International Journal of Plant Genomics / 2010 / Article / Tab 3

Methodology Report

EM Algorithm for Mapping Quantitative Trait Loci in Multivalent Tetraploids

Table 3

Maximum likelihood estimates of the double reduction, recombination fraction, overall mean, additive effects, and dominant effects under different simulation scenarios in a mapping population of size 400. Numbers in parentheses are the standard errors of the estimates.

True valueμ
10.60.60.60.50.50.50.50.50.5

0.30.250.10.3000.3001.2080.1820.4350.2081.8002.002−1.2361.546−1.574−1.318
(0.023)(0.082)(0.933)(1.405)(1.400)(1.074)(2.357)(2.429)(2.829)(2.130)(2.744)(2.906)
0.30.250.40.3010.2311.0660.5850.5570.6030.5080.4510.3610.4940.4630.309
(0.023)(0.078)(0.358)(0.552)(0.497)(0.532)(1.050)(0.984)(0.977)(1.115)(1.060)(0.964)
0.30.050.10.2980.0971.0260.5770.6460.6290.7040.8180.2450.6890.2020.208
(0.023)(0.077)(0.389)(0.603)(0.637)(0.580)(1.067)(1.138)(1.206)(1.028)(1.120)(1.071)
0.30.050.40.2990.0501.0140.6260.5530.6390.5250.4420.4580.5070.5750.414
(0.025)(0.027)(0.127)(0.245)(0.253)(0.250)(0.388)(0.435)(0.405)(0.403)(0.388)(0.350)

0.150.250.10.1500.2610.9280.6410.4630.6110.9750.8600.1920.9950.2650.202
(0.016)(0.135)(0.510)(0.684)(0.904)(0.737)(1.372)(1.476)(1.423)(1.286)(1.458)(1.353)
0.150.250.40.1500.2501.0120.5840.6240.5650.4950.5520.4790.5160.4520.424
(0.017)(0.060)(0.180)(0.329)(0.358)(0.326)(0.511)(0.526)(0.510)(0.558)(0.478)(0.419)
0.150.050.10.1500.1131.0750.5830.5830.7060.7400.7050.2180.6670.1700.058
(0.017)(0.095)(0.485)(0.866)(0.846)(0.838)(1.341)(1.254)(1.322)(1.527)(1.272)(1.218)
0.150.050.40.1500.0491.0140.5260.6540.6070.5310.5720.5470.4060.4250.482
(0.017)(0.034)(0.197)(0.307)(0.382)(0.366)(0.557)(0.511)(0.551)(0.516)(0.506)(0.483)

0.050.250.10.0500.3220.9490.5160.7260.6291.2561.3270.1871.026−0.191−0.037
(0.010)(0.113)(0.858)(1.819)(1.626)(1.773)(2.170)(2.180)(2.155)(2.213)(2.437)(2.459)
0.050.250.40.0500.2501.0070.6100.6520.5510.4040.5620.4810.4800.4570.545
(0.012)(0.057)(0.423)(0.664)(0.680)(0.624)(0.873)(0.789)(0.867)(0.916)(0.909)(0.991)
0.050.050.10.0500.1671.0020.6560.3430.7231.1560.796−0.1641.1470.111−0.211
(0.011)(0.109)(0.830)(1.548)(1.553)(1.581)(2.032)(2.084)(2.157)(2.213)(1.997)(2.140)
0.050.050.40.0510.0541.0250.5910.6080.6350.5120.4590.5180.4690.4770.450
(0.011)(0.037)(0.347)(0.637)(0.624)(0.698)(0.771)(0.895)(0.894)(0.931)(0.800)(0.770)

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