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Partial molecular characterisation of New World non-human primate lymphocryptoviruses.

Abstract : The description of numerous viruses belonging to the Lymphocryptovirus genus from different Old and New World non-human primate species during the past 10 years has led to developing and supporting co-speciational evolution hypotheses for these viruses and their hosts. Among the different primate species tested, only a few were from the New World. This study attempted to achieve a better understanding of the evolutionary processes within the Platyrrhini branch. Molecular screening of 253 blood DNA samples from 20 New World non-human primate species from Central and South America was carried out using polymerase chain reaction amplification with degenerate consensus primers targeting highly conserved amino acid motifs of the herpesvirus DNA polymerase gene. In addition to the 33 samples from which we have already described three lymphocryptoviruses, amplification products were detected in 17 other samples originating from 11 species (13 sub-species). BLAST searches, pairwise nucleotide and amino acid sequence comparisons, and phylogenetic analyses confirm that they all belong to the Lymphocryptovirus genus. Fourteen distinct Lymphocryptovirus sequences were detected, of which nine have never been reported. Phylogenetic analyses showed that, as expected, the New World virus lineage formed a sister clade to that of the Old World viruses. The parallel determination of the host taxa has demonstrated a good correlation between the distinct monophyletic clades of viruses and the infected primates at the sub-family level. In addition, these results further suggest the existence of two distinct groups within the Cebidae for Saimirinae and Cebinae primates. Nevertheless, based on the current genetic data, this study fell short of achieving a tree that was completely resolved within the lineage of Platyrrhini viruses. Further studies will be needed to better assess the evolutionary relationships between these viruses.
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Contributor : Vincent Lacoste Connect in order to contact the contributor
Submitted on : Tuesday, September 6, 2011 - 7:32:39 PM
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Anne Lavergne, Benoît de Thoisy, Jean-François Pouliquen, Manuel Ruiz-García, Vincent Lacoste. Partial molecular characterisation of New World non-human primate lymphocryptoviruses.. Infection, Genetics and Evolution, Elsevier, 2011, 11 (7), pp.1782-1789. ⟨10.1016/j.meegid.2011.07.017⟩. ⟨pasteur-00619816⟩



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