Table 2. Ability of non-paramutagenic or weakly paramutagenic events to become more paramutagenic upon exposure to B'.
| Construct | Transgenic event | Average paramutagenicitya | Transgene paramutagenicity after exposure to B' | ||
| Total number (B'# or B-I)/b-N; TG/- plantsb | Frequency of light plants | Summary on paramutagenicity | |||
| pB | 4-27 | 49% | 179 | 99% | Increased |
| 4-43 | 22% | 163 | 99% | Increased | |
| 4-03 | 0% | 131 | 92% | Increased | |
| 4-06 | 0% | 131 | 97% | Increased | |
| 4-12 | 0% | 183 | 0% | Not changed | |
| 4-14 | 0% | 177 | 0% | Not changed | |
| 4-23 | 0% | 116 | 0% | Not changed | |
| pBΔ | 3-03 | 48% | 139 | 100% | Increased |
| 3-46 | 56% | 87 | 100% | Increased | |
| 3-34 | 0% | 117 | 100% | Increased | |
| 3-47 | 0% | 110 | 0% | Not changed | |
| pFB | 61-03 | 0% | 16 | 0% | Not changed |
| 61-04 | 0% | 70 | 0% | Not changed | |
| 61-06 | 0% | 11 | 0% | Not changed | |
| 61-07 | 0% | 76 | 0% | Not changed | |
| 61-10 | 0% | 65 | 0% | Not changed | |
| 61-13 | 0% | 32 | 0% | Not changed | |
| 61-28 | 0% | 49 | 0% | Not changed | |