Table 5.
Quantitative trait loci (QTL) mapped using the F2 line cross regression analysis
| Trait | Chr | Pos (cM) | F-ratio | Additive effect (SE) |
Dominance effect (SE) | Det HS?a |
|---|---|---|---|---|---|---|
| Flesh colour | 26 | 33 | 22.73*** | 0.56 (0.08) | 0.02 (0.14) | Y |
| 6 | 109 | 9.47*** | -0.366 (0.151) | -0.916 (0.267) | Yb | |
| 4 | 57 | 8.65*** | 0.279 (0.079) | -0.254 (0.124) | Y | |
| 5 | 16 | 5.69* | 0.266 (0.082) | -0.091 (0.131) | Yb | |
| 20 | 41 | 5.35* | -0.428 (0.131) | 0 (0.201) | Yb | |
| 7 | 8 | 4.96* | 0.415 (0.133) | -0.049 (0.207) | Y | |
| 1 | 0 | 4.94* | 0.04 (0.125) | -0.57 (0.185) | Yb | |
| 10 | 18 | 4.92* | 0.227 (0.079) | -0.156 (0.12) | ||
| Body weight | 5 | 19 | 14.09*** | 0.321 (0.064) | -0.132 (0.1) | Y |
| 10 | 19 | 12.22*** | 0.345 (0.07) | 0.074 (0.106) | Y | |
| 4 | 4 | 8.96*** | 0.26 (0.064) | 0.152 (0.099) | Y | |
| 7 | 4 | 5.83** | 0.332 (0.105) | -0.155 (0.157) | Y | |
| 18 | 16 | 4.69* | 0.343 (0.128) | -0.331 (0.216) | ||
| 29 | 0 | 4.39* | 0.294 (0.102) | 0.089 (0.152) | Y | |
| 22 | 0 | 4.12* | 0.266 (0.1) | -0.133 (0.142) | ||
| 13 | 58 | 4.07* | 0.15 (0.061) | -0.121 (0.091) | Y | |
| 19 | 0 | 3.43* | 0.267 (0.102) | -0.051 (0.143) | ||
| Length | 10 | 19 | 14.34*** | 2.545 (0.479) | 0.539 (0.726) | Y |
| 4 | 4 | 12.05*** | 2.049 (0.433) | 1.247 (0.673) | Y | |
| 5 | 18 | 11.32*** | 1.938 (0.44) | -1.03 (0.7) | Y | |
| 11 | 17 | 7.44*** | 2.204 (0.605) | 0.931 (1.219) | Y | |
| 13 | 59 | 5.12* | 1.22 (0.405) | -0.554 (0.596) | Y | |
| 19 | 0 | 4.36* | 2.055 (0.696) | -0.412 (0.979) | ||
| 2 | 0 | 4.15* | -0.994 (0.932) | 4.016 (1.59) | ||
| 7 | 6 | 4.09* | 1.824 (0.727) | -1.293 (1.116) | Y | |
| 29 | 0 | 4.07* | 1.911 (0.694) | 0.739 (1.036) | ||
| 22 | 0 | 3.5* | 1.622 (0.681) | -1.013 (0.973) | ||
| Slaughter weight | 5 | 19 | 13.56*** | 0.285 (0.058) | -0.116 (0.091) | Y |
| 10 | 19 | 12.24*** | 0.311 (0.063) | 0.069 (0.096) | Y | |
| 4 | 4 | 9.36*** | 0.241 (0.057) | 0.137 (0.089) | Y | |
| 7 | 4 | 5.92** | 0.303 (0.095) | -0.135 (0.142) | Y | |
| 18 | 16 | 4.67* | 0.313 (0.116) | -0.285 (0.195) | ||
| 13 | 59 | 4.43* | 0.151 (0.054) | -0.066 (0.079) | ||
| 29 | 0 | 4.37* | 0.265 (0.092) | 0.079 (0.137) | ||
| 22 | 0 | 4.09* | 0.242 (0.09) | -0.108 (0.128) | ||
| K-factor | 24 | 48 | 6.69** | 0.044 (0.016) | 0.068 (0.028) | |
| 20 | 52 | 6.86** | -0.052 (0.014) | 0.003 (0.02) | Y | |
| 7 | 8 | 6.12** | 0.052 (0.015) | 0.021 (0.023) | Y | |
| 5 | 31 | 6.15* | 0.026 (0.008) | -0.017 (0.012) | ||
| 10 | 19 | 5.14* | 0.025 (0.01) | -0.029 (0.015) | ||
| 23 | 20 | 4.81* | 0.006 (0.015) | 0.068 (0.022) | ||
| 19 | 0 | 3.72* | 0.037 (0.014) | -0.025 (0.02) | ||
| Dressing % | 17 | 2 | 5.89* | -0.537 (0.173) | -0.412 (0.243) | |
| 13 | 58 | 4.71* | -0.262 (0.101) | -0.272 (0.152) |
*** Genome-wide significant QTL (P < 0.05)
** Chromosome-wide significant QTL (P < 0.01)
* Chromosome-wide significant QTL (P < 0.05)
a Detected using the half-sib analysis
b QTL peak more than 20 cM from QTL peak in half-sib analysis