Table 3.
Summary of estimates of genetic parameters in the Virginia lines. Estimates are provided for the base population of the Virginia chicken lines (P0) and the F15 generation from the Advanced Intercross Line population (F15)
| Generation | BW56 (mean/σP) | h2 | h2 sweeps (5/20 % FDR) | σAtot | σAsweeps (5/20 % FDR) |
|---|---|---|---|---|---|
| P0 | 797/120 | 0.30 | – | 36.0 | – |
| F15 | 594/132 | 0.46 | 0.19/0.23 | 60.7 | 25.2/30.9 |
P0: Base population for Virginia lines; BW56: 56-day body weight; σP: Sex-averaged residual phenotypic standard deviation; h2: narrow-sense heritability estimated based on realised selection-response (P0; [37]) or pedigree (F15); h2 sweeps: heritability contributed by sweeps associated with BW56 at 5/20 % FDR thresholds; σAtot: Total additive genetic standard deviation; σAsweeps: Additive genetic standard deviation due to selective sweeps associated with BW56 at 5/20 % FDR thresholds