Table 3.
Ploidy-level relative frequencies in mixed populations of Allium oleraceum in the Czech Republic
| Ploidy-level combination | n | Mean frequency of tetraploids ± s.e. | Mean frequency of pentaploids ± s.e. | Mean frequency of hexaploids ± s.e. | Paired t (F*) | P |
|---|---|---|---|---|---|---|
| 4x + 5x | 15 | 0·46 ± 0·06 | 0·54 ± 0·06 | – | −0·02 | 0·98 |
| 4x + 6x | 6 | 0·70 ± 0·13 | – | 0·30 ± 0·13 | 1·03 | 0·35 |
| 5x + 6x | 50 | – | 0·53 ± 0·03 | 0·47 ± 0·03 | 1·17 | 0·25 |
| 4x + 5x + 6x | 4 | 0·32 ± 0·14 | 0·28 ± 0·12 | 0·40 ± 0·14 | 0·01* | 0·99 |
The mean frequency of tetraploid, pentaploid and hexaploids is given for populations containing two ploidy levels and populations containing three ploidy levels from the entire sampling area.
Either a paired t-test on the number of 4x vs. 5x, 4x vs. 6x and 5x vs. 6x individuals or GLM ANOVA (F-test) on the number of 4x vs. 5x vs. 6x individuals evaluated whether one ploidy level was consistently dominant in the mixed sites.