alexa Molecular systematics and phylogeography of the genus Lagothrix (Atelidae, Primates) by means of the mitochondrial COII gene.
Bioinformatics & Systems Biology

Bioinformatics & Systems Biology

Journal of Phylogenetics & Evolutionary Biology

Author(s): RuizGarcia M, PinedoCastro MO, RuizGarcia M, PinedoCastro MO

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Abstract We propose the first molecular systematic hypothesis on the origin and evolution of Lagothrix taxa based on an analysis of 720 base pairs of the cytochrome c oxidase subunit II mitochondrial gene in 97 Lagothrix specimens. All the current Lagothrix forms probably descended from the ancestor L. poeppigii or perhaps (less probably) that of L. lugens. We detected at least 2 lineages in L. poeppigii. L. cana and L. lagotricha were determined to be monophyletic and had lower gene diversity levels compared to L. poeppigii and L. lugens. The most basal ancestors of the current L. poeppigii lineages diverged from the other Lagothrix taxa around 2.5 million years ago, at the end of the Pliocene or at the beginning of the Pleistocene. Clearly, L. cana and L. lagotricha were the 2 most recently derived Lagothrix taxa. The diversification within L. lugens and L. poeppigii may coincide with the first and second Pleistocene glacial periods, respectively, while the diversification within L. cana and L. lagotricha could have occurred in the last 400,000 years, coinciding with the climatological changes provoked by the Illinois-Riss (third) and Wisconsin-Würm (fourth) glaciations. Copyright © 2010 S. Karger AG, Basel. This article was published in Folia Primatol (Basel) and referenced in Journal of Phylogenetics & Evolutionary Biology

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