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Article Dans Une Revue Veterinary Research Année : 2014

Diversity of avipoxviruses in captive-bred Houbara bustard

Guillaume Le Loc’h
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Mariette F Ducatez
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Christelle Camus-Bouclainville
Jean-Luc Guérin
Stéphane Bertagnoli
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Résumé

Implementation of conservation breeding programs is a key step to ensuring the sustainability of many endangered species. Infectious diseases can be serious threats for the success of such initiatives especially since knowledge on pathogens affecting those species is usually scarce. Houbara bustard species (Chlamydotis undulata and Chlamydotis macqueenii), whose populations have declined over the last decades, have been captive-bred for conservation purposes for more than 15 years. Avipoxviruses are of the highest concern for these species in captivity. Pox lesions were collected from breeding projects in North Africa, the Middle East and Central Asia for 6 years in order to study the diversity of avipoxviruses responsible for clinical infections in Houbara bustard. Molecular and phylogenetic analyses of 113 and 75 DNA sequences for P4b and fpv140 loci respectively, revealed an unexpected wide diversity of viruses affecting Houbara bustard even at a project scale: 17 genotypes equally distributed between fowlpox virus-like and canarypox virus-like have been identified in the present study. This suggests multiple and repeated introductions of virus and questions host specificity and control strategy of avipoxviruses. We also show that the observed high virus burden and co-evolution of diverse avipoxvirus strains at endemic levels may be responsible for the emergence of novel recombinant strains.
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Origine : Publication financée par une institution
Origine : Publication financée par une institution
Origine : Publication financée par une institution
Origine : Publication financée par une institution
Origine : Publication financée par une institution
Origine : Publication financée par une institution
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hal-01290594 , version 1 (18-03-2016)

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Guillaume Le Loc’h, Mariette F Ducatez, Christelle Camus-Bouclainville, Jean-Luc Guérin, Stéphane Bertagnoli. Diversity of avipoxviruses in captive-bred Houbara bustard. Veterinary Research, 2014, 45 (1), pp.98. ⟨10.1186/s13567-014-0098-3⟩. ⟨hal-01290594⟩

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