Genetic structure of sigmodontine rodents (Cricetidae) along an altitudinal gradient of the Atlantic Rain Forest in southern Brazil

AUTOR(ES)

Gonçalves, Gislene Lopes

DATA DE PUBLICAÇÃO

2011

RESUMO

The population genetic structure of two sympatric species of sigmodontine rodents (Oligoryzomys nigripes and Euryoryzomys russatus) was examined for mitochondrial DNA (mtDNA) sequence haplotypes of the control region. Samples were taken from three localities in the Atlantic Rain Forest in southern Brazil, along an altitudinal gradient with different types of habitat. In both species there was no genetic structure throughout their distribution, although levels of genetic variability and gene flow were high.

ASSUNTO(S)

euryoryzomys russatus sigmodontinae dna mitocondrial gene flow mismatch distribution variabilidade genética genética populacional oligoryzomys nigripes population expansion

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