Genetic characterization of native and introduced populations of the neotropical cichlid genus Cichla in Brazil

• Autor(a) principal: Carvalho,Daniel Cardoso de
• Data de Publicação: 2009
• Outros Autores: Oliveira,Denise Aparecida Andrade de, Santos,José Enemir dos, Teske,Peter, Beheregaray,Luciano B., Schneider,Horacio, Sampaio,Iracilda
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Genetics and Molecular Biology
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000300025
• topic: peacock bass or tucunaré; mtDNA; invasive populations; Amazon basin; Minas Gerais

A molecular phylogenetic analysis based on mitochondrial 16S ribosomal DNA and Control Region sequences from native and introduced populations was undertaken, in order to characterize the introduction of Cichla (peacock bass or tucunaré) species in Brazil. Mitochondrial DNA haplotypes found in introduced fish from Minas Gerais state (southeastern Brazil) clustered only with those from native species of the Tocantins River (Cichla piquiti and C. kelberi), thereby suggesting a single or, at most, few translocation acts in this area, even though with fish from the same source-population. Our study contributes to an understanding of the introduction of Cichla in regions of Brazil outside the Amazon basin, and adds phylogenetic data to the recently describe Cichla species, endemic from the Tocantins-Araguaia basin.