Authors
RT Resende, MDV Resende, FF Silva, CF Azevedo, EK Takahashi, OB Silva-Junior, D Grattapaglia
Publication date
2017/10
Journal
Heredity
Volume
119
Issue
4
Pages
245-255
Publisher
Nature Publishing Group
Description
We report a genomic selection (GS) study of growth and wood quality traits in an outbred F 2 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 sets. Predictive abilities (PAs) were 0.40–0.57 for individual selection and 0.56–0.75 for family selection. PAs under an …
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