TABLE 1

Estimates of QTL allele effects, normal error, truncation selection

Estimate of α
Gen (%)DSMGLRML
Simulated value = 0.0
1000.001 ± 0.0030.001 ± 0.0030.001 ± 0.0030.001 ± 0.003
500.000 ± 0.0030.000 ± 0.0030.000 ± 0.0030.000 ± 0.003
10– 0.005 ± 0.004– 0.005 ± 0.004– 0.005 ± 0.004– 0.005 ± 0.004
Simulated value = 0.1
1000.101 ± 0.0030.101 ± 0.0030.101 ± 0.0030.101 ± 0.003
500.100 ± 0.0030.100 ± 0.0030.100 ± 0.0030.100 ± 0.003
100.097 ± 0.0040.096 ± 0.0040.099 ± 0.0050.097 ± 0.005
Simulated value = 0.2
1000.201 ± 0.0030.201 ± 0.0030.201 ± 0.0030.201 ± 0.003
500.200 ± 0.0030.200 ± 0.0030.201 ± 0.0030.201 ± 0.003
100.197 ± 0.0040.196 ± 0.0040.206 ± 0.0050.204 ± 0.005
Simulated value = 0.5
1000.501 ± 0.0020.501 ± 0.0020.501 ± 0.0020.501 ± 0.002
500.489 ± 0.0020.490 ± 0.0020.502 ± 0.0030.502 ± 0.003
100.408 ± 0.0020.420 ± 0.0020.526 ± 0.0060.511 ± 0.005

Estimates are means and standard errors of 100 replicates, where Gen refers to the percentage of animals genotyped. Estimation methods were those of Darvasi and Soller (1992; DS) and Muranty and Goffinet (1997; MG). LR, logistic regression; ML, maximum likelihood.