Table 2.
Characteristics of tubers of wild-type and transgenic lines
| Parameter | A16 | pSB8
plants
|
pSB8G
plants
|
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 7 | 9 | 2 | 3 | 4 | 5 | 6 | 10 | ||
| Tuber no. per plant | 10.25 ± 2.06 | 19.66 ± 2.08 | 17.75 ± 3.09 | 23.20 ± 2.88 | 17.25 ± 2.21 | 19.75 ± 2.50 | 18.00 ± 2.16 | 19.00 ± 1.82 | 18.00 ± 3.00 | 19.00 ± 2.64 | 20.30 ± 2.08 | 18.0 ± 2.94 | 20.00 ± 3.60 |
| Tuber fresh wt per plant, g | 26.32 ± 3.00 | 136.20 ± 7.71 | 142.30 ± 9.55 | 169.65 ± 5.00 | 117.32 ± 9.29 | 147.7 ± 10.83 | 139.40 ± 7.92 | 132.25 ± 10.08 | 146.56 ± 7.15 | 159.60 ± 7.92 | 175.92 ± 7.0 | 142.80 ± 9.43 | 125.93 ± 10.9 |
| Mean fresh wt per tuber, g | 2.56 | 6.92 | 8.00 | 7.31 | 6.80 | 7.47 | 7.74 | 6.96 | 8.14 | 8.40 | 8.66 | 7.93 | 6.29 |
| Protein content, mg per g tuber | 11.15 ± 0.83 | 15.0 ± 1.05 | 14.57 ± 1.03 | 15.37 ± 1.45 | 14.82 ± 1.38 | 16.12 ± 1.33 | 14.10 ± 0.93 | 15.52 ± 1.07 | 15.25 ± 1.53 | 16.00 ± 0.67 | 16.58 ± 0.20 | 15.45 ± 1.29 | 14.69 ± 0.37 |
Potato plants in restricted experimental plots were grown to maturity in the winter season and tubers were harvested. The tuber number, fresh weight, and protein content were determined. Total tuber protein was extracted with 20% trichloroacetic acid and estimated spectrophotometrically. Values are presented as the mean ± SE for four wild-type and three or four transgenic plants.