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Poignet M, Johnson Pokorná M, Altmanová M, Majtánová Z, Dedukh D, Albrecht T, Reif J, Osiejuk TS, Reifová R. Comparison of Karyotypes in Two Hybridizing Passerine Species: Conserved Chromosomal Structure but Divergence in Centromeric Repeats. Front Genet 2021; 12:768987. [PMID: 34938317 PMCID: PMC8687609 DOI: 10.3389/fgene.2021.768987] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 09/01/2021] [Accepted: 11/10/2021] [Indexed: 11/23/2022] Open
Abstract
Changes in chromosomal structure involving chromosomal rearrangements or copy number variation of specific sequences can play an important role in speciation. Here, we explored the chromosomal structure of two hybridizing passerine species; the common nightingale (Luscinia megarhynchos) and the thrush nightingale (Luscinia luscinia), using conventional cytogenetic approaches, immunostaining of meiotic chromosomes, fluorescence in situ hybridization as well as comparative genomic hybridization (CGH). We found that the two nightingale species show conserved karyotypes with the same diploid chromosome number of 2n = 84. In addition to standard chromosomes, both species possessed a small germline restricted chromosome of similar size as a microchromosome. Just a few subtle changes in chromosome morphology were observed between the species, suggesting that only a limited number of chromosomal rearrangements occurred after the species divergence. The interspecific CGH experiment suggested that the two nightingale species might have diverged in centromeric repetitive sequences in most macro- and microchromosomes. In addition, some chromosomes showed changes in copy number of centromeric repeats between the species. The observation of very similar karyotypes in the two nightingale species is consistent with a generally slow rate of karyotype evolution in birds. The divergence of centromeric sequences between the two species could theoretically cause meiotic drive or reduced fertility in interspecific hybrids. Nevertheless, further studies are needed to evaluate the potential role of chromosomal structural variations in nightingale speciation.
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Affiliation(s)
- Manon Poignet
- Department of Zoology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Martina Johnson Pokorná
- Department of Zoology, Faculty of Science, Charles University, Prague, Czech Republic
- Department of Ecology, Faculty of Science, Charles University, Prague, Czech Republic
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Liběchov, Czech Republic
| | - Marie Altmanová
- Department of Ecology, Faculty of Science, Charles University, Prague, Czech Republic
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Liběchov, Czech Republic
| | - Zuzana Majtánová
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Liběchov, Czech Republic
| | - Dmitry Dedukh
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Liběchov, Czech Republic
| | - Tomáš Albrecht
- Department of Zoology, Faculty of Science, Charles University, Prague, Czech Republic
- Institute of Vertebrate Biology, Czech Academy of Sciences, Brno, Czech Republic
| | - Jiří Reif
- Institute for Environmental Studies, Faculty of Science, Charles University, Prague, Czech Republic
- Department of Zoology and Laboratory of Ornithology, Faculty of Science, Palacký University, Olomouc, Czech Republic
| | - Tomasz S. Osiejuk
- Department of Behavioural Ecology, Institute of Environmental Biology, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland
| | - Radka Reifová
- Department of Zoology, Faculty of Science, Charles University, Prague, Czech Republic
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Dedukh D, Riumin S, Chmielewska M, Rozenblut-Kościsty B, Kolenda K, Kaźmierczak M, Dudzik A, Ogielska M, Krasikova A. Author Correction: Micronuclei in germ cells of hybrid frogs from Pelophylax esculentus complex contain gradually eliminated chromosomes. Sci Rep 2020; 10:19864. [PMID: 33177602 PMCID: PMC7659347 DOI: 10.1038/s41598-020-76320-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Affiliation(s)
- D Dedukh
- Saint-Petersburg State University, Saint-Petersburg, Russia
| | - S Riumin
- Saint-Petersburg State University, Saint-Petersburg, Russia
| | - M Chmielewska
- Amphibian Biology Group, Department of Evolutionary Biology and Conservation of Vertebrates, Faculty of Biological Sciences, University of Wrocław, Wrocław, Poland
| | - B Rozenblut-Kościsty
- Amphibian Biology Group, Department of Evolutionary Biology and Conservation of Vertebrates, Faculty of Biological Sciences, University of Wrocław, Wrocław, Poland
| | - K Kolenda
- Amphibian Biology Group, Department of Evolutionary Biology and Conservation of Vertebrates, Faculty of Biological Sciences, University of Wrocław, Wrocław, Poland
| | - M Kaźmierczak
- Amphibian Biology Group, Department of Evolutionary Biology and Conservation of Vertebrates, Faculty of Biological Sciences, University of Wrocław, Wrocław, Poland
| | - A Dudzik
- Amphibian Biology Group, Department of Evolutionary Biology and Conservation of Vertebrates, Faculty of Biological Sciences, University of Wrocław, Wrocław, Poland
| | - M Ogielska
- Amphibian Biology Group, Department of Evolutionary Biology and Conservation of Vertebrates, Faculty of Biological Sciences, University of Wrocław, Wrocław, Poland
| | - A Krasikova
- Saint-Petersburg State University, Saint-Petersburg, Russia.
