous "master manipulators"-intracellular bacteria of the genus Wolbachia-infect a broad range of phylogenetically diverse invertebrate hosts in terrestrial ecosystems. Wolbachia has an important impact on the ecology and evolution of their host with documented effects including induced parthenogenesis, male killing, feminization, and cytoplasmic incompatibility. Nonetheless, data on Wolbachia infections in non-terrestrial invertebrates are scarce. Sampling bias and methodological limitations are some of the reasons limiting the detection of these bacteria in aquatic organisms. In this study, we present a new metagenetic method for detecting the co-occurrence of different Wolbachia strains in freshwater invertebrates host species, i.e., freshwater Arthropoda (Crustacea), Mollusca (Bivalvia), and water bears (Tardigrada) by applying NGS primers designed by us and a Python script that allows the identification of Wolbachia target sequences from the microbiome communities. We also compare the results obtained using the commonly applied NGS primers and the Sanger sequencing approach. Finally, we describe three supergroups of Wolbachia: (i) a new supergroup V identified in Crustacea and Bivalvia hosts; (ii) supergroup A identified in Crustacea, Bivalvia, and Eutardigrada hosts, and (iii) supergroup E infection in the Crustacea host microbiome community.
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Affiliation(s)
- Monika Mioduchowska
- Department of Evolutionary Genetics and Biosystematics, Faculty of Biology, University of Gdansk, 80-308 Gdańsk, Poland
- Department of Invertebrate Zoology and Hydrobiology, Faculty of Biology and Environmental Protection, University of Lodz, 90-237 Łódź, Poland
- Department of Marine Plankton Research, Institute of Oceanography, University of Gdansk, 81-378 Gdynia, Poland
| | - Edyta Konecka
- Department of Microbiology, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University in Poznan, 61-614 Poznań, Poland
| | - Bartłomiej Gołdyn
- Department of General Zoology, Institute of Environmental Biology, Faculty of Biology, Adam Mickiewicz University in Poznan, 61-614 Poznań, Poland
| | - Tom Pinceel
- Animal Ecology, Global Change and Sustainable Development, KU Leuven, 3000 Leuven, Belgium
- Centre for Environmental Management, University of the Free State, Potchefstroom 2520, South Africa
- Community Ecology Laboratory, Department of Biology, Vrije Universiteit Brussel (VUB), 1050 Brussels, Belgium
| | - Luc Brendonck
- Animal Ecology, Global Change and Sustainable Development, KU Leuven, 3000 Leuven, Belgium
- Water Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom 2531, South Africa
| | - Dunja Lukić
- Department of Wetland Ecology, Estación Biológica de Doñana-CSIC, 41092 Sevilla, Spain
| | - Łukasz Kaczmarek
- Department of Animal Taxonomy and Ecology, Faculty of Biology, Adam Mickiewicz University in Poznan, 61-614 Poznań, Poland
| | - Tadeusz Namiotko
- Department of Evolutionary Genetics and Biosystematics, Faculty of Biology, University of Gdansk, 80-308 Gdańsk, Poland
| | - Katarzyna Zając
- Institute of Nature Conservation, Polish Academy of Sciences, 31-120 Kraków, Poland
| | - Tadeusz Zając
- Institute of Nature Conservation, Polish Academy of Sciences, 31-120 Kraków, Poland
| | - Jan P Jastrzębski
- Department of Plant Physiology, Genetics and Biotechnology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland
- Genetics and Biotechnology, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland
| | - Krzysztof Bartoszek
- Department of Computer and Information Science, Division of Statistics and Machine Learning, Linköping University, SE-581 83 Linköping, Sweden
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Iepure S, Wysocka A, Sarbu SM, Kijowska M, Namiotko T. A new extremophile ostracod crustacean from the Movile Cave sulfidic chemoautotrophic ecosystem in Romania. Sci Rep 2023; 13:6112. [PMID: 37059813 PMCID: PMC10104858 DOI: 10.1038/s41598-023-32573-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 03/29/2023] [Indexed: 04/16/2023] Open
Abstract
Sulfidic cave ecosystems are remarkable evolutionary hotspots that have witnessed adaptive radiation of their fauna represented by extremophile species having particular traits. Ostracods, a very old group of crustaceans, exhibit specific morphological and ecophysiological features that enable them to thrive in groundwater sulfidic environments. Herein, we report a peculiar new ostracod species Pseudocandona movilaensis sp. nov. thriving in the chemoautotrophic sulfidic groundwater ecosystem of Movile Cave (Romania). The new species displays a set of homoplastic features specific for unrelated stygobitic species, e.g., triangular carapace in lateral view with reduced postero-dorsal part and simplification of limb chaetotaxy (i.e., loss of some claws and reduction of secondary male sex characteristics), driven by a convergent or parallel evolution during or after colonization of the groundwater realm. P. movilaensis sp. nov. thrives exclusively in sulfidic meso-thermal waters (21 °C) with high concentrations of sulphides, methane, and ammonium. Based on the geometric morphometrics-based study of the carapace shape and molecular phylogenetic analyses based on the COI marker (mtDNA), we discuss the phylogenetic relationship and evolutionary implication for the new species to thrive in groundwater sulfidic groundwater environments.
