Table 1.
Photo and hormonal control of floral reversion
| Genotype | Light and hormone treatment | Flowers per plant showing floral reversion* | No. of plants scored† |
|---|---|---|---|
| WT | LD | 0 | 14 |
| WT | SD | 0.4 (0.7) | 9 |
| lfy-6(+/−) | LD | 0 | 16 |
| lfy-6(+/−) | SD | 12 (2.2) | 16 |
| lfy-6(+/−) | SD(D) | 15 (6.5) | 31 |
| lfy-6(+/−) hy1-1 | SD(D) | 1.9 (2.7) | 30 |
| lfy-6(+/−) | SD + 0.5 hr red NB | 4.0 (5.4) | 24 |
| lfy-6(+/−) | SD + 2 hr red NB | 0.1 (0.3) | 16 |
| lfy-6(+/−) | SD(D) + 10−5 M GA3 | 0.1 (0.5) | 15 |
| lfy-6(+/−) spy-2 | SD(D) | 0 | 17 |
| lfy-6(+/−) spy-3 | SD(D) | 0 | 24 |
| ag-1 | LD | 0 | 15 |
| ag-1 | SD(D) | 16 (4.5) | 16 |
| ag-1 hy1-1 | SD(D) | 0 | 15 |
| ag-1 | SD + 0.5 hr red NB | 0.2 (0.4) | 6 |
| ag-1 | SD + 2 hr red NB | 0 | 4 |
| ag-1 | SD(D) + 10−5 M GA3 | 0 | 14 |
Growth conditions and light regimes are described in Materials and Methods. NB, night break (29).
*
Average number of flowers per primary inflorescence per plant displaying ectopic shoot development or swollen ovaries. Standard deviation values are given in parentheses. No floral meristem reversion was observed in hy1, spy-2, spy-3, or WT + 10−5 M GA3 control plants grown under SD conditions.
†
Heterozygous lfy-6 plants were confirmed by F1 analysis.