Genomic prediction of host resistance to sea lice in farmed Atlantic salmon populations.

ABSTRACT:

Background

Sea lice have significant negative economic and welfare impacts on marine Atlantic salmon farming. Since host resistance to sea lice has a substantial genetic component, selective breeding can contribute to control of lice. Genomic selection uses genome-wide marker information to predict breeding values, and can achieve markedly higher accuracy than pedigree-based methods. Our aim was to assess the genetic architecture of host resistance to sea lice, and test the utility of genomic prediction of breeding values. Individual lice counts were measured in challenge experiments using two large Atlantic salmon post-smolt populations from a commercial breeding programme, which had genotypes for ~33 K single nucleotide polymorphisms (SNPs). The specific objectives were to: (i) e

SUBMITTER: Tsai HY 

PROVIDER: S-EPMC4926294 | biostudies-literature | 2016 Jun

REPOSITORIES: biostudies-literature