Table 5.
Comparison of shoot and root characteristics between the wild type (WT), fkd1, the fkd1/fl2/fl3 triple mutant, and the fkd1/fl1-2/fl2/fl3 quadruple mutant
| Genotype | Days to flower |
Rosette leaves |
Bracts | Root growth over 24 h | Root curvature after 6 h |
|---|---|---|---|---|---|
| WT | 19 (16) | 6.4 ± 1.0 (16) | 2.2 ± 0.4 (16) | 3.9 ± 1.1 (19) | 81.0 ± 15.2 (19) |
| fkd1 | 19 (15) | 6.4 ± 0.9 (15) | 2.2 ± 0.4 (15) | 3.1 ± 1.4a (25) | 81.6 ± 17.8 (21) |
| fkd1/fl2/fl3 | 23 (16) | 6.5 ± 1.1 (16) | 2.6 ± 0.5 (16) | 2.5 ± 0.9a (21) | 76.6 ± 13.8a (25) |
| fkd1/fl1-2/fl2/fl3 | 27 (16) | 8.9 ± 0.8a,b,c (16) | 2.9 ± 0.8 (16) | 1.4 ± 0.8a,b,c (18) | 60.6 ± 27.5a,b,c (18) |
Days to flower was defined as the time at which half the population had an open flower. Number of rosette leaves and bracts was counted at that time. Root growth was measured over 24 h in seedlings from 4 to 5 DAG, and root curvature of 5 DAG seedlings was measured 6 h after a 90° rotation. Numbers in parentheses are the sample size.
a represents a significant difference from the wild type, b represents a significant difference from fkd1, and c represents a significant difference from the triple mutant (P<0.05).