Genomic predictions based on animal models using genotype imputation on a national scale in Norwegian Red cattle
作者: Theo H. E. MeuwissenMorten SvendsenTrygve SolbergJørgen Ødegård
作者单位: 1Norwegian University of Life Sciences
3Aqua Aqua Gen AS
刊名: Genetics Selection Evolution, 2015, Vol.47 (1)
来源数据库: Springer Nature Journal
DOI: 10.1186/s12711-015-0159-8
英文摘要: Abstract(#br) Background(#br)In dairy cattle, current genomic predictions are largely based on sire models that analyze daughter yield deviations of bulls, which are derived from pedigree-based animal model evaluations (in a two-step approach). Extension to animal model genomic predictions (AMGP) is not straightforward, because most of the animals that are involved in the genetic evaluation are not genotyped. In single-step genomic best linear unbiased prediction (SSGBLUP), the pedigree-based relationship matrix A and the genomic relationship matrix G are combined in a matrix H , which allows for AMGP. However, as the number of genotyped animals increases, imputation of the genotypes for all animals in the pedigree may be considered. Our aim was to impute genotypes for all animals in the...
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影响因子:2.859 (2012)

  • imputation 分配
  • national 国家的
  • Norwegian 挪威
  • cattle 
  • scale 度盘
  • animal 动物的
  • based 基于
  • genotype 属型