Please use this identifier to cite or link to this item: http://repositorio.ufpa.br/jspui/handle/2011/2217
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Type: Artigo de Periódico
Issue Date: 2006
Authors: SOUZA, Marcelo Nazareno Vallinoto de
SILVA, Juliana Araripe Gomes da
RÊGO, Péricles Sena do
TAGLIARO, Claudia Helena
SAMPAIO, Maria Iracilda da Cunha
SCHNEIDER, Horacio
Title: Tocantins river as an effective barrier to gene flow in Saguinus niger populations
Citation: VALLINOTO, Marcelo et al. Tocantins river as an effective barrier to gene flow in Saguinus niger populations. Genetics and Molecular Biology, São Paulo, v. 29, n. 2, p. 215-219, 2006. Disponível em: <http://www.scielo.br/pdf/gmb/v29n2/a05v29n2.pdf>. Acesso em: 15 mar. 2011. <http://dx.doi.org/10.1590/S1415-47572006000200005>.
Abstract: The Saguinus represent the basal genus of the Callitrichinae subfamily. Traditionally this genus is divided into three groups: Hairy, Mottled and Bare-face, however, molecular data failed to validate these groups as monophyletic units, as well as raised some subspecies to the species status. This is the case of the former subspecies Saguinus midas midas and S. midas niger, which are now considered as different species. In the present study, we sequenced a portion of the D-loop mtDNA region in populations from the East bank of the Xingu and from both banks of the Tocantins river, in order to test the effectiveness of large rivers as barriers to the gene flow in Saguinus. According to our results, the populations from the East and West banks of the Tocantins river are more divergent than true species like S. mystax and S. imperator. The Tocantins river may be acting as a barrier to gene flow, and consequently these very divergent populations may represent distinct taxonomic entities (species?).
Keywords: Saguinus
Filogenia molecular
Primata
Rio Tocantins - PA
Pará - Estado
Amazônia Brasileira
ISSN: 1415-4757
Appears in Collections:Artigos Científicos - FBIO/IECOS

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