Table 2.
Direction of alteration of adjacent pairwise linkage disequilibrium (LD) under field exposure compared with a S1 control (α = 0.05, corrected for multiple tests following Benjamini and Hochberg 1995). Comparisons are based on marginal, adjusted, values for the tested generations
| LD compared with (S1−)control | ||||
|---|---|---|---|---|
| Generation | N | Weakened (<) | Strengthened (>) | Unchanged |
| S1 | 157 | 53*** | 23 | 81 |
| BC1† | 77 | 31ns | 22 | 24 |
| BC1S1 | 145 | 57*** | 27 | 61 |
***
Significant (P < 0.001) directional effect deviating from 1:1 weakened/strengthened (Chi-square, df = 1).
†
N in the BC1 generation is lower, as dominant loci with a dominant L. serriola allele will show all a band being either heterozygous or homozygous L. serriola.
ns
No directional effect deviating from 1:1 weakened/ strengthened (Chi-square, df = 1)