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Affiliation(s)
- Sanda Iepure
- Emil Racoviţă" Institute of Speleology, Clinicilor 5, 400006, Cluj Napoca, Romania.
- Department of Taxonomy and Ecology, University Babes Bolyai, Cluj Napoca, Romania.
| | - Anna Wysocka
- Faculty of Biology, Department of Evolutionary Genetics and Biosystematics, University of Gdańsk, Wita Stwosza 59, 80-308, Gdańsk, Poland
| | - Serban M Sarbu
- Emil Racoviţă" Institute of Speleology, Clinicilor 5, 400006, Cluj Napoca, Romania
- Department of Biological Sciences, California State University, Chico, CA, 95929, USA
| | - Michalina Kijowska
- Faculty of Biology, Department of Evolutionary Genetics and Biosystematics, University of Gdańsk, Wita Stwosza 59, 80-308, Gdańsk, Poland
| | - Tadeusz Namiotko
- Faculty of Biology, Department of Evolutionary Genetics and Biosystematics, University of Gdańsk, Wita Stwosza 59, 80-308, Gdańsk, Poland
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Szwarc A, Martens K, Namiotko T. Two new Cypridopsinae Kaufmann, 1900 (Crustacea, Ostracoda) from southern Africa. Zookeys 2021; 1076:83-107. [PMID: 34992491 PMCID: PMC8677703 DOI: 10.3897/zookeys.1076.76123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 11/22/2021] [Indexed: 11/26/2022] Open
Abstract
Two new Cypridopsinae ostracods, Potamocyprismeissneri sp. nov. and Sarscypridopsisharundineti sp. nov. are described. Both were found only as asexual (all-female) populations in temporary waters of southern Africa. Potamocyprismeissneri was collected from a small pan in the North-West Province of South Africa. It is approximately 0.5 mm long and belongs to the species group with long swimming setae on the second antennae. However, the species has a somewhat isolated position in the genus owing to the conspicuously reticulated carapace, which is furthermore densely covered by prominent conuli with normal pores carrying long sensilla, as well as to the wide anterior and posterior flanges on the left valve. To allow identification of the new species in relation to its closest congeners, a key to the species of the genus Potamocypris Brady, 1870 from southern Africa is provided. The genus Sarscypridopsis McKenzie, 1977 mostly has an Afrotropical distribution with only few species occurring in other regions. Sarscypridopsisharundineti was collected from floodplains of the outskirts of the Okavango Delta in Botswana. It is approximately 0.4 mm long and can be distinguished from congeners mainly by the smaller and more oval-shaped valves. We conclude that southern African Cypridopsinae urgently need integrated taxonomic revision, by means of both morphological characters and DNA-sequence data.