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Marta A, Dedukh D, Bartoš O, Majtánová Z, Janko K. Cytogenetic Characterization of Seven Novel satDNA Markers in Two Species of Spined Loaches ( Cobitis) and Their Clonal Hybrids. Genes (Basel) 2020; 11:genes11060617. [PMID: 32512717 PMCID: PMC7348982 DOI: 10.3390/genes11060617] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 05/31/2020] [Accepted: 06/02/2020] [Indexed: 01/11/2023] Open
Abstract
Interspecific hybridization is a powerful evolutionary force. However, the investigation of hybrids requires the application of methodologies that provide efficient and indubitable identification of both parental subgenomes in hybrid individuals. Repetitive DNA, and especially the satellite DNA sequences (satDNA), can rapidly diverge even between closely related species, hence providing a useful tool for cytogenetic investigations of hybrids. Recent progress in whole-genome sequencing (WGS) offers unprecedented possibilities for the development of new tools for species determination, including identification of species-specific satDNA markers. In this study, we focused on spined loaches (Cobitis, Teleostei), a group of fishes with frequent interspecific hybridization. Using the WGS of one species, C. elongatoides, we identified seven satDNA markers, which were mapped by fluorescence in situ hybridization on mitotic and lampbrush chromosomes of C. elongatoides, C. taenia and their triploid hybrids (C. elongatoides × 2C. taenia). Two of these markers were chromosome-specific in both species, one had centromeric localization in multiple chromosomes and four had variable patterns between tested species. Our study provided a novel set of cytogenetic markers for Cobitis species and demonstrated that NGS-based development of satDNA cytogenetic markers may provide a very efficient and easy tool for the investigation of hybrid genomes, cell ploidy, and karyotype evolution.
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Affiliation(s)
- Anatolie Marta
- Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 27721 Liběchov, Czech Republic; (D.D.); (O.B.); (Z.M.); (K.J.)
- Department of Zoology, Faculty of Science, Charles University in Prague, 128 00 Prague, Czech Republic
- Institute of Zoology, Academy of Science of Moldova, MD-2028, Academiei 1, 2001 Chisinau, Moldova
- Correspondence:
| | - Dmitry Dedukh
- Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 27721 Liběchov, Czech Republic; (D.D.); (O.B.); (Z.M.); (K.J.)
| | - Oldřich Bartoš
- Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 27721 Liběchov, Czech Republic; (D.D.); (O.B.); (Z.M.); (K.J.)
- Department of Zoology, Faculty of Science, Charles University in Prague, 128 00 Prague, Czech Republic
| | - Zuzana Majtánová
- Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 27721 Liběchov, Czech Republic; (D.D.); (O.B.); (Z.M.); (K.J.)
| | - Karel Janko
- Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 27721 Liběchov, Czech Republic; (D.D.); (O.B.); (Z.M.); (K.J.)
