Infectious pancreatic necrosis virus (IPNV) serotype Sp is prevalent in Turkish rainbow trout farms

Infectious pancreatic necrosis virus (IPNV) is a common pathogen of rainbow trout (Oncorhynchus mykiss) in Turkey. We found that 455 of 1,676 sample pools tested were IPNV positive. Positive samples were found in all geographical regions where sampling was conducted. Sequence and phylogenetic analys...

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Veröffentlicht in:Journal of fish diseases 2018-01, Vol.41 (1), p.95-104
Hauptverfasser: Büyükekiz, A G, Altun, S, Hansen, E F, Satıcıoğlu, İ B, Duman, M, Markussen, T, Rimstad, E
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container_end_page 104
container_issue 1
container_start_page 95
container_title Journal of fish diseases
container_volume 41
creator Büyükekiz, A G
Altun, S
Hansen, E F
Satıcıoğlu, İ B
Duman, M
Markussen, T
Rimstad, E
description Infectious pancreatic necrosis virus (IPNV) is a common pathogen of rainbow trout (Oncorhynchus mykiss) in Turkey. We found that 455 of 1,676 sample pools tested were IPNV positive. Positive samples were found in all geographical regions where sampling was conducted. Sequence and phylogenetic analyses of VP2 from 30 isolates representing all regions showed that the viruses were highly similar in sequence and grouped within Genogroup 5 (serotype Sp‐A2). No correlations between sequences, sampling sites or geographical origins were identified. Although clinical disease was evident in several farms, analyses of the amino acid sequence of VP2 showed that all virus strains harboured the P217T221 motif, assumed to be associated with low virulence. We conclude that IPNV is prevalent in Turkish rainbow trout farms and that the viruses are very homogenous and likely to be of European origin. Frequent exchange of eggs and live fish within the farming industry may explain the homogeneity of the IPNV.
doi_str_mv 10.1111/jfd.12675
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We found that 455 of 1,676 sample pools tested were IPNV positive. Positive samples were found in all geographical regions where sampling was conducted. Sequence and phylogenetic analyses of VP2 from 30 isolates representing all regions showed that the viruses were highly similar in sequence and grouped within Genogroup 5 (serotype Sp‐A2). No correlations between sequences, sampling sites or geographical origins were identified. Although clinical disease was evident in several farms, analyses of the amino acid sequence of VP2 showed that all virus strains harboured the P217T221 motif, assumed to be associated with low virulence. We conclude that IPNV is prevalent in Turkish rainbow trout farms and that the viruses are very homogenous and likely to be of European origin. 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source MEDLINE; Wiley Online Library Journals Frontfile Complete
subjects Amino Acid Motifs
Amino Acid Sequence
Amino acid sequences
Amino acids
Animals
Aquaculture
Birnaviridae Infections - veterinary
Birnaviridae Infections - virology
DNA
Eggs
Farms
Fish
Fish diseases
Fish Diseases - epidemiology
Fish Diseases - virology
Freshwater fishes
Gangrene
genotype
Geographical distribution
Infectious pancreatic necrosis
Infectious pancreatic necrosis virus
Infectious pancreatic necrosis virus - genetics
Infectious pancreatic necrosis virus - isolation & purification
IPNV
Microbiological strains
Necrosis
Oncorhynchus mykiss
Oncorhynchus mykiss - virology
Pancreas
phylogenetic characterization
Phylogeny
rainbow trout
Regions
Salmon
Sampling
Sequencing
Serogroup
Trout
Turkey - epidemiology
Virulence
Viruses
title Infectious pancreatic necrosis virus (IPNV) serotype Sp is prevalent in Turkish rainbow trout farms
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