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Affiliation(s)
- Agata Szwarc
- Laboratory of Biosystematics and Ecology of Aquatic Invertebrates, Department of Evolutionary Genetics and Biosystematics, Faculty of Biology, University of Gdansk, Wita Stwosza 59, 80–308 Gdansk, PolandUniversity of GdanskGdanskPoland
| | - Koen Martens
- Royal Belgian Institute of Natural Sciences (RBINS), Natural Environments, Vautierstraat 29, 1000 Brussels, BelgiumRoyal Belgian Institute of Natural SciencesBrusselsBelgium
- Ghent University, Department of Biology, K.L. Ledeganckstraat 35, 9000 Ghent, BelgiumGhent UniversityGhentBelgium
| | - Tadeusz Namiotko
- Laboratory of Biosystematics and Ecology of Aquatic Invertebrates, Department of Evolutionary Genetics and Biosystematics, Faculty of Biology, University of Gdansk, Wita Stwosza 59, 80–308 Gdansk, PolandUniversity of GdanskGdanskPoland
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Mioduchowska M, Nitkiewicz B, Roszkowska M, Kačarević U, Madanecki P, Pinceel T, Namiotko T, Gołdyn B, Kaczmarek Ł. Taxonomic classification of the bacterial endosymbiont Wolbachia based on next-generation sequencing: is there molecular evidence for its presence in tardigrades? Genome 2021; 64:951-958. [PMID: 34015229 DOI: 10.1139/gen-2020-0036] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We used high-throughput sequencing of 16S rRNA to test whether tardigrade species are infected with Wolbachia parasites. We applied SILVA and Greengenes databases that allowed taxonomic classification of bacterial sequences to OTUs. The results obtained from both databases differed considerably in the number of OTUs, and only the Greengenes database allowed identification of Wolbachia (infection was also supported by comparison of sequences to NCBI database). The putative bacterial endosymbiont Wolbachia was discovered only in adult eutardigrades, while bacteria identified down to the order Rickettsiales were detected in both eutardigrade eggs and adult specimens. Nevertheless, the frequency of Wolbachia in the bacterial communities of the studied eutardigrades was low. Similarly, in our positive control, i.e., a fairy shrimp Streptocephalus cafer, which was found to be infected with Wolbachia in our previous study using Sanger sequencing, only the Rickettsiales were detected. We also carried out phylogenetic reconstruction using Wolbachia sequences from the SILVA and Greengenes databases, Alphaproteobacteria putative endosymbionts and Rickettsiales OTUs obtained in previous studies on the microbial community of tardigrades, and Rickettsiales and Wolbachia OTUs obtained in the current study. Our discovery of Wolbachia in tardigrades can fuel new research to uncover the specifics of this interaction.
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Affiliation(s)
- Monika Mioduchowska
- Department of Genetics and Biosystematics, Faculty of Biology, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland.,Department of Marine Plankton Research, Institute of Oceanography, University of Gdansk, Marszałka Piłsudskiego 46, 81-378 Gdynia, Poland; Department of Invertebrate Zoology and Hydrobiology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland
| | - Bartosz Nitkiewicz
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury, M. Oczapowskiego 1A, 10-719 Olsztyn, Poland
| | - Milena Roszkowska
- Department of Animal Taxonomy and Ecology, Faculty of Biology, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland.,Department of Bioenergetics, Faculty of Biology, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland
| | - Uroš Kačarević
- Faculty of Biology, University of Belgrade, Studentski trg 16, 11000 Belgrade, Serbia
| | - Piotr Madanecki
- Department of Biology and Pharmaceutical Botany, Faculty of Pharmacy, Medical University of Gdansk, J. Hallera 107, 80-416 Gdansk, Poland
| | - Tom Pinceel
- Animal Ecology, Global Change and Sustainable Development, KU Leuven, Charles Deberiotstraat 32, 3000 Leuven, Belgium.,Centre for Environmental Management, University of the Free State, Bloemfontein, South Africa
| | - Tadeusz Namiotko
- Department of Genetics and Biosystematics, Faculty of Biology, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland
| | - Bartłomiej Gołdyn
- Department of General Zoology, Institute of Environmental Biology, Faculty of Biology, Adam Mickiewicz University in Poznan, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland
| | - Łukasz Kaczmarek
- Department of Animal Taxonomy and Ecology, Faculty of Biology, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland
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Bieszke B, Namiotko L, Namiotko T. Life history traits of a temporary water ostracod Heterocypris incongruens (Crustacea, Ostracoda) are affected by power frequency (50 Hz) electromagnetic environmental pollution. The European Zoological Journal 2020. [DOI: 10.1080/24750263.2020.1736654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Affiliation(s)
- B. Bieszke
- Laboratory of Biosystematics and Ecology of Aquatic Invertebrates, Department of Genetics and Biosystematics, Faculty of Biology, University of Gdansk, Gdansk, Poland
