Table 3

The MLEs of the model parameters and the QTL position derived from 200 simulation replicates assuming partial imprinting. The square root of the mean square errors (RMSEs) of the MLEs are given in parentheses.




QMQP
QMqP
qMQP
qMqP
Residual








H2
n
Position (cM)
α1
36.5
β1
6.5
γ1
0.7
α2
35.5
β2
6.5
γ2
0.7
α3
34.5
β3
6
γ3
0.7
α4
33.5
β4
5.5
γ4
0.7
σ2
ρ
0.8

0.1
200
45.37 (3.932)
36.51 (0.324)
6.49 (0.096)
0.70 (0.006)
35.18 (0.891)
6.27 (0.363)
0.70 (0.011)
34.85 (0.863)
6.23 (0.356)
0.70 (0.012)
33.51 (0.316)
5.51 (0.084)
0.70 (0.007)
0.0043 (0.001)
0.79 (0.014)
0.1
500
45.96 (2.206)
36.52 (0.225)
6.50 (0.060)
0.70 (0.004)
35.15 (0.686)
6.30 (0.321)
0.70 (0.008)
34.88 (0.716)
6.20 (0.323)
0.70 (0.008)
33.49 (0.201)
5.50 (0.052)
0.70 (0.004)
0.0044 (0.0008)
0.80 (0.011)
0.4
200
46.21 (1.787)
36.51 (0.134)
6.50 (0.038)
0.70 (0.002)
35.21 (0.566)
6.36 (0.268)
0.70 (0.003)
34.78 (0.572)
6.14 (0.271)
0.70 (0.003)
33.50 (0.123)
5.50 (0.032)
0.70 (0.0003)
0.0008 (0.0005)
0.79 (0.013)
0.4
500
46.17 (1.09)
36.51 (0.093)
6.50 (0.024)
0.70 (0.002)
35.29 (0.461)
6.40 (0.229)
0.70 (0.002)
34.72 (0.476)
6.11 (0.234)
0.70 (0.002)
33.50 (0.076)
5.50 (0.021)
0.70 (0.002)
0.0007 (0.0002)
0.80 (0.005)

The location of the simulated QTL is described by the map distances (in cM) from the first marker of the linkage group (100 cM long). The hypothesized σ2 value is 0.0045 for H2 = 0.10 and 0.00075 for H2 = 0.4.

Cui et al. Theoretical Biology and Medical Modelling 2008 5:6   doi:10.1186/1742-4682-5-6