Genetic diversity of the carp oedema virus in France

© 2021 John Wiley & Sons Ltd.

Bibliographische Detailangaben
Veröffentlicht in:Journal of fish diseases. - 1998. - 44(2021), 10 vom: 20. Okt., Seite 1531-1542
1. Verfasser: Baud, Marine (VerfasserIn)
Weitere Verfasser: Pallandre, Laurane, Almeras, Fabrice, Maillet, Loeiz, Stone, David, Bigarré, Laurent
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Journal of fish diseases
Schlagworte:Journal Article Poxviridae carp indel infectious disease microsatellite recombination
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520 |a The koi sleepy disease of carp caused by the carp oedema virus (CEV) was observed on farms and in ponds in France since the 2010s. Samples of CEV collected in France over a period of eight years were characterized at the molecular level by sequencing the partial p4a gene. All the sequences, except one, fell into two well-defined genogroups. Sequences obtained from CEV detected in common carp generally clustered in genogroup I and sequences from CEV detected in the koi were assigned to genogroup II. A particular sample was different to the others and represented a putative new genogroup possibly arose from a recombination event between a genogroup II sequence and one from an unknown genogroup. Compared with sequences from CEV of other countries, most of the French sequences exhibited high degree of DNA identities with those published previously, indicating identical sources of viruses. The sequence diversity suggests multiple introductions of the viruses in France. Among the French sequences, two genogroup-specific molecular markers were identified. One was an insertion/deletion identified within a microsatellite and other was a group of single nucleotide polymorphisms. CEV seems to generate genetic diversity via diverse mechanisms: substitutions, indels and recombination events 
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700 1 |a Almeras, Fabrice  |e verfasserin  |4 aut 
700 1 |a Maillet, Loeiz  |e verfasserin  |4 aut 
700 1 |a Stone, David  |e verfasserin  |4 aut 
700 1 |a Bigarré, Laurent  |e verfasserin  |4 aut 
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