| | - L. Namiotko
- Laboratory of Biosystematics and Ecology of Aquatic Invertebrates, Department of Genetics and Biosystematics, Faculty of Biology, University of Gdansk, Gdansk, Poland
| | - T. Namiotko
- Laboratory of Biosystematics and Ecology of Aquatic Invertebrates, Department of Genetics and Biosystematics, Faculty of Biology, University of Gdansk, Gdansk, Poland
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6
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Mioduchowska M, Czyż MJ, Gołdyn B, Kilikowska A, Namiotko T, Pinceel T, Łaciak M, Sell J. Detection of bacterial endosymbionts in freshwater crustaceans: the applicability of non-degenerate primers to amplify the bacterial 16S rRNA gene. PeerJ 2018; 6:e6039. [PMID: 30581663 PMCID: PMC6296333 DOI: 10.7717/peerj.6039] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 10/30/2018] [Indexed: 12/26/2022] Open
Abstract
Bacterial endosymbionts of aquatic invertebrates remain poorly studied. This is at least partly due to a lack of suitable techniques and primers for their identification. We designed a pair of non-degenerate primers which enabled us to amplify a fragment of ca. 500 bp of the 16S rRNA gene from various known bacterial endosymbiont species. By using this approach, we identified four bacterial endosymbionts, two endoparasites and one uncultured bacterium in seven, taxonomically diverse, freshwater crustacean hosts from temporary waters across a wide geographical area. The overall efficiency of our new WOLBSL and WOLBSR primers for amplification of the bacterial 16S rRNA gene was 100%. However, if different bacterial species from one sample were amplified simultaneously, sequences were illegible, despite a good quality of PCR products. Therefore, we suggest using our primers at the first stage of bacterial endosymbiont identification. Subsequently, genus specific primers are recommended. Overall, in the era of next-generation sequencing our method can be used as a first simple and low-cost approach to identify potential microbial symbionts associated with freshwater crustaceans using simple Sanger sequencing. The potential to detected bacterial symbionts in various invertebrate hosts in such a way will facilitate studies on host-symbiont interactions and coevolution.
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Affiliation(s)
- Monika Mioduchowska
- Department of Genetics and Biosystematics, Faculty of Biology, University of Gdansk, Gdansk, Poland
| | - Michał Jan Czyż
- Research Centre of Quarantine, Invasive and Genetically Modified Organisms, Institute of Plant Protection-National Research Institute, Poznan, Poland
| | - Bartłomiej Gołdyn
- Department of General Zoology, Institute of Environmental Biology, Faculty of Biology, Adam Mickiewicz University, Poznan, Poland
| | - Adrianna Kilikowska
- Department of Genetics and Biosystematics, Faculty of Biology, University of Gdansk, Gdansk, Poland
| | - Tadeusz Namiotko
- Department of Genetics and Biosystematics, Faculty of Biology, University of Gdansk, Gdansk, Poland
| | - Tom Pinceel
- Animal Ecology, Global Change and Sustainable Development, KU Leuven, Leuven, Belgium.,Centre for Environmental Management, University of the Free State, Bloemfontein, South Africa
| | - Małgorzata Łaciak
- Polish Academy of Sciences, Institute of Nature Conservation, Krakow, Poland
| | - Jerzy Sell
- Department of Genetics and Biosystematics, Faculty of Biology, University of Gdansk, Gdansk, Poland
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Danielopol DL, Cabral MC, Lord A, Carbonel P, Gross M, Stoica M, Humphreys WF, Namiotko T, TÓth E, KÜlkÖylÜoĞlu O, Piller WE, Nunes T. Sieve-type pore canals in the Timiriaseviinae-A contribution to the comparative morphology and the systematics of the Limnocytheridae (Ostracoda, Crustacea). Zootaxa 2018; 4495:1-64. [PMID: 30313727 DOI: 10.11646/zootaxa.4495.1.1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Indexed: 11/04/2022]
Abstract
Examination of normal pore canals, especially sieve-type pore canals, in living and fossil representatives of ten genera of the family Limnocytheridae, subfamily Timiriaseviinae, has revealed important diversity of structure. These complex pore canals have been studied via high-resolution scanning electron microscopy (the Cartographic Method) and analysed via the application of newly devised indices to assess patterns of consistency and variation in both detailed structure of individual pores and of their distribution on the calcified valve. The timiriaseviine taxa are compared with species of the genera Limnocythere, sub-family Limnocytherinae and Cyprideis (family Cytherideidae). The relationship between the living animal and its aquatic environment is discussed in the light of previous studies and of new evidence herein. The importance of normal pore canals for systematics is highlighted by the recognition and definition of the new tribe Gomphodellini Danielopol, Cabral Lord nov. tribe, subfamily Timiriaseviinae, family Limnocytheridae.
