Table 2.
ANOVA of the effects of kingdom, cross type, mating system, and whether or not the trait difference results from domestication on the proportion of QTLs with opposing effects in crosses between wild and domesticated populations
| Source | df | SS | MS | F | P value |
|---|---|---|---|---|---|
| Kingdom | 1 | 962.32 | 962.32 | 3.68 | 0.0559 |
| Cross | 1 | 2,002.68 | 2,002.68 | 7.66 | 0.0060 |
| Mating system | 2 | 1,966.30 | 983.15 | 3.76 | 0.0243 |
| Domestication trait | 1 | 9,728.08 | 9,728.08 | 37.19 | <0.0001 |
| Total QTLs | 1 | 6,016.61 | 6,016.61 | 23.00 | <0.0001 |
| Error | 348 | 91,038.72 | 261.61 |
The total number of QTLs detected for each trait was included as a covariate. SS, sum of squares; MS, mean squares.
The fraction of antagonistic QTLs is lower for interspecific than intraspecific trait differences.
The fraction of antagonistic QTLs is lower for traits from crosses between selfers than for traits from crosses between outcrossers. QTL proportions for traits from crosses between selfers and outcrossers are intermediate and not significantly different from crosses involving selfers or outcrossers only.
The fraction of antagonistic QTLs is lower for domestication traits than for all other traits.