Chromosomal polymorphism in two species of Hypancistrus (Siluriformes: Loricariidae): An integrative approach for understanding their biodiversity
Structural chromosome changes are widely described in different vertebrate groups and generate genetic, phenotypic and behavioral diversity. During the evolution of loricariids, several rearrangements (fissions, fusions, inversions) seem to have occurred. Hypancistrus, tribe Ancistrini, are highly d...
| Autor principal: | Silva, M. R. da |
|---|---|
| Outros Autores: | Ribeiro, Emanuell Duarte, Matoso, D. A., Sousa, Leandro M., Hrbek, Tomas, Py-daniel, Lúcia Rapp, Feldberg, Eliana |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Genetica
2020
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| Assuntos: | |
| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/17712 |
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oai:repositorio:1-17712 |
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oai:repositorio:1-17712 Chromosomal polymorphism in two species of Hypancistrus (Siluriformes: Loricariidae): An integrative approach for understanding their biodiversity Silva, M. R. da Ribeiro, Emanuell Duarte Matoso, D. A. Sousa, Leandro M. Hrbek, Tomas Py-daniel, Lúcia Rapp Feldberg, Eliana Hypancistrus Hypancistrus Zebra Loricariidae Siluriformes Vertebrata Animals Catfish Chromosome Chromosome Analysis Chromosome Inversion Classification Diploidy Dna Barcoding Female Genetic Variability Genetics Karyotype Male Evolution, Molecular Phylogeny Rna Gene Animal Catfishes Chromosome Inversion Chromosomes Cytogenetic Analysis Diploidy Dna Barcoding, Taxonomic Evolution, Molecular Female Genes, Rrna Genetic Variation Karyotype Male Phylogeny Structural chromosome changes are widely described in different vertebrate groups and generate genetic, phenotypic and behavioral diversity. During the evolution of loricariids, several rearrangements (fissions, fusions, inversions) seem to have occurred. Hypancistrus, tribe Ancistrini, are highly demanded for fishkeeping around the world. In this tribe, the diploid chromosome number 2n = 52 is considered a synapomorphy, and paracentric-type inversions appear to be involved in the chromosomal evolution of the tribe. The present study investigated the karyotypes of H. zebra and H. cf. debilittera using cytogenetic, classical and molecular tools, as well as DNA barcoding. Data reveal that, although diploid number in both species corroborates the proposed synapomorphy for the tribe, there is a complex karyotype dynamics, reflected in the intense chromosomal polymorphism, resulting from rearrangements involving ribosomal regions (5S and 18S rDNA), which are suggested to be paracentric inversions. Besides, DNA barcode confirms reciprocal monophyletism between the species, validating the existence of two species, only. This scenario, coupled with genomic instability caused by exogenous sequences such as Rex-3 retrotransposons and the species' sedentary lifestyle, which helps the fast polymorphism fixation, may reflect different phenotypic color patterns in natural populations, as observed in H. cf. debilittera. © 2014 Springer International Publishing Switzerland. 2020-06-15T21:48:53Z 2020-06-15T21:48:53Z 2014 Artigo https://repositorio.inpa.gov.br/handle/1/17712 10.1007/s10709-014-9760-y en Volume 142, Número 2, Pags. 127-139 Restrito Genetica |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Hypancistrus Hypancistrus Zebra Loricariidae Siluriformes Vertebrata Animals Catfish Chromosome Chromosome Analysis Chromosome Inversion Classification Diploidy Dna Barcoding Female Genetic Variability Genetics Karyotype Male Evolution, Molecular Phylogeny Rna Gene Animal Catfishes Chromosome Inversion Chromosomes Cytogenetic Analysis Diploidy Dna Barcoding, Taxonomic Evolution, Molecular Female Genes, Rrna Genetic Variation Karyotype Male Phylogeny |
| spellingShingle |