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Affiliation(s)
- Dan L Danielopol
- University of Graz, Nawi Graz Geocenter, Heinrichstrasse 26, 8010 Graz, Austria..
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Namiotko T, Danielopol DL, Meisch C, Gross M, Mori N. Redefinition of the Genus Typhlocypris Vejdovský, 1882 (Ostracoda, Candonidae). Crustaceana 2014; 87:952-984. [PMID: 28090119 PMCID: PMC5230036 DOI: 10.1163/15685403-00003338] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The taxonomy of the genus Typhlocypris Vejdovský, 1882 is reviewed. New morphological information on Typhlocypris eremita (Vejdovský, 1882), the type species of the genus, is provided, and a new reference material is presented. The generic diagnosis is emended with details derived from the developmental trajectory of the valves, from the juvenile stage A-3 to the adult. Those criteria clearly differentiate Typhlocypris from the related genus Pseudocandona Kaufmann, 1900. As here redefined, Typhlocypris is a phylogentic lineage of the subfamily Candoninae containing extant species presently living in aquatic subterranean habitats and fossil species recovered from non-marine Late Palaeogene to Neogene and Quaternary deposits in Europe and western Asia. The type species of Typhlocypris is considered a metaspecies, taxonomically treated as T. eremita (sensu lato), which includes populations resembling the newly designated reference material. The homeomorphic triangular valve shape of the Candoninae is discussed. Careful examination of the valve morphology of Typhlocypris combined with the analysis of limb traits helps to distinguish representatives of this genus from unrelated phylogenetic groups presenting similar triangularly shaped valves. It is emphasised that for a useful description of Typhlocypris taxa both transmitted light and scanning electron microscopy are necessary.
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Affiliation(s)
- Tadeusz Namiotko
- University of Gdańsk, Faculty of Biology, Department of Genetics, Laboratory of Limnozoology, Wita Stwosza 59, PL-80-308 Gdańsk, Poland
| | - Dan L. Danielopol
- University of Graz, Institute for Earth Sciences (Geology & Palaeontology), Heinrichstrasse 26, A-8010 Graz, Austria
| | - Claude Meisch
- National Natural History Museum of Luxembourg, 25 rue Munster, L-2160 Luxembourg, Luxembourg
| | - Martin Gross
- Universalmuseum Joanneum, Department for Geology & Palaeontology, Weinzöttlstrasse 16, A-8045 Graz, Austria
| | - Nataša Mori
- National Institute of Biology, Večna pot 111, SI-1000 Ljubljana, Slovenia
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Namiotko T, Danielopol DL, Belmecheri S, Gross M, Von Grafenstein U. On the Leptocytheridae Ostracods of the Long-Lived Lake Ohrid: A Reappraisal of their Taxonomic Assignment and Biogeographic Origin. Int Rev Hydrobiol 2012; 97:356-374. [PMID: 28090189 PMCID: PMC5230413 DOI: 10.1002/iroh.201211496] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Leptocythere karamani Klie, one of few non-marine species of the family Leptocytheridae (Ostracoda), is redescribed from specimens recently collected from the long-lived Lake Ohrid on the Albanian-Macedonian border. Detailed morphologies of valves and limbs of this species were compared with those of other Ohrid-Prespa leptocytherids, of some recent marine representatives of the genera Leptocythere Sars and Callistocythere Ruggieri from the Mediterranean, Irish and Baltic seas as well as with that of fossil non-marine species from the Miocene palaeo-Lake Pannon belonging to the genera Amnicythere Devoto and Euxinocythere Stancheva. Comparison with other species of Leptocytheridae inhabiting fresh to brackish waters of the Black-Azov, Caspian and Aral seas were also carried out using descriptions provided in the literature. Based on the comparative morphological studies it is shown that L. karamani and other Ohrid leptocytherids have a number of characters distinguishing them from other members of the genus Leptocythere but demonstrating a relationship with species of the genus Amnicythere. The most reliable of these characters are: a) anterior valve vestibulum from where mostly uni-ramified pore canals start, b) the entomodont hinge type with a strong anterior anti-slip tooth, a smooth posterior anti-slip bar on the left valve, and c) the hemipenis with underdeveloped lateral lobe and reduced clasping organ. From this strong evidence, the Ohrid leptocytherid species are allocated to the genus Amnicythere. Finally, a biogeographic scenario on the origin of the Ohrid leptocytherids is proposed which matches the "Lake Pannon derivate hypothesis". Close relationship of the Ohrid Amnicythere species with the non-marine leptocytherid taxa from the Neogene lakes of Central and Eastern Europe and with extant taxa from the Black and Caspian seas may indicate that the Ohrid Amnicythere derived from Lake Pannon species which were able to colonise lakes in Southern Europe through a stepping-stone process and subsequently to adapt to freshwater environment.
