Table II.
Analysis of ttn6 seeds at different stages of development
| Allele | Stagea | Diameter
of Embryo Proper
|
Diameter of Largest Endosperm Nucleolus
|
||
|---|---|---|---|---|---|
| Average | Range | Average | Range | ||
| μm | |||||
| ttn6-1 | Heart | 44 | 23–58 | 18 | 14–35 |
| Linear cotyledon | 52 | 32–64 | 21 | 12–41 | |
| Curled cotyledon | 58 | 37–104 | 24 | 14–46 | |
| ttn6-2 | Heart | 40 | 30–51 | 14 | 9–20 |
| Linear cotyledon | 48 | 35–74 | 16 | 12–23 | |
| Curled cotyledon | 69 | 69–108 | 23 | 14–32 | |
a
Developmental stage of normal seeds obtained from the same silique. No. of seeds analyzed: ttn6-1: heart (24), linear cotyledon (47), and curled cotyledon (40); ttn6-2: heart (31), linear cotyledon (38), and curled cotyledon (38). The diameter of a normal embryo cell is about 8 μm, and that of an endosperm nucleolus is 4 μm.