Table 1. Results of simulations.
Population Type and Size | 100 RILs | 200 F2 | 1000 F2 | ||||||
Selection Intensity | 10% | 30% | 10% | 30% | 10% | 30% | |||
Confidence | Detection Thresholds | ||||||||
95% | 1.18 | 0.7 | 0.58 | 0.34 | 0.27 | 0.15 | |||
99% | 1.43 | 0.85 | 0.72 | 0.42 | 0.33 | 0.19 | |||
Model | Effect | Chromosome No. | Position (cM) | Failure Rate (%) | |||||
1 | Major Additive | Two | 36 | 0.1 | 0 | 0 | 0 | 0 | 0 |
2 | Major Dominant | Two | 36 | 0 | 0 | 0 | 0 | 0 | 0 |
3 | Moderate Additive | Two | 36 | 12.5 | 4 | 10.4 | 3 | 0 | 0 |
4 | Maj. Overdominance | Two | 36 | 94.5 | 95.9 | 95.2 | 95.4 | 95.1 | 94.7 |
5 | Major Additive | Two | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
6 | Moderate Additive (unlinked) | Two | 36 | 20.1 | 10.4 | 14.7 | 5.5 | 0 | 0 |
6 | Moderate Additive (unlinked) | Five | 41 | 17.4 | 7.7 | 12.2 | 4.4 | 0 | 0 |
7 | Major Additive (linked in repulsion) | Two | 36 | 24.1 | 42.3 | 55.5 | 48.9 | 0.7 | 0.5 |
7 | Major Additive (linked in repulsion) | Two | 56 | 29.8 | 45.1 | 58.5 | 52.6 | 0.9 | 0.2 |
8 | Major Epistasis (unlinked) | Two | 36 | 31.5 | 17.9 | 55.4 | 63.4 | 3 | 11.9 |
8 | Major Epistasis (unlinked) | Five | 41 | 32.6 | 15.7 | 58.7 | 65.3 | 3.9 | 12.3 |
Model | Effect | Chromosome No. | Position (cM) | 95% Confidence Interval (cM) | |||||
1 | Major Additive | Two | 36 | 10.4 | 5.6 | 18.5 | 9.4 | 3.8 | 3.2 |
2 | Major Dominant | Two | 36 | 11.2 | 5.4 | 20.5 | 14.4 | 4.3 | 3.6 |
3 | Moderate Additive | Two | 36 | 55.2 | 32.9 | 63.6 | 45.3 | 9.2 | 5.8 |
4 | Maj. Overdominance | Two | 36 | 83.0 | 83.0 | 83.0 | 83.0 | 83.0 | 83.0 |
5 | Major Additive | Two | 2 | 6.2 | 3.1 | 10.8 | 6.4 | 2.0 | 0.4 |
6 | Moderate Additive (unlinked) | Two | 36 | 60.1 | 52.4 | 66.1 | 61.0 | 10.2 | 6.7 |
6 | Moderate Additive (unlinked) | Five | 41 | 71.7 | 43.8 | 73.5 | 57.1 | 9.2 | 6.4 |
7 | Major Additive (linked in repulsion) | Two | 36 | 26.8 | 37.1 | 36.7 | 36.3 | 18.3 | 15.4 |
7 | Major Additive (linked in repulsion) | Two | 56 | 30.1 | 29.4 | 28.8 | 28.5 | 22.7 | 16.1 |
8 | Major Epistasis (unlinked) | Two | 36 | 77.2 | 58.2 | 83.0 | 83.0 | 42.6 | 71.3 |
8 | Major Epistasis (unlinked) | Five | 41 | 98.0 | 76.2 | 98.0 | 98.0 | 46.4 | 79.8 |
(Top) The horizontal detection thresholds calculated by considering the minimum signal not exceeded by the unlinked chromosomes in 95 and 99% of the simulations.
(Middle) The rate of failure, as a percentage, for a linked chromosome to exceed the 95% threshold for detection constructed from the maximum and minimum values on unlinked chromosomes.
(Bottom) The 95% confidence intervals constructed representing the central width of the chromosome that contained the peak in 950 of 1000 simulations. These data represent the precision of the mapping technique for each model, population, and selection intensity.