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Table 1 Quantitative trait loci (QTL) for body weight (g) at different ages

From: Comparative analysis of quantitative trait loci for body weight, growth rate and growth curve parameters from 3 to 72 weeks of age in female chickens of a broiler–layer cross

Chromosome Position (cM) F-ratio1 CI2 Flanking markers Additive effect ± SE Dominance effect ± SE VP (%)
Body weight at 3 weeks of age, g    
1 131 6.9† 65-604 LEI0068 - LEI0146 10.1±2.8 -2.0±4.0 2.3
1 505 4.6† 74-615 ROS0081 - LEI0079 13.6±4.8 10.4±12.8 1.4
2 298 16.1** 43-367 ADL0114 - MCW0056 15.9±3.2 16.4±5.5 6.0
4 148 8.8* 12-183 ADL0241 - MCW0180 27.8±6.7 -6.5±23.8 3.1
6 30 9.6* 0-42 ROS0003 - ADL0142 11.1±3.1 -11.1±4.9 2.6
8 63 7.6† 1-87 MCW0100- ROS0075 13.7±4.1 15.4±8.5 2.1
11 0 12.5** 0-10 LEI0110 - MCW0097 13.0±2.7 7.3±3.9 1.4
13 49 5.6† 9-71 LEI0083 - MCW0080 14.2±4.8 -19.7±11.8 1.8
Z 127 6.9† 0-127 LEI0111 - LEI0075 14.8±4.0 2.3±4.0 2.3
Body weight at 6 weeks of age, g    
1 130 16.0** 76-219 LEI0068 - LEI0146 42.4±7.5 -2.8±10.9 5.1
1 508 4.8† 0-606 ROS0081 - LEI0079 36.0±12.8 35.8±34.4 5.1
2 148 5.1† 34-370 ADL0176 - ADL0196 45.1±14.7 -34.9±42.4 1.4
2 286 13.3** 0-400 ROS0074 - ADL0114 39.2±8.1 23.7±12.6 4.2
3 47 10.4* 14-219 MCW0083-HUJ0006 45.9±10.2 11.8±18.4 3.2
3 235 5.5† 12-266 MCW0040-LEI0166 19.5±8.2 31.0±13.0 1.5
4 0 8.3* 0-69 ADL0317 - MCW0295 30.1±7.4 -1.7±10.9 2.5
4 161 21.5** 140-183 ADL0241-MCW0180 95.5±14.6 5.8±40.7 6.9
6 8 8.1* 0-43 ROS0062-ROS0003 27.0±9.0 -37.4±15.2 2.4
8 67 7.4† 0-87 MCW0100-ROS0075 41.5±11.5 25.3±23.0 2.4
11 0 11.1** 0-57 LEI0110-MCW0097 34.1±7.4 13.4±10.6 3.4
13 42 5.7† 12-71 MCW0340-ADL0225 47.2±14.0 -6.8±37.7 1.6
Z 119 9.8** 14-127 LEI0111-LEI0075 52.7±12.2 19.8±13.2 3.0
Body weight at 12 weeks of age, g    
1 137 12.2** 67-227 LEI0146-ADL0319 84.5±17.0 -5.5±26.3 3.7
1 525 10.2** 103-601 ROS0081-LEI0079 71.1±21.2 129.9±46.2 3.1
2 281 8.2* 49-290 ROS0074-ADL0114 87.0±17.1 23.0±27.4 4.0
3 39 10.1* 15-183 MCW0083-HUJ0006 91.1±20.2 -5.7±36.2 3.0
4 0 8.2* 0-177 ADL0317-MCW0295 62.0±15.2 -4.0±22.6 2.4
4 177 44.4** 155-183 ADL0241-MCW0180 207.7±22.0 15.6±44.8 14.5
6 30 6.2† 0-38 ROS0003-ADL0142 33.7±17.2 -5.5±26.3 1.7
8 61 11.2** 12-75 MCW0100-ROS0075 72.9±23.1 155.7±46.0 1.4
9 90 4.9† 0-120 MCW0135-ROS0030 26.2±22.2 -127.2±45.1 1.3
13 7 5.2† 0-71 MCW0340-ADL0225 48.8±18.4 54.0±32.5 1.4
Z 117 9.1* 8-127 LEI0111-LEI0075 110.0±25.9 32.2±28.3 2.7
Body weight at 24 weeks of age, g    
1 131 6.5† 109-543 LEI0068-LEI0146 91.6±25.9 26.2±37.1 2.3
1 560 5.0† 96-598 ADL0183-MCW0107 92.8±33.6 91.0±68.7 1.7
2 276 5.8† 0-297 ADL0236-ROS0074 94.1±27.7 -6.0±45.8 2.0
4 142 17.0** 19-169 ADL0241-MCW0180 379.6±65.6 -186.3±255.0 6.7
8 14 11.6** 0-86 MCW0305-ADL0258 107.3±26.4 107.5±38.2 4.4
8 87 6.1† 14-87 MCW0100-ROS0075 108.2±31.9 -72.6±49.1 2.2
13 70 7.1† 2-71 MCW0340-ADL0255 63.2±30.6 -156.5±48.0 2.6
27 0 9.5† - ROS0071 113.1±25.9 -2.5±35.7 2.6
Z 127 9.1** 0-127 LEI0111-LEI0075 137.7±37.6 109.4±38.8 3.4
Body weight at 48 weeks of age, g    
2 286 9.7* 59-297 ROS0074-ADL0114 141.7±34.0 -69.6±52.7 3.2
3 40 8.8* 1-199 MCW0083-HUJ0006 139.8±40.3 162.0±74.1 2.8
3 216 8.7* 2-226 ADL0306-ADL0237 106.1±33.9 -190.9±52.5 3.5
4 153 32.7** 137-183 ADL0241-MCW0180 550.4±68.0 -72.8±224.8 11.5
6 9 8.2† 0-35 ROS0062-ROS0003 151.5±37.3 15.8±62.6 2.6
8 24 7.8† 0-87 ADL0258-ADL0179 100.7±30.6 116.1±47.5 2.5
9 81 8.2† 23-103 MCW0135-ROS0030 135.1±44.7 -194.7±87.1 1.7
15 10 5.7† 0-49 LEI0083-MCW0080 115.8±39.5 117.1±70.2 1.7
27 0 15.2** - ROS0071 173.0±31.4 -20.3±43.7 5.2
Body weight at 72 weeks of age, g    
3 45 9.0* 0-215 MCW0083-HUJ0006 199.2±49.8 118.3±92.3 3.5
4 183 24.7** 154-183 ADL0241-MCW0180 324.7±46.7 -42.2±87.2 10.3
8 12 5.7† 0-87 ROS0021-ROS0026 120.9±36.9 29.6±54.2 2.0
27 0 16.5** - ROS0071 213.4±37.1 36.9±51.6 6.7
28 24 5.4† 0-42 ROS0085-ADL0299 128.6±48.9 -194.6±93.4 1.9
  1. 1Significant at 0.05 (*) and 0.01 (* *) levels experiment-wide, and (†) suggestive.
  2. 2 CI = 95% confidence interval.
  3. The position on the chromosome for QTL at 3, 6, 12, 24, 48 and 72 weeks of age with supporting F-values, additive and dominance effects and the proportion of phenotypic variance (VP) explained by the QTL. Dominance effects in bold are >2 SE (P < 0.05).
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