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Molecular data reveal a diverse Astyanax species complex in the upper Iguaçu River

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Astyanax is among the most speciose genera in the Characidae. In this study, molecular markers were used to assess the extent to which some of the commonly recognized Astyanax species of the upper Iguaçu River correspond to natural groups. These results indicate that the diversity of Astyanax has been severely underestimated with several potential cryptic species.

Keywords: Astyanax cryptic species; D-loop; lambari; species complex

Document Type: Research Article


Affiliations: 1: Grupo Integrado de Aqüicultura e Estudos Ambientais, Universidade Federal do Paraná, Curitiba, Paraná, Brazil 2: Grupo de Pesquisa em Ictiofauna, Museu de História Natural Capão da Imbuia, Prefeitura de Curitiba, Rua Professor Benedito Conceição 407, 82810-080 Curitiba, Paraná, Brazil

Publication date: December 1, 2009

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