Table 3.

ANOVA of the effects of kingdom, cross type, mating system, trait type, and whether or not the trait relates to timing of developmental events on the proportion of QTLs with opposing effects in crosses involving wild species

SourcedfSSMSFP value
Kingdom128.8028.800.110.7411
Cross11,482.491,482.495.640.0189
Mating system2354.19354.191.350.2476
Trait type22,877.601,438.805.470.0051
Timing11,231.261,231.264.680.0321
Total QTLs14,324.144,324.1416.450.0001
Error14738,645.86262.90
  • The total number of QTLs detected for each trait was included as a covariate. SS, sum of squares; MS, mean square.

  • * The fraction of antagonistic QTLs is lower for interspecific than intraspecific trait differences.

  • The fraction of antagonistic QTLs is lower for life history than morphological traits. QTL proportions for physiological traits are intermediate between, and not significantly different from, life history and morphological traits.

  • The fraction of antagonistic QTLs is greater for traits relating to the timing of developmental events than for all other traits.