Table 5.
Genotype means, standard errors, P values and estimates of additive and dominance effects for SNP with significant trait associations
| SNP | Genotype means ± se1 | Overall P-value2 | a ± se1,3 | d ± se1,4 | |||
| CAPN316 | CC | CG | GG | ||||
| Tenderometer score, kPa5 | 22.25 ± 1.16 | 24.24 ± 0.7 | 25.18 ± 0.67 | 0.016 | 1.46 ± 0.52** | 0.53 ± 0.61 | |
| Hindquarter weight, kg | 75.67 ± 1.57 | 72.05 ± 0.84 | 71.84 ± 0.77 | 0.04 | -1.92 ± 0.76* | -1.70 ± 0.92 | |
| Tenderness | 6.00 ± 0.16 | 5.79 ± 0.08 | 5.63 ± 0.07 | 0.016 | -0.19 ± 0.08* | -0.03 ± 0.09 | |
| UASMS2 | CC | CT | TT | ||||
| Overall liking | 5.59 ± 0.08 | 5.55 ± 0.08 | 5.80 ± 0.10 | 0.02 | 0.10 ± 0.05* | -0.15 ± 0.06* | |
| DGAT1 | AA | AG | GG | ||||
| Sirloin weight after maturation, kg | 8.31 ± 0.46 | 7.17 ± 0.12 | 7.14 ± 0.11 | 0.04 | -0.59 ± 0.23* | -0.55 ± 0.23* | |
| Sirloin fat depth, mm | 11.11 ± 1.65 | 6.62 ± 0.4 | 6.53 ± 0.33 | 0.05 | -2.29 ± 0.83* | -2.20 ± 0.87 * | |
| GHR | AA | AT | TT | ||||
| Odour | 5.64 ± 0.19 | 5.24 ± 0.08 | 5.16 ± 0.06 | 0.02 | -0.24 ± 0.09** | -0.16 ± 0.11 | |
1 Mean values were adjusted for farm and averaged over sex. Estimate of the effect is expressed in units of the trait
2 P-value for the overall genotype effect
3 Additive effect is estimated as the difference between the 2 homozygous means divided by 2
4 Dominance effect is estimated as the non-additive genetic effects or the deviation of the heterozygote from the mean of the 2 homozygotes
** P < 0.01 and * P < 0.05
5 Units for tenderometer score are kilopascals
6 Associations remain significant following correction for multiple testing (adjusted P-value was 0.01)