Table 6. Simulated data for estimated LPSIa and LGSIb parameters constructed with four traits (T1, T2, T3 and T4) without constraints and true maximum responses for seven selection cycles.
LPSI | True maximum | |||||
---|---|---|---|---|---|---|
Estimated expected genetic gain per trait | Estimated maximum | |||||
Cycle | T1 | T2 | T3 | T4 | Response | Response |
1 | 10.42 | −5.47 | 3.78 | 2.04 | 17.81 | 19.63 |
2 | 10.11 | −4.35 | 3.68 | 2.00 | 15.69 | 17.56 |
3 | 9.91 | −4.07 | 3.32 | 1.66 | 14.22 | 16.49 |
4 | 10.94 | −4.31 | 2.57 | 1.42 | 14.34 | 16.32 |
5 | 10.60 | −3.51 | 3.04 | 1.48 | 13.64 | 15.99 |
6 | 10.02 | −3.54 | 2.53 | 1.37 | 12.04 | 14.69 |
7 | 8.77 | −3.49 | 3.14 | 1.38 | 11.61 | 14.90 |
Mean1c | 10.11 | −4.11 | 3.15 | 1.62 | 14.19 | 16.51 |
Mean2d | 2.53 | −1.03 | 0.79 | 0.41 | 3.55 | 4.13 |
LGSI | True maximum | |||||
Estimated expected genetic gain per trait | Estimated maximum | |||||
Cycle | T1 | T2 | T3 | T4 | Response | Response |
1 | 6.60 | −3.50 | 2.70 | 1.60 | 14.40 | 13.26 |
2 | 6.30 | −3.40 | 2.60 | 1.50 | 13.91 | 15.28 |
3 | 6.10 | −3.30 | 2.70 | 1.50 | 13.61 | 15.37 |
4 | 5.60 | −3.10 | 2.30 | 1.30 | 12.30 | 16.05 |
5 | 5.20 | −2.80 | 2.10 | 1.30 | 11.40 | 15.17 |
6 | 4.90 | −2.60 | 1.90 | 1.30 | 10.61 | 14.49 |
7 | 5.20 | −2.70 | 2.10 | 1.20 | 11.21 | 15.82 |
Mean1c | 5.70 | −3.10 | 2.30 | 1.40 | 12.49 | 15.06 |
Mean3e | 3.8 | −2.07 | 1.53 | 0.93 | 8.33 | 10.04 |
Unconstrained Linear Phenotypic Selection Index.
Unconstrained Linear Genomic Selection Index.
Mean1 is the average of the seven selection cycles.
Mean2 = Mean1/ 4 for the LPSI.
Mean3 = Mean1/1.5 for the LGSI, where 4 and 1.5 are the intervals between selection cycles (L) for LPSI and LGSI, respectively. Means 2 and 3 denote the average of the genetic gains per year.