Table 5.
Rate of inbreeding (%) with different 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% |
|
1.34 (0.04) |
1.46 (0.04) |
1.50 (0.05) |
1.45 (0.04) |
1.52 (0.04) |
1.50 (0.05) |
| 10% |
|
1.36 (0.02) |
1.40 (0.03) |
1.48 (0.04) |
1.42 (0.03) |
1.45 (0.03) |
1.42 (0.03) |
| 17% |
|
1.39 (0.03) |
1.46 (0.04) |
1.42 (0.04) |
1.36 (0.03) |
1.33 (0.03) |
1.37 (0.02) |
| 20% |
|
1.36 (0.02) |
1.33 (0.03) |
1.35 (0.03) |
1.37 (0.03) |
1.37 (0.03) |
1.38 (0.03) |
| 25% |
|
1.33 (0.03) |
1.32 (0.03) |
1.32 (0.03) |
1.34 (0.03) |
1.31 (0.03) |
1.35 (0.03) |
| 50% |
|
1.34 (0.03) |
1.24 (0.03) |
1.23 (0.03) |
1.17 (0.02) |
1.21 (0.03) |
1.21 (0.02) |
| 100% | 1.31 (0.03) | 1.32 (0.03) | 1.22 (0.02) | 1.24 (0.03) | 1.17 (0.02) | 1.12 (0.03) | 1.18 (0.03) |
Selection was on a combination of conventional BLUP family breeding values and within family genomic breeding values (W-FAM) at different marker densities. Rate of inbreeding obtained by the conventional breeding strategy (CONV) was included for comparison. Standard errors are given in parentheses.