Allozymic characterization and evolutionary relationships in the BrazilianAkodon cursor species group (Rodentia-Cricetidae) |
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| Authors: | Tania T Rieger Alfredo Langguth Tania A Weimer |
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| Institution: | 1. Departmento de Genética, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Cx. Postal 15053, 91501-970, Porto Alegre, RS, Brasil
2. Departamento de Sistemática e Ecologia, CCEN, Universidade Federal da Paraiba Campus Universitário, 58059-900, Jo?o Pessoa, PB, Brasil
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| Abstract: | The present study involved an electrophoretic survey of 22 protein loci in 269 individuals belonging to three species of the genusAkodon, A. aff.cursor (2n=16),A. cursor (2n=14/15), andA. montensis (2n=24/25/26), collected in Eastern Brazil. The joint results of gene diversity, genetic distances, phenetic analyses, and phylogenetic trees suggested thatA. aff.cursor has recently separated fromA. cursor and that the three species have experienced a recent chromosomal divergence followed by low allozyme differentiation. These data are in agreement with their classification as sibling species. |
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