- Department of Biology and Ecology, Faculty of Science, University of Ostrava, Chittussiho 10, 710 00 Ostrava, Czech Republic
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Zlotina A, Dedukh D, Krasikova A. Amphibian and Avian Karyotype Evolution: Insights from Lampbrush Chromosome Studies. Genes (Basel) 2017; 8:genes8110311. [PMID: 29117127 PMCID: PMC5704224 DOI: 10.3390/genes8110311] [Citation(s) in RCA: 7] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 10/29/2017] [Accepted: 10/31/2017] [Indexed: 01/04/2023] Open
Abstract
Amphibian and bird karyotypes typically have a complex organization, which makes them difficult for standard cytogenetic analysis. That is, amphibian chromosomes are generally large, enriched with repetitive elements, and characterized by the absence of informative banding patterns. The majority of avian karyotypes comprise a small number of relatively large macrochromosomes and numerous tiny morphologically undistinguishable microchromosomes. A good progress in investigation of amphibian and avian chromosome evolution became possible with the usage of giant lampbrush chromosomes typical for growing oocytes. Due to the giant size, peculiarities of organization and enrichment with cytological markers, lampbrush chromosomes can serve as an opportune model for comprehensive high-resolution cytogenetic and cytological investigations. Here, we review the main findings on chromosome evolution in amphibians and birds that were obtained using lampbrush chromosomes. In particular, we discuss the data on evolutionary chromosomal rearrangements, accumulation of polymorphisms, evolution of sex chromosomes as well as chromosomal changes during clonal reproduction of interspecies hybrids.
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Affiliation(s)
- Anna Zlotina
- Saint-Petersburg State University, Saint-Petersburg 199034, Russia.
| | - Dmitry Dedukh
- Saint-Petersburg State University, Saint-Petersburg 199034, Russia.
| | - Alla Krasikova
- Saint-Petersburg State University, Saint-Petersburg 199034, Russia.
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Dedukh D, Litvinchuk S, Rosanov J, Shabanov D, Krasikova A. Mutual maintenance of di- and triploid Pelophylax esculentus hybrids in R-E systems: results from artificial crossings experiments. BMC Evol Biol 2017; 17:220. [PMID: 29041900 PMCID: PMC5645918 DOI: 10.1186/s12862-017-1063-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [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: 03/09/2017] [Accepted: 10/02/2017] [Indexed: 11/08/2022] Open
Abstract
Background Interspecies animal hybrids can employ clonal or hemiclonal reproduction modes where one or all parental genomes are transmitted to the progeny without recombination. Nevertheless, some interspecies hybrids retain strong connection with the parental species needed for successful reproduction. Appearance of polyploid hybrid animals may play an important role in the substitution of parental species and in the speciation process. Results To establish the mechanisms that enable parental species, diploid and polyploid hybrids coexist we have performed artificial crossing experiments of water frogs of Pelophylax esculentus complex. We identified tadpole karyotypes and oocyte genome composition in all females involved in the crossings. The majority of diploid and triploid hybrid frogs produced oocytes with 13 bivalents leading to haploid gametes with the same genome as parental species hybrids usually coexist with. After fertilization of such gametes only diploid animals appeared. Oocytes with 26 bivalents produced by some diploid hybrid frogs lead to diploid gametes, which give rise to triploid hybrids after fertilization. In gonads of all diploid and triploid hybrid tadpoles we found DAPI-positive micronuclei (nucleus-like bodies) involved in selective genome elimination. Hybrid male and female individuals produced tadpoles with variable karyotype and ploidy even in one crossing owing to gametes with various genome composition. Conclusions We propose a model of diploid and triploid hybrid frog reproduction in R-E population systems. Triploid Pelophylax esculentus hybrids can transmit genome of parental species they coexist with by producing haploid gametes with the same genome composition. Triploid hybrids cannot produce triploid individuals after crossings with each other and depend on diploid hybrid females producing diploid eggs. In contrast to other population systems, the majority of diploid and triploid hybrid females unexpectedly produced gametes with the same genome as parental species hybrids coexist with. Electronic supplementary material The online version of this article (10.1186/s12862-017-1063-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Dmitry Dedukh
- Saint-Petersburg State University, Saint-Petersburg, Russia
| | - Spartak Litvinchuk
- Institute of Cytology, Russian Academy of Sciences, Saint-Petersburg, Russia
| | - Juriy Rosanov
- Institute of Cytology, Russian Academy of Sciences, Saint-Petersburg, Russia
| | | | - Alla Krasikova
- Saint-Petersburg State University, 7-9, Universitetskaya nab, 199034, Saint-Petersburg, Russia.
