TABLE 2

Percentage of times that the correct location of the QTL was identified for various selection strategies and parameters for continuous phenotypes

Frequency of positive QTL alleles (%)
0.050.10≈0.20
h2 = 0.05h2 = 0.30h2 = 0.05h2 = 0.30h2 = 0.05h2 = 0.30
StrategyQTL variance:0.100.300.100.300.100.300.100.300.100.300.100.30
RAN11.717.519.637.415.323.636.452.618.036.045.670.1
STD29.0*43.6*47.764.1*37.9*60.4*62.476.4*48.8*73.2*75.285.4*
BAL25.9*39.853.8*66.0*37.2*56.8*68.3*78.7*47.4*69.379.8*88.3*
DISPAIR28.3*40.2*56.0*66.7*36.9*57.5*70.0*79.3*47.8*72.5*79.7*88.3*
DIS1018.533.345.257.225.742.152.068.131.953.163.177.9
DIS2022.937.553.164.0*29.948.462.473.639.661.473.385.0
DIS5024.939.957.2*64.9*33.756.269.0*77.8*46.1*68.581.3*87.5*
CON512.624.217.834.616.830.624.440.520.837.927.353.3
CON1016.330.923.146.120.840.733.154.725.149.940.368.8
CON2519.335.531.051.327.148.546.467.436.464.258.679.3

Numbers in italics indicate the most precise strategy and asterisks indicate the strategies that did not differ significantly (P < 0.05) from the best strategy. RAN, random genotyping; STD, selective genotyping; BAL, genotyping equal numbers of discordant pairs per sire; DISPAIR, genotyping of most diverse half-sib pairs; DISn, discordant sib selection with n = 10, 20, or 50 half-sib families; CONn, concordant sib selection with 5, 10, or 25 high and low sires.