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Table 2 Effects of the number of replications on the simple analysis using the mean phenotype

From: Mapping quantitative trait loci in line cross with repeat records

   

Estimate

a and d

h 2

Replicate

Power

Position

a

d

h 2

σ 2

LOD

0.4189

0.05

1

21

38.36(5.188)

0.673(0.101)

0.505(0.097)

0.096(0.004)

4.266(0.139)

17.00(0.812)

  

3

34

26.65(0.888)

0.559(0.317)

0.560(0.207)

0.197(0.007)

2.189 (0.034)

15.39(0.493)

  

5

42

29.50(1.026)

0.653(0.294)

0.541(0.296)

0.178(0.059)

2.743(0.512)

17.34(0.529)

  

10

56

27.04(0.954)

0.719(0.241)

0.694(0.180)

0.218(0.061)

2.911(0.337)

20.92(0.559)

  

15

81

26.16(1.521)

0.496(0.029)

0.560(0.021)

0.173(0.005)

2.469(0.038)

16.87(0.416)

0.6086

0.10

1

57

23.89(1.774)

0.767(0.050)

0.777(0.040)

0.120(0.039)

4.785(0.082)

17.22(0.606)

  

3

78

25.39(0.660)

0.661(0.024)

0.639(0.016)

0.234(0.063)

2.256(0.027)

23.31(0.531)

  

5

81

27.04(0.954)

0.719(0.241)

0.694(0.018)

0.219(0.061)

2.911(0.034)

20.92(0.559)

  

10

84

26.23(0.602)

0.667(0.245)

0.683(0.167)

0.223(0.065)

2.600(0.279)

21.65(0.564)

  

15

87

25.79(0.672)

0.652(0.233)

0.647(0.147)

0.211(0.060)

2.586(0.026)

20.77(0.529)

0.9129

0.20

1

97

25.21(0.563)

1.003(0.043)

0.970(0.030)

0.208(0.005)

4.800(0.082)

23.44(0.725)

  

3

100

25.10(0.302)

0.909(0.233)

0.916(0.015)

0.357(0.007)

2.311(0.025)

38.04(0.773)

  

5

99

25.00(0.305)

0.886(0.027)

0.930(0.016)

0.306(0.007)

2.974(0.033)

30.93(0.653)

  

10

100

25.08(0.307)

0.952(0.026)

0.932(0.016)

0.335(0.007)

2.689(0.027)

34.94(0.673)

  

15

99

25.07(0.288)

0.929(0.025)

0.914(0.015)

0.330(0.007)

2.659(0.026)

33.65(0.678)

  1. h2 is the proportion of phenotypic variance explained by the QTL. The variance ratio of permanent environmental effect to random environmental effect is fixed as 1:1. Standard deviations are in parentheses.