TABLE 4.
Genotypic selection gradients estimated from BLUPS, estimated separately for RILs with alternate erecta alleles
| Col erecta
|
Ler erecta
|
|||||
|---|---|---|---|---|---|---|
| Trait | β (SE) | P | β (SE) | P | Genetic σ | Phenotypic σ |
| Bolting time | −0.0073 (0.01) | 0.49 | 0.0004 (0.06) | 0.95 | 2.41 | 4.35 |
| Rosette diameter | 0.415 (0.15) | 0.012 | 0.185 (0.07) | 0.015 | 0.19 | 0.47 |
| Inflorescence branches | 0.212 (0.08) | 0.017 | 0.092 (0.03) | 0.0027 | 0.43 | 1.31 |
| Basal branches | 0.258 (0.09) | 0.010 | 0.20 (0.04) | <0.0001 | 0.26 | 2.03 |
For Col erecta A, N = 29 lines; for Ler erecta, N = 59 lines. For purposes of comparison, genetic and phenotypic standard deviations for the traits are also provided (calculated from the entire data set). Significant selection gradients are shown in boldface type.