Lunney, Joan K., and Hongbo Chen. "Genetic control of host resistance to porcine reproductive and respiratory syndrome virus (PRRSV) infection." Virus research (2010) - accepted manuscript
ABSTRACT This manuscript focuses on the advances made using genomic approaches to identify biomarkers that define genes and pathways that are correlated with swine resistance to infection with porcine reproductive and respiratory syndrome virus (PRRSV), the most economically important swine viral pathogen worldwide. International efforts are underway to assess resistance and susceptibility to infectious pathogens using tools such as gene arrays, single nucleotide polymorphisms (SNPs) chips, genome-wide association studies (GWAS), proteomics,and advanced bioinformatics. These studies should identify new candidate genes and biological pathways associated with host PRRS resistance and alternate viral disease processes and mechanisms; they may unveil biomarkers that account for genetic control of PRRS or, alternately, that reveal new targets for therapeutics or vaccines. Previous genomic approaches have expanded our understanding of quantitative trait loci (QTL) controlling traits of economic importance in pig production, e.g., feed efficiency, meat production, leanness; only recently have these included health traits and disease resistance. Genomic studies should have substantial impact for the pig industry since it is now possible to include the use of biomarkers for basic health traits along side broader set of markers utilized for selection of pigs for improved performance and reproductive traits, as well as pork quality. Additionally these studies may reveal alternate PRRSV control mechanisms that can be exploited for novel drugs, bio-therapeutics and vaccine designs.
Keywords: genetic resistance to PRRS; genetic susceptibility to PRRS; biomarkers; genomic approaches; single nucleotide polymorphisms (SNPs), genome-wide association studies (GWAS)
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