TABLE 2

Chromosomal position and additive and additive-by-additive epistatic effects of 10 QTL

Chromosome
1112223334
Position (cM):164810834377336812926
QTL symbol:QZ1QZ2QZ3QZ4QZ5QZ6QZ7QZ8QZ9QZ10
QZ10.54
QZ20.160.95
QZ30.450.170.73
QZ40.921.29
QZ50.61−1.57
QZL6−1.160.460.21−1.61
QZ70.171.30−0.59
QZ81.182.910.362.05
QZ90.30−1.12−0.30−1.721.12
QZ10−0.44−0.962.960.94
PVE of additive genetic model
    H = 0.81.464.512.668.3212.3012.961.7421.016.274.42
    H = 0.50.912.821.675.207.708.101.0913.133.922.76
PVE of additive and epistasis genetic model
    H = 0.80.973.011.785.558.228.641.1614.014.182.95
    H = 0.50.611.881.113.475.145.400.738.762.611.84
  • The additive variance (VA) was 4.0, and the interaction variance (VI) was half of the additive variance. The interaction effect was drawn from a Gamma distribution Embedded Image. The error variance (Ve) was calculated by Embedded Image, where H is the heritability in the broad sense. When interaction was not included, the error variances were 1.0 and 4.0 for H = 0.8 and H = 0.5, respectively. When interaction was included, the error variances were 1.5 and 6.0 for H = 0.8 and H = 0.5, respectively. PVE, percentage of variance explained by individual QTL.