Table I.
Plastochronic and other developmental phenotypes of gif mutants
Values shown are means ± se; n = 10.
| Leaf Order | Genotype
|
|||||||
|---|---|---|---|---|---|---|---|---|
| Columbia | gif1 | gif2 | gif3 | gif1/2 | gif2/3 | gif1/3 | gif1/2/3 | |
| Day when leaf attains 1 mm in lengtha | ||||||||
| 1, 2 | 8.6 ± 0.1 | 7.8 ± 0.1 [0.8]b | 8.3 ± 0.1 [0.3] | 8.5 ± 0.1 [0.1] | 8.2 ± 0.1 [0.4] | 8.4 ± 0.1 [0.2] | 8.1 ± 0.1 [0.5] | 10.4 ± 0.2 [−1.9] |
| (3.9)c | (3.0) | (3.6) | (3.8) | (2.7) | (3.4) | (2.8) | (0.9) | |
| 3 | 12.5 ± 0.1 | 10.8 ± 0.1 [1.7] | 11.9 ± 0.1 [0.6] | 12.3 ± 0.1 [0.1] | 10.9 ± 0.1 [1.5] | 11.8 ± 0.1 [0.6] | 10.9 ± 0.2 [1.6] | 11.3 ± 0.3 [1.2] |
| (1.3) | (0.8) | (1.3) | (1.2) | (0.8) | (1.4) | (1.0) | (1.1) | |
| 4 | 13.8 ± 0.1 | 11.6 ± 0.2 [2.2] | 13.2 ± 0.1 [0.6] | 13.5 ± 0.1 [0.3] | 11.7 ± 0.1 [2.0] | 13.2 ± 0.2 [0.7] | 11.9 ± 0.1 [1.9] | 12.4 ± 0.2 [1.5] |
| Day when leaf attains 1 mm in lengthd | ||||||||
| 1, 2 | 15.8 ± 0.1 | 12.7 ± 0.0 [3.2] | 13.5 ± 0.0 [2.3] | 13.9 ± 0.3 [2.0] | 12.7 ± 0.0 [3.2] | 13.4 ± 0.2 [2.4] | 12.8 ± 0.1 [3.0] | 16.1 ± 0.1 [−0.2] |
| (4.6) | (3.9) | (4.4) | (4.6) | (4.0) | (4.7) | (4.1) | (1.5) | |
| 3 | 20.5 ± 0.2 | 16.6 ± 0.1 [3.9] | 17.9 ± 0.1 [2.5] | 18.5 ± 0.1 [2.0] | 16.6 ± 0.1 [3.8] | 18.1 ± 0.1 [2.3] | 16.9 ± 0.1 [3.6] | 17.6 ± 0.1 [2.9] |
| (1.4) | (1.4) | (1.5) | (1.7) | (1.6) | (1.5) | (1.5) | (0.9) | |
| 4 | 21.8 ± 0.1 | 18.0 ± 0.1 [3.8] | 9.5 ± 0.0 [2.4] | 20.2 ± 0.2 [1.6] | 18.2 ± 0.2 [3.6] | 19.7 ± 0.2 [2.2] | 18.4 ± 0.3 [3.5] | 18.5 ± 0.2 [3.4] |
| No. of rosette leaves when plants have the first open flowersa | ||||||||
| 10.7 ± 0.1 | 11.3 ± 0.4 | 10.3 ± 0.5 | 11.1 ± 0.5 | 10.3 ± 0.3 | 10.0 ± 0.3 | 11.0 ± 0.5 | 10.0 ± 0.3 | |
| Bolting time: day when the first flower bud develops to stage 12a | ||||||||
| 29.5 ± 1.6 | 27.3 ± 1.3 | 28.7 ± 1.0 | 29.5 ± 1.2 | 26.0 ± 0.9 | 24.0 ± 1.5 | 24.8 ± 1.5 | 21.4 ± 1.0 | |
| No. of seeds per siliquea | ||||||||
| 42.7 ± 1.4 | 19.6 ± 1.1 | 35.1 ± 1.0 | 40.5 ± 2.6 | 0.0 ± 0.0 | 28.8 ± 1.7 | 8.0 ± 1.4 | 0.0 ± 0.0 | |
| Primary stem length (cm)a | ||||||||
| 24.3 ± 2.5 | 28.9 ± 3.0 | 24.3 ± 3.2 | 22.9 ± 1.5 | 30.2 ± 2.3 | 24.1 ± 2.9 | 33.4 ± 2.5 | 14.5 ± 2.4 | |
a
Plants were grown under long days (18 h of light/6 h of darkness).
b
Numbers in brackets are differences in days between the wild type and the mutants.
c
Numbers in parentheses are plastochron lengths between successive leaves.
d
Plants were grown under short days (8 h of light/16 h of darkness).