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Dedukh D, Litvinchuk S, Rosanov J, Mazepa G, Saifitdinova A, Shabanov D, Krasikova A. Optional Endoreplication and Selective Elimination of Parental Genomes during Oogenesis in Diploid and Triploid Hybrid European Water Frogs. PLoS One 2015; 10:e0123304. [PMID: 25894314 PMCID: PMC4403867 DOI: 10.1371/journal.pone.0123304] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Accepted: 03/03/2015] [Indexed: 11/25/2022] Open
Abstract
Incompatibilities between parental genomes decrease viability of interspecific hybrids; however, deviations from canonical gametogenesis such as genome endoreplication and elimination can rescue hybrid organisms. To evaluate frequency and regularity of genome elimination and endoreplication during gametogenesis in hybrid animals with different ploidy, we examined genome composition in oocytes of di- and triploid hybrid frogs of the Pelophylax esculentus complex. Obtained results allowed us to suggest that during oogenesis the endoreplication involves all genomes occurring before the selective genome elimination. We accepted the hypothesis that only elimination of one copied genome occurs premeiotically in most of triploid hybrid females. At the same time, we rejected the hypothesis stating that the genome of parental species hybrid frogs co-exist with is always eliminated during oogenesis in diploid hybrids. Diploid hybrid frogs demonstrate an enlarged frequency of deviations in oogenesis comparatively to triploid hybrids. Typical for hybrid frogs deviations in gametogenesis increase variability of produced gametes and provide a mechanism for appearance of different forms of hybrids.
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Affiliation(s)
- Dmitry Dedukh
- Saint-Petersburg State University, Saint-Petersburg, Russia
| | - Spartak Litvinchuk
- Institute of Cytology, Russian Academy of Sciences, Saint-Petersburg, Russia
| | - Juriy Rosanov
- Institute of Cytology, Russian Academy of Sciences, Saint-Petersburg, Russia
| | - Glib Mazepa
- Department of Ecology and Genetic, Evolutionary Biology Centre, Uppsala University, Uppsala, Sweden
- V.N. Karazin Kharkiv National University, Kharkiv, Ukraine
| | | | | | - Alla Krasikova
- Saint-Petersburg State University, Saint-Petersburg, Russia
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Dedukh D, Mazepa G, Shabanov D, Rosanov J, Litvinchuk S, Borkin L, Saifitdinova A, Krasikova A. Cytological maps of lampbrush chromosomes of European water frogs (Pelophylax esculentus complex) from the Eastern Ukraine. BMC Genet 2013; 14:26. [PMID: 23590698 PMCID: PMC3648425 DOI: 10.1186/1471-2156-14-26] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2013] [Accepted: 04/04/2013] [Indexed: 11/10/2022] Open
Abstract
Background Hybridogenesis (hemiclonal inheritance) is a kind of clonal reproduction in which hybrids between parental species are reproduced by crossing with one of the parental species. European water frogs (Pelophylax esculentus complex) represent an appropriate model for studying interspecies hybridization, processes of hemiclonal inheritance and polyploidization. P. esculentus complex consists of two parental species, P. ridibundus (the lake frog) and P. lessonae (the pool frog), and their hybridogenetic hybrid – P. esculentus (the edible frog). Parental and hybrid frogs can reproduce syntopically and form hemiclonal population systems. For studying mechanisms underlying the maintenance of water frog population systems it is required to characterize the karyotypes transmitted in gametes of parental and different hybrid animals of both sexes. Results In order to obtain an instrument for characterization of oocyte karyotypes in hybrid female frogs, we constructed cytological maps of lampbrush chromosomes from oocytes of both parental species originating in Eastern Ukraine. We further identified certain molecular components of chromosomal marker structures and mapped coilin-rich spheres and granules, chromosome associated nucleoli and special loops accumulating splicing factors. We recorded the dissimilarities between P. ridibundus and P. lessonae lampbrush chromosomes in the length of orthologous chromosomes, number and location of marker structures and interstitial (TTAGGG)n-repeat sites as well as activity of nucleolus organizer. Satellite repeat RrS1 was mapped in centromere regions of lampbrush chromosomes of the both species. Additionally, we discovered transcripts of RrS1 repeat in oocytes of P. ridibundus and P. lessonae. Moreover, G-rich transcripts of telomere repeat were revealed in association with terminal regions of P. ridibundus and P. lessonae lampbrush chromosomes. Conclusions The constructed cytological maps of lampbrush chromosomes of P. ridibundus and P. lessonae provide basis to define the type of genome transmitted within individual oocytes of P. esculentus females with different ploidy and from various population systems.
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Affiliation(s)
- Dmitry Dedukh
- Saint-Petersburg State University, Saint-Petersburg, Russia
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