Molecular taxonomy and evolutionary hypothesis concerning Astyanax fasciatus (Characiformes, Characidae) from Vila Velha State park and Tibagi and Iguaçu Rivers
A species complex hypothesis involving Astyanax fasciatus from southern Brazil was tested using 12S mtDNA sequences. Phylogenetic inferences were performed with maximum likelihood, maximum parsimony and Bayesian as phylogenetic methods and Hemigrammus bleheri as the outgroup. Besides 11 sequences fr...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2013 |
| País: | Brasil |
| Institución: | Instituto Nacional de Pesquisas da Amazônia (INPA) |
| Repositorio: | Repositório Institucional do INPA |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio:1/14994 |
| Acceso en línea: | https://repositorio.inpa.gov.br/handle/1/14994 |
| Access Level: | acceso abierto |
| Palabra clave: | Dna, Mitochondrial Ribosome Rna Rna, Ribosomal, 12s Astyanax Altiparanae Astyanax Fasciatus Bayes Theorem Brasil Characiformes Dna Sequence Evolution Hemigrammus Bleheri National Park Nonhuman Nucleotide Sequence Parsimony Analysis Phylogeny River Taxonomy Animals Characidae Chemistry Classification Genetics Geography Evolution, Molecular Molecular Genetics Species Difference Animal Molecular Sequence Data Rivers Rna, Ribosomal Sequence Analysis, Dna Species Specificity |
| Sumario: | A species complex hypothesis involving Astyanax fasciatus from southern Brazil was tested using 12S mtDNA sequences. Phylogenetic inferences were performed with maximum likelihood, maximum parsimony and Bayesian as phylogenetic methods and Hemigrammus bleheri as the outgroup. Besides 11 sequences from A. fasciatus, the data set was comprised of other partial 12S sequences including material from Astyanax altiparanae (two sequences) and Astyanax sp (four sequences), both from the Iguaçu River. The hypothesis of an A. fasciatus species complex was reinforced given the close relationship between A. altiparanae and Astyanax sp observed in the Bayesian tree. Consequently, a taxonomic revision is necessary for these species. © FUNPEC-RP. |
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