SciELO - Scientific Electronic Library Online

 
vol.32 número3Molecular cloning and expression analysis of a zebrafish novel zinc finger protein gene rnf141DNA barcoding of Brazilian sea turtles (Testudines) índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Genetics and Molecular Biology

versão impressa ISSN 1415-4757

Resumo

CARVALHO, Daniel Cardoso de et al. Genetic characterization of native and introduced populations of the neotropical cichlid genus Cichla in Brazil. Genet. Mol. Biol. [online]. 2009, vol.32, n.3, pp. 601-607.  Epub 10-Jul-2009. ISSN 1415-4757.  http://dx.doi.org/10.1590/S1415-47572009005000060.

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.

Palavras-chave : peacock bass or tucunaré; mtDNA; invasive populations; Amazon basin; Minas Gerais.

        · texto em Inglês     · pdf em Inglês