Hypancistrus Hypancistrus Zebra Loricariidae Siluriformes Vertebrata Animals Catfish Chromosome Chromosome Analysis Chromosome Inversion Classification Diploidy Dna Barcoding Female Genetic Variability Genetics Karyotype Male Evolution, Molecular Phylogeny Rna Gene Animal Catfishes Chromosome Inversion Chromosomes Cytogenetic Analysis Diploidy Dna Barcoding, Taxonomic Evolution, Molecular Female Genes, Rrna Genetic Variation Karyotype Male Phylogeny Silva, M. R. da Chromosomal polymorphism in two species of Hypancistrus (Siluriformes: Loricariidae): An integrative approach for understanding their biodiversity |
| topic_facet |
Hypancistrus Hypancistrus Zebra Loricariidae Siluriformes Vertebrata Animals Catfish Chromosome Chromosome Analysis Chromosome Inversion Classification Diploidy Dna Barcoding Female Genetic Variability Genetics Karyotype Male Evolution, Molecular Phylogeny Rna Gene Animal Catfishes Chromosome Inversion Chromosomes Cytogenetic Analysis Diploidy Dna Barcoding, Taxonomic Evolution, Molecular Female Genes, Rrna Genetic Variation Karyotype Male Phylogeny |
| description |
Structural chromosome changes are widely described in different vertebrate groups and generate genetic, phenotypic and behavioral diversity. During the evolution of loricariids, several rearrangements (fissions, fusions, inversions) seem to have occurred. Hypancistrus, tribe Ancistrini, are highly demanded for fishkeeping around the world. In this tribe, the diploid chromosome number 2n = 52 is considered a synapomorphy, and paracentric-type inversions appear to be involved in the chromosomal evolution of the tribe. The present study investigated the karyotypes of H. zebra and H. cf. debilittera using cytogenetic, classical and molecular tools, as well as DNA barcoding. Data reveal that, although diploid number in both species corroborates the proposed synapomorphy for the tribe, there is a complex karyotype dynamics, reflected in the intense chromosomal polymorphism, resulting from rearrangements involving ribosomal regions (5S and 18S rDNA), which are suggested to be paracentric inversions. Besides, DNA barcode confirms reciprocal monophyletism between the species, validating the existence of two species, only. This scenario, coupled with genomic instability caused by exogenous sequences such as Rex-3 retrotransposons and the species' sedentary lifestyle, which helps the fast polymorphism fixation, may reflect different phenotypic color patterns in natural populations, as observed in H. cf. debilittera. © 2014 Springer International Publishing Switzerland. |
| format |
Artigo |
| author |
Silva, M. R. da |
| author2 |
Ribeiro, Emanuell Duarte Matoso, D. A. Sousa, Leandro M. Hrbek, Tomas Py-daniel, Lúcia Rapp Feldberg, Eliana |
| author2Str |
Ribeiro, Emanuell Duarte Matoso, D. A. Sousa, Leandro M. Hrbek, Tomas Py-daniel, Lúcia Rapp Feldberg, Eliana |
| title |
Chromosomal polymorphism in two species of Hypancistrus (Siluriformes: Loricariidae): An integrative approach for understanding their biodiversity |
| title_short |
Chromosomal polymorphism in two species of Hypancistrus (Siluriformes: Loricariidae): An integrative approach for understanding their biodiversity |
| title_full |
Chromosomal polymorphism in two species of Hypancistrus (Siluriformes: Loricariidae): An integrative approach for understanding their biodiversity |
| title_fullStr |
Chromosomal polymorphism in two species of Hypancistrus (Siluriformes: Loricariidae): An integrative approach for understanding their biodiversity |
| title_full_unstemmed |
Chromosomal polymorphism in two species of Hypancistrus (Siluriformes: Loricariidae): An integrative approach for understanding their biodiversity |
| title_sort |
chromosomal polymorphism in two species of hypancistrus (siluriformes: loricariidae): an integrative approach for understanding their biodiversity |
| publisher |
Genetica |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/17712 |
| _version_ |
1787143188400570368 |
| score |
11.674684 |