Table 4.
Total genetic gain (σg) for various marker densities and levels of pre-selection for within-family selection
|
Pre-selected |
CONV |
Marker density (markers per Morgan) |
|||||
|---|---|---|---|---|---|---|---|
| 3 | 6 | 12 | 25 | 50 | 100 | ||
| 3% |
|
1.71 (0.011) |
1.74 (0.014) |
1.75 (0.014) |
1.77 (0.013) |
1.78 (0.013) |
1.80 (0.015) |
| 10% |
|
1.74 (0.013) |
1.81 (0.010) |
1.84 (0.013) |
1.84 (0.012) |
1.85 (0.011) |
1.83 (0.011) |
| 17% |
|
1.74 (0.012) |
1.82 (0.016) |
1.84 (0.011) |
1.88 (0.012) |
1.89 (0.012) |
1.91 (0.012) |
| 20% |
|
1.73 (0.013) |
1.82 (0.011) |
1.86 (0.012) |
1.89 (0.012) |
1.89 (0.014) |
1.91 (0.011) |
| 25% |
|
1.75 (0.014) |
1.83 (0.011) |
1.84 (0.011) |
1.90 (0.010) |
1.89 (0.013) |
1.90 (0.011) |
| 50% |
|
1.74 (0.012) |
1.84 (0.010) |
1.90 (0.013) |
1.90 (0.011) |
1.92 (0.015) |
1.92 (0.015) |
| 100% | 1.67 (0.011) | 1.77 (0.015) | 1.84 (0.013) | 1.88 (0.011) | 1.91 (0.012) | 1.92 (0.011) | 1.95 (0.013) |
Selection was on a combination of conventional BLUP family breeding values and within family genomic breeding values (W-FAM) at different marker densities. Genetic gain obtained by the conventional breeding strategy (CONV) was included for comparison. Standard errors are given in parentheses.