Table 3.
Response to selection (R) for total yield per plant and yield components using whole marker dataset for a Bayesian ridge regression model. The top 20 selection candidates (genotypes) with the highest phenotypic value (PV) and genomic estimated breeding values (GEBV), corresponding to a selection intensity of 10%, were selected for phenotypic selection (PS) and genomic selection (GS), respectively. The top 10% selection candidates with the highest PV and GEBV from PS and GS were selected in PS + GS.
| Trait | H 2 1 | Mean population without selection | Mean population with selection | Selection differential, S2 | Response to selection, R3 | Percent change relative to PS, R | No. of selection candidates selected (%) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PS | GS | PS + GS | PS | GS | PS + GS | PS | GS | PS + GS | PS | GS | PS + GS | PS + GS | ||||
| Mature green | 0.58 | 0.34 | 0.35 | 0.35 | 0.36 | 0.01 | 0.01 | 0.02 | 0.01 | 0.01 | 0.01 | - | 0 | 0 | 11 (55%) | |
| Mature red | 0.32 | 0.50 | 0.69 | 0.57 | 0.71 | 0.19 | 0.07 | 0.21 | 0.06 | 0.02 | 0.07 | - | -67% | 17% | 9 (45%) | |
| Ten pod weight | 0.88 | 0.36 | 0.77 | 0.76 | 0.8 | 0.41 | 0.4 | 0.44 | 0.36 | 0.35 | 0.39 | - | -3% | 8% | 17 (85%) | |
| Total yield per plant | 0.20 | 0.82 | 1.11 | 1.02 | 1.21 | 0.29 | 0.20 | 0.39 | 0.06 | 0.04 | 0.08 | - | -33% | 33% | 9 (45%) | |
1 Broad-sense heritability (H2) values reported by Lozada et al. [30]
2 Selection differential, S = µpop. with selection - µpop. without selection
3 Response to selection, R = H2S