TABLE 6

Estimates of the average coefficient of dominance (± standard error) from a mutation-accumulation experiment of 100 generations using lines of size N = Ne

λ = 0.2,
 Embedded Image,
 β = 2λ = 0.2,
 Embedded Image,
 β = 1.01λ = 0.006,
 Embedded Image,
 β = 1.01λ = 0.006,
 Embedded Image,
 β = 1.01
N0.40.40.40.2
Beta distribution
by.xNo selection0.29 ± 0.0030.27 ± 0.0030.29 ± 0.0030.13 ± 0.003
N = 10.29 ± 0.0030.27 ± 0.0040.34 ± 0.0040.14 ± 0.002
N = 20.29 ± 0.0020.26 ± 0.0030.36 ± 0.0050.14 ± 0.002
N = 1 (5%)0.30 ± 0.0030.27 ± 0.0040.34 ± 0.0030.16 ± 0.002
N = 1 (10%)0.30 ± 0.0020.28 ± 0.0040.37 ± 0.0040.18 ± 0.002
NEmbedded Image0.300.270.280.12
Embedded ImageNo selection0.34 ± 0.0020.32 ± 0.0020.33 ± 0.0020.15 ± 0.002
N = 10.34 ± 0.0020.32 ± 0.0030.36 ± 0.0040.16 ± 0.001
N = 20.34 ± 0.0020.32 ± 0.0020.38 ± 0.0040.17 ± 0.002
N = 1 (5%)0.34 ± 0.0020.32 ± 0.0030.37 ± 0.0020.18 ± 0.002
N = 1 (10%)0.34 ± 0.0010.32 ± 0.0030.39 ± 0.0030.19 ± 0.002
NEmbedded Image0.340.320.320.15
Exponential distribution
by.xNo selection0.32 ± 0.0020.26 ± 0.0020.28 ± 0.0020.04 ± 0.001
N = 10.31 ± 0.0040.25 ± 0.0060.29 ± 0.0040.05 ± 0.000
N = 20.32 ± 0.0040.25 ± 0.0020.32 ± 0.0030.07 ± 0.001
N = 1 (5%)0.32 ± 0.0040.25 ± 0.0030.35 ± 0.0030.09 ± 0.001
N = 1 (10%)0.32 ± 0.0040.27 ± 0.0040.39 ± 0.0040.13 ± 0.003
NEmbedded Image0.320.260.260.03
Embedded ImageNo selection0.36 ± 0.0020.32 ± 0.0020.33 ± 0.0020.09 ± 0.000
N = 10.36 ± 0.0030.32 ± 0.0040.34 ± 0.0030.10 ± 0.001
N = 20.36 ± 0.0030.32 ± 0.0020.36 ± 0.0020.12 ± 0.002
N = 1 (5%)0.36 ± 0.0020.32 ± 0.0010.38 ± 0.0030.13 ± 0.002
N = 1 (10%)0.36 ± 0.0030.33 ± 0.0030.40 ± 0.0040.17 ± 0.003
NEmbedded Image0.360.320.320.08
  • The distribution of h follows a beta distribution with correlation r = −0.4 between s and h or a uniform distribution between 0 and exp(−ks). Selection is assumed to occur only within lines or both within and between lines, with 5 or 10% truncation of the lowest viability lines. Estimates for λ = 0.2 use log-scale data whereas those for λ = 0.006 use real-scale data. Parameters and definitions are as in Table 2.