共查询到20条相似文献,搜索用时 464 毫秒
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
Nelson Marmiroli Caterina Agrimonti Giovanna Visioli Michele Colauzzi Giovanni Guarda Anna Zuppini 《Potato Research》2000,43(4):313-323
Summary We have evaluated the effect that the, silencing of two genes specifically expressed in conditions of dormancy (A2-1) and
sprouting (G1-1) had on tuber dormancy. For this purpose potato plants (Solanum tuberosum L. cv. Désirée) were transformed with the antisense of the genes G1-1 and A2-1 under the control of constitutive 35S CaMV
promoter. A first generation of transgenic plants was propagated from axenic stem cuttings and a second generation by tuber
planting. The plants obtined were analyzed for the length of dormancy, plant morphology and agronomic characteristics. Statistical
analysis of dormancy in lines obtained from the original transformants for the antisense of G1-1 gene showed a significant
increase in length as compared with different types of control plants, with few effects on plant vegetative habit and tuber
production. In contrast, results obtained on A2-1 antisense transformed plants did not reveal any significant change on the
length of dormancy. Here we report small-scale field trials performed with the aim to select and regenerate commercially exploitable
potato plants with a stable transgene-dependent phenotype, affecting the length of dormancy. 相似文献
16.
17.
18.
《Industrial Crops and Products》2001,13(3):265-266
19.