Journal
COMPTES RENDUS BIOLOGIES
Volume 333, Issue 1, Pages 11-16Publisher
centre Mersenne pour ldition scientifique ouverte
DOI: 10.1016/j.crvi.2009.10.003
Keywords
Anthropology; COI; Cytochrome c oxidase subunit 1; Cytochrome b; Phylogenetics; Primatology
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Funding
- Ministry of Science, Research and Technology of the Islamic Republic of Iran
- Oxford Brookes University Research Mentor Scheme
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For comparative primatology proper recognition of basal taxa (i.e. species) is indispensable, and in this the choice of a suitable gene with high phylogenetic resolution is crucial. For the goals of species identification in animals, the cytochrome c oxidase subunit 1 (cox1) has been introduced as standard marker. Making use of the difference in intra- and interspecific genetic variation - the DNA barcoding gap - cox1 can be used as a fast and accurate marker for the identification of animal species. For the Order Primates we compare the performance of cox1 (166 sequences; 50 nominal species) in species-identification with that of two other mitochondrial markers, 16S ribosomal RNA (412 sequences, 92 species) and cytochrome b (cob: 547 sequences, 72 species). A wide gap exist between intra- and interspecific divergences for both cox1 and cob genes whereas this gap is less apparent for 165, indicating that rRNA genes are less suitable for species delimitation in DNA barcoding. For those species where multiple sequences are available there are significant differences in the intraspecific genetic distances between different mitochondrial markers, without, however, showing a consistent pattern. We conclude that cox1 allows accurate differentiation of species and as such DNA barcoding may have an important role to play in comparative primatology. (C) 2009 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.
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