Comparison of Atlantic salmon individuals with different outcomes of cardiomyopathy syndrome (CMS)

BMC Genomics
Gerrit TimmerhausSven Martin Jørgensen


Cardiomyopathy syndrome (CMS) is a severe disease of Atlantic salmon (Salmo salar L.) associated with significant economic losses in the aquaculture industry. CMS is diagnosed with a severe inflammation and degradation of myocardial tissue caused by a double-stranded RNA virus named piscine myocarditis virus (PMCV), with structural similarities to the Totiviridae family. In the present study we characterized individual host responses and genomic determinants of different disease outcomes. From time course studies of experimentally infected Atlantic salmon post-smolts, fish exhibited different outcomes of infection and disease. High responder (HR) fish were characterized with sustained and increased viral load and pathology in heart tissue. Low responder (LR) fish showed declining viral load from 6-10 weeks post infection (wpi) and absence of pathology. Global gene expression (SIQ2.0 oligonucleotide microarray) in HR and LR hearts during infection was compared, in order to characterize differences in the host response and to identify genes with expression patterns that could explain or predict the different outcomes of disease. Virus-responsive genes involved in early antiviral and innate immune responses were upregulated equall...Continue Reading


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Mar 4, 2014·BMC Physiology·Sven Martin JørgensenHarald Takle
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Datasets Mentioned


Methods Mentioned

feature extraction

Software Mentioned

GenePix Pro
LightCycler® 480

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