Table 3

Quantitative trait loci (QTL) for Gompertz parameter estimates
Chromosome Position (cM) F-ratio1 CI2 Flanking markers Additive effect ± SE Dominance effect ± SE VP (%)
Asymptotic body weight (WA), g
2 283 12.0** 58 -295 ROS0074-ADL0114 150.3 ± 31.0 -18.9 ± 49.0 4.1
3 46 6.5† 1 - 205 MCW0083-HUJ0006 125.9 ± 37.0 71.5 ± 69.2 2.0
3 205 5.4† 2 - 236 ADL0306-ADL0237 106.1 ± 33.9 -67.9 ± 60.8 1.6
4 166 26.7** 143 - 183 ADL0241- MCW0180 352.6 ± 48.7 -137.4 ± 125.2 9.5
7 46 4.4† 0 - 93 LEI0064-ROS0019 65.37 ± 58.8 486.2 ± 175.3 1.3
8 13 8.6* 0 - 86 ROS0026-MCW0305 107.4 ± 28.1 74.3 ± 40.9 1.8
9 46 5.4† 21-115 ROS0078-MCW0135 83.3 ± 39.1 -177.6 ± 74.0 1.6
15 10 5.8† 0 - 45 LEI0083-MCW0080 108.7 ± 34.4 81.6 ± 62.6 1.8
27 0 18.7** - ROS0071 166.6 ± 28.0 46.7 ± 39.2 6.6
Age at inflection (Ti,), d
2 32 6.2† 8 - 376 ADL0343-ADL0176 -3.0 ± 0.9 0.1 ± 2.2 2.5
4 22 5.7† 0 -166 ADL0317-MCW0295 -2.1 ± 0.6 -0.6 ± 1.4 2.3
11 7 8.2* 0 - 63 MCW0097-ROS0111 -1.8 ± 0.5 -1.4 ± 0.8 3.5
Rate of exponential decay (K), g/d
4 17 5.6† 0 -169 ADL0317-MCW0295 8.0 E-4 ± 2.4E-4 3.0 E-4 ± 4.8E-4 2.3
7 93 5.4† 27 - 93 ROS0019-ADL0180 6.0 E-4 ± 1.8E-4 -3.0 E-4 ± 2.7E-4 2.2
28 0 5.0† 0 - 42 ROS0095-ROS0085 -3.0 E-4 ± 1.8E-4 7.0 E-4 ± 2.6E-4 2.0
Instantaneous growth rate (L), g/d
1 541 4.0† 0 - 600 ROS0081-LEI0079 0.002 ± 0.001 0.003 ± 0.002 1.5
4 144 4.9† 0 - 183 ADL0241-MCW0180 0.01 ± 0.0 0.01 ± 0.01 1.9
Hatching weigh (W0),g
8 78 6.2† 7 - 87 MCW0100-ROS0075 5.0 ± 1.5 -4.2 ± 2.7 2.6
13 62 4.9† 7 - 71 MCW0340-ADL0225 4.3 ± 1.4 2.3 ± 2.7 1.9

1Significant at 0.05 (*) and 0.01 (* *) levels experiment-wide, and () suggestive.

2 CI = 95% confidence interval.

The position on the chromosome with supporting F-values, additive and dominance effects and the proportion of phenotypic variance (VP) explained by QTL for an F2 broiler layer cross. Dominance effects in bold are >2 SE (P < 0.05).

Podisi et al.

Podisi et al. BMC Genetics 2013 14:22   doi:10.1186/1471-2156-14-22

Open Data