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Affiliation(s)
- Tadeusz Namiotko
- Laboratory of Limnozoology, Department of Genetics, University of Gdańsk, Kładki 24, 80–822 Gdańsk, Poland
| | - Dan L. Danielopol
- Commission for the Stratigraphical and Palaeontological Research of Austria, Austrian Academy of Sciences, c/o Institute for Earth Sciences (Geology and Palaeontology), Karl-Franzens University, Heinrichstraße 26, A-8010 Graz, Austria
| | - Soumaya Belmecheri
- Department of Meteorology, Earth and Environmental Systems Institute, The Pennsylvania State University, 416 Walker Building, University Park, PA-16802, USA
- Laboratoire des Sciences du Climat et de l’Environnement, Orme des Merisiers, Bâtiment 701, F-91191 Gif-sur-Yvette, France
| | - Martin Gross
- Department for Geology and Palaeontology, Universalmuseum Joanneum, Weinzöttlstraße 16, A-8045 Graz, Austria
| | - Ulrich Von Grafenstein
- Laboratoire des Sciences du Climat et de l’Environnement, Orme des Merisiers, Bâtiment 701, F-91191 Gif-sur-Yvette, France
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Iglikowska A, Namiotko T. The Impact of Environmental Factors on Diversity of Ostracoda in Freshwater Habitats of Subarctic and Temperate Europe. ANN ZOOL FENN 2012. [DOI: 10.5735/086.049.0401] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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11
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Bode SNS, Adolfsson S, Lamatsch DK, Martins MJF, Schmit O, Vandekerkhove J, Mezquita F, Namiotko T, Rossetti G, Schön I, Butlin RK, Martens K. Exceptional cryptic diversity and multiple origins of parthenogenesis in a freshwater ostracod. Mol Phylogenet Evol 2009; 54:542-52. [PMID: 19703573 DOI: 10.1016/j.ympev.2009.08.022] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2009] [Revised: 08/05/2009] [Accepted: 08/18/2009] [Indexed: 11/30/2022]
Abstract
The persistence of asexual reproduction in many taxa depends on a balance between the origin of new asexual lineages and the extinction of old ones. This turnover determines the diversity of extant asexual populations and so influences the interaction between sexual and asexual modes of reproduction. Species with mixed reproduction, like the freshwater ostracod (Crustacea) morphospecies Eucypris virens, are a good model to examine these dynamics. This species is also a geographic parthenogen, in which sexual females and males co-exist with asexual females in the circum-Mediterranean area only, whereas asexual females occur all over Europe. A molecular phylogeny of E. virens based on the mitochondrial COI and 16S fragments is presented. It is characterised by many distinct clusters of haplotypes which are either exclusively sexual or asexual, with only one exception, and are often separated by deep branches. Analysis of the phylogeny reveals an astonishing cryptic diversity, which indicates the existence of a species complex with more than 40 cryptic taxa. We therefore suggest a revision of the single species status of E. virens. The phylogeny indicates multiple transitions from diverse sexual ancestor populations to asexuality. Although many transitions appear to be ancient, we argue that this may be an artefact of the existence of unsampled or extinct sexual lineages.
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Affiliation(s)
- S N S Bode
- RBINS, Dept. of Freshwater Biology, Rue Vautier 29, 1000 Brussels, Belgium.
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João Fernandes Martins M, Vandekerkhove J, Namiotko T. Environmental stability and the distribution of the sexes: insights from life history experiments with the geographic parthenogen Eucypris virens
(Crustacea: Ostracoda). OIKOS 2008. [DOI: 10.1111/j.0030-1299.2008.16557.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Danielopol DL, Baltanás A, Namiotko T, Geiger W, Pichler M, Reina M, Roidmayr G. Developmental trajectories in geographically separated populations of non-marine ostracods: morphometric applications for palaeoecological studies. ACTA ACUST UNITED AC 2008. [DOI: 10.1007/bf03043988] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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