Genomic Predictions and Genome-Wide Association Study of Resistance Against Piscirickettsia salmonis in Coho Salmon (Oncorhynchus kisutch) Using ddRAD Sequencing

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorBarria, Agustin-
Autor(es): dc.creatorChristensen, Kris A.-
Autor(es): dc.creatorYoshida, Grazyella M.-
Autor(es): dc.creatorCorrea, Katharina-
Autor(es): dc.creatorJedlicki, Ana-
Autor(es): dc.creatorLhorente, Jean P.-
Autor(es): dc.creatorDavidson, William S.-
Autor(es): dc.creatorYanez, Jose M.-
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Descrição: dc.descriptionNational Commission of Scientific and Technologic Research (CONICYT)-
Descrição: dc.descriptionGovernment of Canada-
Descrição: dc.descriptionU-Inicia grant, from the Vicerrectoria de Investigacion y Desarrollo, Universidad de Chile-
Descrição: dc.descriptiongrant FON-DEF NEWTON-PICARTE - CONICYT (Government of Chile)-
Descrição: dc.descriptionNewton Fund - The British Council (Government of United Kingdom)-
Descrição: dc.descriptionNucleo Milenio INVASAL from Iniciativa Cientifica Milenio (Ministerio de Economia, Fomento y Turismo, Gobierno de Chile)-
Descrição: dc.descriptiongovernment of Canada through Genome Canada-
Descrição: dc.descriptionGenome British Columbia-
Descrição: dc.descriptionGenome Quebec-
Descrição: dc.descriptiongrant FON-DEF NEWTON-PICARTE - CONICYT (Government of Chile): IT14I10100-
Descrição: dc.descriptionPiscirickettsia salmonis is one of the main infectious diseases affecting coho salmon (Oncorhynchus kisutch) farming, and current treatments have been ineffective for the control of this disease. Genetic improvement for P. salmonis resistance has been proposed as a feasible alternative for the control of this infectious disease in farmed fish. Genotyping by sequencing (GBS) strategies allow genotyping of hundreds of individuals with thousands of single nucleotide polymorphisms (SNPs), which can be used to perform genome wide association studies (GWAS) and predict genetic values using genome-wide information. We used double-digest restriction-site associated DNA (ddRAD) sequencing to dissect the genetic architecture of resistance against P. salmonis in a farmed coho salmon population and to identify molecular markers associated with the trait. We also evaluated genomic selection (GS) models in order to determine the potential to accelerate the genetic improvement of this trait by means of using genome-wide molecular information. A total of 764 individuals from 33 full-sib families (17 highly resistant and 16 highly susceptible) were experimentally challenged against P. salmonis and their genotypes were assayed using ddRAD sequencing. A total of 9,389 SNPs markers were identified in the population. These markers were used to test genomic selection models and compare different GWAS methodologies for resistance measured as day of death (DD) and binary survival (BIN). Genomic selection models showed higher accuracies than the traditional pedigree-based best linear unbiased prediction (PBLUP) method, for both DD and BIN. The models showed an improvement of up to 95% and 155% respectively over PBLUP. One SNP related with B-cell development was identified as a potential functional candidate associated with resistance to P. salmonis defined as DD.-
Formato: dc.format1183-1194-
Idioma: dc.languageen-
Publicador: dc.publisherGenetics Society America-
Relação: dc.relationG3-genes Genomes Genetics-
Relação: dc.relation1,764-
Direitos: dc.rightsopenAccess-
Palavras-chave: dc.subjectselective breeding-
Palavras-chave: dc.subjectgenotyping by sequencing-
Palavras-chave: dc.subjectOncorhynchus kisutch-
Palavras-chave: dc.subjectdisease resistance-
Palavras-chave: dc.subjectGWAS-
Palavras-chave: dc.subjectGenomic Selection-
Palavras-chave: dc.subjectGenPred-
Palavras-chave: dc.subjectShared Data Resources-
Título: dc.titleGenomic Predictions and Genome-Wide Association Study of Resistance Against Piscirickettsia salmonis in Coho Salmon (Oncorhynchus kisutch) Using ddRAD Sequencing-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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