Assessing the expected response to genomic selection of individuals and families in Eucalyptus breeding with an additive-dominant model.

ABSTRACT: We report a genomic selection (GS) study of growth and wood quality traits in an outbred F₂ hybrid Eucalyptus population (n=768) using high-density single-nucleotide polymorphism (SNP) genotyping. Going beyond previous reports in forest trees, models were developed for different selection targets, namely, families, individuals within families and individuals across the entire population using a genomic model including dominance. To provide a more breeder-intelligible assessment of the performance of GS we calculated the expected response as the percentage gain over the population average expected genetic value (EGV) for different proportions of genomically selected individuals, using a rigorous cross-validation (CV) scheme that removed relatedness between training and validation

SUBMITTER: Resende RT 

PROVIDER: S-EPMC5597783 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature