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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Nuclear DNA variation in spider monkeys (Ateles).

Phylogenetic relationships based on DNA sequence variation for the aldolase A intron V nuclear genomic region were evaluated and compared to phylogenies based on mitochondrial DNA sequence variation among spider monkeys (Ateles). Samples of Ateles ranging from Central America throughout the Amazon Basin were sequenced to determine phylogenetic relationships among geographically widely distributed populations. Analysis of nuclear DNA sequences using parsimony, maximum-likelihood, and genetic distance analyses produced similar phylogenies. Four previously proposed monophyletic species of spider monkeys were: (1) Ateles paniscus, composed of haplotypes from the northeastern Amazon Basin; (2) A. belzebuth, found in the western and southern Amazon Basin; (3) A. hybridus, located primarily along the Magdalena River valley of Colombia; and (4) A. geoffroyi, including all haplotypes found in the Choco region of South America and throughout Central America. The nuclear phylograms were analyzed based on associated bootstrap support and confidence probabilities. Support from the nuclear DNA genome was less robust than support from the mitochondrial DNA data, most likely due to a level of sequence variation, which was 90% less than that of the mitochondrial DNA genome. Nuclear DNA congruencies with mitochondrial DNA-based phylogenies, as supported by the incongruence length difference and winning sites tests, provide further support for the suggested revisions in Ateles taxonomy that are contradictory to long-held taxonomies based on pelage variation.[1]


  1. Nuclear DNA variation in spider monkeys (Ateles). Collins, A.C., Dubach, J.M. Mol. Phylogenet. Evol. (2001) [Pubmed]
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