New approach data in electric fish (Teleostei: Gymnotus): Sex chromosome evolution and repetitive DNA
Antagonist sexual selection is the driving force behind the origin and diversification of sex chromosomes such as XX/XY and ZZ/ZW. However, chromosome mobility, mainly in fishes, may result in the formation of chromosomes of recent origin, a process known as turnover. The family Gymnotidae, which is...
| Autor principal: | Silva, M. R. da |
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| Outros Autores: | Matoso, D. A., Artoni, Roberto Ferreira, Feldberg, Eliana |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Zebrafish
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/17694 |
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oai:repositorio:1-17694 |
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oai:repositorio:1-17694 New approach data in electric fish (Teleostei: Gymnotus): Sex chromosome evolution and repetitive DNA Silva, M. R. da Matoso, D. A. Artoni, Roberto Ferreira Feldberg, Eliana Gymnotus Teleostei Animals Biological Model In Situ Hybridization, Fluorescence Genetics Gymnotiformes Karyotyping Evolution, Molecular Nucleotide Repeat Sex Chromosome Species Difference Animal Evolution, Molecular Gymnotiformes In Situ Hybridization, Fluorescence Karyotyping Models, Genetic Repetitive Sequences, Nucleic Acid Sex Chromosomes Species Specificity Antagonist sexual selection is the driving force behind the origin and diversification of sex chromosomes such as XX/XY and ZZ/ZW. However, chromosome mobility, mainly in fishes, may result in the formation of chromosomes of recent origin, a process known as turnover. The family Gymnotidae, which is composed of the genera Electrophorus+Gymnotus, presents a multiple system of the type X1X1X2X2/X1X2Y, which has been described for Gymnotus pantanal. This article describes the karyotype of three Amazon Gymnotus species, revealing the presence of both simple and multiple systems: Gymnotus carapo "Catalaõ" 2n=40 XX/XY, Gymnotus coropinae 2n=49/50 X1X1X2X2/X1X2Y, and Gymnotus sp. "Negro" 2n=50 XX/XY. Our hypothesis is that the simple system present in G. carapo "Catalaõ" is ancestral in relation to G. pantanal's multiple system and that the diversification of the subsequent multiple system occurred after the final separation of the Amazon and Paraná basins. Moreover, G. coropinae's multiple system may have originated from the simple system present in Gymnotus sp. "Negro." The distant position between the species in the Gymnotidae family's phylogeny in addition to differences in sex chromosome formula and number between Clade G1 G. coropinae and G. sp. "Negro" species and "Carapo" Clade. G. carapo and G. pantanal species suggest that both sequences of sexual systems occurred independently, supporting other proposed models and highlighting the fact that species of the genus Gymnotus may serve as a model for studying sex chromosome turnover. © 2014 Mary Ann Liebert, Inc. 2020-06-15T21:48:50Z 2020-06-15T21:48:50Z 2014 Artigo https://repositorio.inpa.gov.br/handle/1/17694 10.1089/zeb.2013.0966 en Volume 11, Número 6, Pags. 528-535 Restrito Zebrafish |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Gymnotus Teleostei Animals Biological Model In Situ Hybridization, Fluorescence Genetics Gymnotiformes Karyotyping Evolution, Molecular Nucleotide Repeat Sex Chromosome Species Difference Animal Evolution, Molecular Gymnotiformes In Situ Hybridization, Fluorescence Karyotyping Models, Genetic Repetitive Sequences, Nucleic Acid Sex Chromosomes Species Specificity |
| spellingShingle |
Gymnotus Teleostei Animals Biological Model In Situ Hybridization, Fluorescence Genetics Gymnotiformes Karyotyping Evolution, Molecular Nucleotide Repeat Sex Chromosome Species Difference Animal Evolution, Molecular Gymnotiformes In Situ Hybridization, Fluorescence Karyotyping Models, Genetic Repetitive Sequences, Nucleic Acid Sex Chromosomes Species Specificity Silva, M. R. da New approach data in electric fish (Teleostei: Gymnotus): Sex chromosome evolution and repetitive DNA |
| topic_facet |
Gymnotus Teleostei Animals Biological Model In Situ Hybridization, Fluorescence Genetics Gymnotiformes Karyotyping Evolution, Molecular Nucleotide Repeat Sex Chromosome Species Difference Animal Evolution, Molecular Gymnotiformes In Situ Hybridization, Fluorescence Karyotyping Models, Genetic Repetitive Sequences, Nucleic Acid Sex Chromosomes Species Specificity |
| description |
Antagonist sexual selection is the driving force behind the origin and diversification of sex chromosomes such as XX/XY and ZZ/ZW. However, chromosome mobility, mainly in fishes, may result in the formation of chromosomes of recent origin, a process known as turnover. The family Gymnotidae, which is composed of the genera Electrophorus+Gymnotus, presents a multiple system of the type X1X1X2X2/X1X2Y, which has been described for Gymnotus pantanal. This article describes the karyotype of three Amazon Gymnotus species, revealing the presence of both simple and multiple systems: Gymnotus carapo "Catalaõ" 2n=40 XX/XY, Gymnotus coropinae 2n=49/50 X1X1X2X2/X1X2Y, and Gymnotus sp. "Negro" 2n=50 XX/XY. Our hypothesis is that the simple system present in G. carapo "Catalaõ" is ancestral in relation to G. pantanal's multiple system and that the diversification of the subsequent multiple system occurred after the final separation of the Amazon and Paraná basins. Moreover, G. coropinae's multiple system may have originated from the simple system present in Gymnotus sp. "Negro." The distant position between the species in the Gymnotidae family's phylogeny in addition to differences in sex chromosome formula and number between Clade G1 G. coropinae and G. sp. "Negro" species and "Carapo" Clade. G. carapo and G. pantanal species suggest that both sequences of sexual systems occurred independently, supporting other proposed models and highlighting the fact that species of the genus Gymnotus may serve as a model for studying sex chromosome turnover. © 2014 Mary Ann Liebert, Inc. |
| format |
Artigo |
| author |
Silva, M. R. da |
| author2 |
Matoso, D. A. Artoni, Roberto Ferreira Feldberg, Eliana |
| author2Str |
Matoso, D. A. Artoni, Roberto Ferreira Feldberg, Eliana |
| title |
New approach data in electric fish (Teleostei: Gymnotus): Sex chromosome evolution and repetitive DNA |
| title_short |
New approach data in electric fish (Teleostei: Gymnotus): Sex chromosome evolution and repetitive DNA |
| title_full |
New approach data in electric fish (Teleostei: Gymnotus): Sex chromosome evolution and repetitive DNA |
| title_fullStr |
New approach data in electric fish (Teleostei: Gymnotus): Sex chromosome evolution and repetitive DNA |
| title_full_unstemmed |
New approach data in electric fish (Teleostei: Gymnotus): Sex chromosome evolution and repetitive DNA |
| title_sort |
new approach data in electric fish (teleostei: gymnotus): sex chromosome evolution and repetitive dna |
| publisher |
Zebrafish |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/17694 |
| _version_ |
1787141325452214272 |
| score |
11.675088 |