表达PLRV CP基因的转基因马铃薯抗病性田间鉴定

Field Identification of Virus Resistance of Transgenic Potato Expressing PLRV CP Gene

以表达马铃薯卷叶病毒（PLRV）外壳蛋白（CP）基因的转基因马铃薯为供试材料，在接种病毒后续发感染条件下观察鉴定转基因株系的田间发病率，发病时间和发病指数．结果表明转基因马铃薯株系延迟发病时间、降低发病百分率和发病指数．

Transgenic potato plants expressing PLRV coat protein gene were used as experimental material. The disease rate, disease time and disease index were identified in secondary infected condition. Tests show that in transgenic Potato lines the disease time was delayed and the disease rate was decreased. The disease index of transgenic potato lines is lower than that of nontransformed control plants.