Abstract: The invention relates to methods of predicting resistance to Piscirickettsia salmonis infection in a salmonid, the method comprising determining in the salmonid the alleles present at one or more DNA polymorphism within a QTL, and predicting the ability of the salmonid to be resistant to Piscirickettsia salmonis infection based on the determination of the alleles, wherein the QTL is: —(a) located in linkage group 21 (GenBank ID NC 034194.1) within the coho salmon genome, or in the chromosome of coho salmon that corresponds to that linkage group, when the salmonid is a coho salmon, or; (b) a QTL that is located in a linkage group that corresponds to linkage group 21 within the coho salmon genome, or in the chromosome of a salmonid that corresponds to that linkage group, when the salmonid is not a coho salmon. The invention further relates to probes and arrays useful in such method and related methods.

Abstract: The present invention relates generally to single nucleotide polymorphisms (SNP) associated with increased resistance of a rainbow trout (Oncorhynchus mykiss) to infectious pancreatic necrosis (IPN). In particular, the present invention provides methods for predicting increased resistance of a rainbow trout to infectious pancreatic necrosis (IPN) and methods for selecting a rainbow trout having increased resistant to infectious pancreatic necrosis. The present invention further provides rainbow trout, rainbow trout cells and populations thereof carrying at least one allele conferring IPN resistance (“IPN resistance allele”) in their genome as well as nucleic acid molecules comprising nucleotide sequences associated with the SNPs of the present invention.

Abstract: The invention relates to methods of predicting resistance to Piscirickettsia salmonis infection in a salmonid, the method comprising determining in the salmonid the alleles present at one or more DNA polymorphism within a QTL, and predicting the ability of the salmonid to be resistant to Piscirickettsia salmonis infection based on the determination of the alleles, wherein the QTL is: (a) located in linkage group 21 (GenBank ID NC_034194.1) within the coho salmon genome, or in the chromosome of coho salmon that corresponds to that linkage group, when the salmonid is a coho salmon, or; (b) a QTL that is located in a linkage group that corresponds to linkage group 21 within the coho salmon genome, or in the chromosome of a salmonid that corresponds to that linkage group, when the salmonid is not a coho salmon. The invention further relates to probes and arrays useful in such method and related methods.

Abstract: The present invention relates generally to single nucleotide polymorphisms (SNP) associated with increased resistance of a rainbow trout (Oncorhynchus mykiss)to infectious pancreatic necrosis (IPN). In particular, the present invention provides methods for predicting increased resistance of a rainbow trout to infectious pancreatic necrosis (IPN)and methods for selecting a rainbow trout having increased resistant to infectious pancreatic necrosis. The present invention further provides rainbow trout, rainbow trout cells and populations thereof carrying at least one allele conferring IPN resistance (“IPN resistance allele”) in their gen ome as well as nucleic acid molecules comprising nucleotide sequences associated with the SNPs of the present invention.