Infectious Pancreatic Necrosis (IPN) is one of the most problematic diseases currently affecting the salmon farming industry. To investigate if the previously demonstrated genetic component to IPN resistance includes loci of major effect, a genome-wide QTL scan was performed within commercially bred families that had received a natural IPN challenge following transfer from freshwater to seawater. One major IPN-resistance QTL was located at the genome-wide significance level, with two further QTL that were significant at the suggestive level. The identified QTL have potential for use in marker-assisted selection programmes to improve the resistance of commercial salmon to IPN and reduce disease-related mortality.

R. D Houston, D. R Guy, A. Hamilton, J. Ralph, N. Spreckley, J. B Taggart, B. J McAndrew, Chris S Haley, Stephen C Bishop

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume , , 15.02, 2006
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