摘要： 对同时表达黄瓜花叶病毒外壳蛋白(CMV CP)和卫星RNA的转基因烟草NC89新品系(NC89-B)及单一表达CMV CP的转基因NC89新品系(NC89-T)，在大田生产条件下进行了品比及示范试验。结果表明，在抗病性方面，转基因NC89明显高于未转基因NC89，其中B品系对CMV的相对防效达80%左右，T品系对CMV的相对防效达20%左右；在农艺性状方面，转基因NC89较对照有较显著改善，产值、产量、上等烟比例均有提高，但种性未变；在原烟品质方面，转基因NC89与对照基本一致。

关键词: 烟草, 转基因NC89, 抗病性, 农艺性状

Abstract: The resistance to cucumber mosaic virus and the preservation of cultivar properties in transgenic tobacco cv NC89-B line expressing "CMV CP + Satellite RNA" and NC89-T line possessing CMV CP gene were tested under field conditions.The results indicated that the transgenic lines showed much higher resistance than the non-transformed plants.The disease index of the transgenic line B, the best line, averaged about 7.9 and 35.1 in contrast to about 40.6 and 72.5 of the non-transformed NC89 under natural condition and with inoculation of viruses, respectively.The agronomic properties of the transgenic lines improved but showed no genetic variation compared with the non-transformed plants.

Key words: Tobacco, Transgenic NC89, Resistance, Agronomic characters

中图分类号: 

• S572.03