Karyotypic Diversity and Evolution in a Sympatric Assemblage of Neotropical Electric Knifefish
Chromosome changes can perform an important role in speciation by acting as post-zygotic reproductive barriers. The Neotropical electric fish genus Brachyhypopomus (Gymnotiformes, Hypopomidae) has 28 described species, but cytogenetic data are hitherto available only for four of them. To understand...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2018-03-01
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| Series: | Frontiers in Genetics |
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| Online Access: | http://journal.frontiersin.org/article/10.3389/fgene.2018.00081/full |
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| author | Adauto L. Cardoso Julio C. Pieczarka Julio C. Pieczarka William G. R. Crampton Jonathan S. Ready Wilsea M. B. de Figueiredo Ready Joseph C. Waddell Jonas A. de Oliveira Cleusa Y. Nagamachi Cleusa Y. Nagamachi |
| author_facet | Adauto L. Cardoso Julio C. Pieczarka Julio C. Pieczarka William G. R. Crampton Jonathan S. Ready Wilsea M. B. de Figueiredo Ready Joseph C. Waddell Jonas A. de Oliveira Cleusa Y. Nagamachi Cleusa Y. Nagamachi |
| author_sort | Adauto L. Cardoso |
| collection | DOAJ |
| description | Chromosome changes can perform an important role in speciation by acting as post-zygotic reproductive barriers. The Neotropical electric fish genus Brachyhypopomus (Gymnotiformes, Hypopomidae) has 28 described species, but cytogenetic data are hitherto available only for four of them. To understand karyotype evolution and investigate the possible role of chromosome changes in the diversification of this genus, we describe here the karyotype of eight species of Brachyhypopomus from a sympatric assemblage in the central Amazon basin. We analyzed cytogenetic data in the context of a phylogenetic reconstruction of the genus and known patterns of geographical distribution. We found a strong phylogenetic signal for chromosome number and noted that sympatric species have exclusive karyotypes. Additional insights into the role of chromosome changes in the diversification of Brachyhypopomus are discussed. |
| first_indexed | 2024-12-11T08:36:57Z |
| format | Article |
| id | doaj.art-a044910b7edf4cad9283ce576b0088ac |
| institution | Directory Open Access Journal |
| issn | 1664-8021 |
| language | English |
| last_indexed | 2024-12-11T08:36:57Z |
| publishDate | 2018-03-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Genetics |
| spelling | doaj.art-a044910b7edf4cad9283ce576b0088ac2022-12-22T01:14:21ZengFrontiers Media S.A.Frontiers in Genetics1664-80212018-03-01910.3389/fgene.2018.00081331980Karyotypic Diversity and Evolution in a Sympatric Assemblage of Neotropical Electric KnifefishAdauto L. Cardoso0Julio C. Pieczarka1Julio C. Pieczarka2William G. R. Crampton3Jonathan S. Ready4Wilsea M. B. de Figueiredo Ready5Joseph C. Waddell6Jonas A. de Oliveira7Cleusa Y. Nagamachi8Cleusa Y. Nagamachi9Laboratório de Citogenética, Centro de Estudos Avançados da Biodiversidade, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, BrazilLaboratório de Citogenética, Centro de Estudos Avançados da Biodiversidade, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, BrazilConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Brasília, BrazilDepartment of Biology, University of Central Florida, Orlando, FL, United StatesLaboratório de Lepidopterologia e Ictiologia Integrada, Centro de Estudos Avançados da Biodiversidade, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, BrazilLaboratório de Lepidopterologia e Ictiologia Integrada, Centro de Estudos Avançados da Biodiversidade, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, BrazilDepartment of Biology, University of Central Florida, Orlando, FL, United StatesInstituto de Desenvolvimento Sustentável Mamirauá, Tefé, BrazilLaboratório de Citogenética, Centro de Estudos Avançados da Biodiversidade, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, BrazilConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Brasília, BrazilChromosome changes can perform an important role in speciation by acting as post-zygotic reproductive barriers. The Neotropical electric fish genus Brachyhypopomus (Gymnotiformes, Hypopomidae) has 28 described species, but cytogenetic data are hitherto available only for four of them. To understand karyotype evolution and investigate the possible role of chromosome changes in the diversification of this genus, we describe here the karyotype of eight species of Brachyhypopomus from a sympatric assemblage in the central Amazon basin. We analyzed cytogenetic data in the context of a phylogenetic reconstruction of the genus and known patterns of geographical distribution. We found a strong phylogenetic signal for chromosome number and noted that sympatric species have exclusive karyotypes. Additional insights into the role of chromosome changes in the diversification of Brachyhypopomus are discussed.http://journal.frontiersin.org/article/10.3389/fgene.2018.00081/fullkaryotype evolutionchromosome rearrangementsDNA barcodereproductive isolationsympatry |
| spellingShingle | Adauto L. Cardoso Julio C. Pieczarka Julio C. Pieczarka William G. R. Crampton Jonathan S. Ready Wilsea M. B. de Figueiredo Ready Joseph C. Waddell Jonas A. de Oliveira Cleusa Y. Nagamachi Cleusa Y. Nagamachi Karyotypic Diversity and Evolution in a Sympatric Assemblage of Neotropical Electric Knifefish Frontiers in Genetics karyotype evolution chromosome rearrangements DNA barcode reproductive isolation sympatry |
| title | Karyotypic Diversity and Evolution in a Sympatric Assemblage of Neotropical Electric Knifefish |
| title_full | Karyotypic Diversity and Evolution in a Sympatric Assemblage of Neotropical Electric Knifefish |
| title_fullStr | Karyotypic Diversity and Evolution in a Sympatric Assemblage of Neotropical Electric Knifefish |
| title_full_unstemmed | Karyotypic Diversity and Evolution in a Sympatric Assemblage of Neotropical Electric Knifefish |
| title_short | Karyotypic Diversity and Evolution in a Sympatric Assemblage of Neotropical Electric Knifefish |
| title_sort | karyotypic diversity and evolution in a sympatric assemblage of neotropical electric knifefish |
| topic | karyotype evolution chromosome rearrangements DNA barcode reproductive isolation sympatry |
| url | http://journal.frontiersin.org/article/10.3389/fgene.2018.00081/full |
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