Table 4.
The accuracy and unbiasedness of genomic prediction of two-trait ssGBLUP in scenarios of different gradients of genetic correlation in 20 replicates of 5-fold cross-validation.
| Genetic correlationb | Trait1a | Trait2a | ||
|---|---|---|---|---|
| Accuracy | Unbiasedness | Accuracy | Unbiasedness | |
| CW-RW (0.84) | 0.703 ± 0.045 | 0.970 ± 0.081 | 0.670 ± 0.036 | 1.009 ± 0.103 |
| CW-CG (0.25) | 0.697 ± 0.051 | 0.953 ± 0.105 | 0.786 ± 0.019 | 1.022 ± 0.166 |
| CW-TG (0.01) | 0.676 ± 0.056 | 0.959 ± 0.079 | 0.736 ± 0.037 | 0.989 ± 0.085 |
| AG-CG (0.75) | 0.760 ± 0.046 | 1.006 ± 0.088 | 0.791 ± 0.035 | 1.026 ± 0.088 |
| AG-RW (0.20) | 0.758 ± 0.047 | 1.002 ± 0.145 | 0.658 ± 0.062 | 0.982 ± 0.142 |
| AG-BH (0.06) | 0.756 ± 0.044 | 1.001 ± 0.168 | 0.688 ± 0.050 | 0.901 ± 0.158 |
a
Trait1 were the traits on the left side of the horizontal line, Trait2 were the traits on the right side of the horizontal line; CW, chest width; RW, rump width; CG, chest girth; TG, tube girth; AG, abdominal girth; BH, body height.
b
Genetic correlation between traits (in parentheses).