Nikolakakis N N, Margaritopoulos J T, Tsitsipis J A
Laboratory of Entomology and Agricultural Zoology, Department of Crop Production and Agricultural Environment, University of Thessaly, Fytokou Str. 38 446, Nea Ionia, Magnesia, Greece.
Bull Entomol Res. 2003 Jun;93(3):235-42. doi: 10.1079/BER2003230.
The performance of eighteen clones of Myzus persicae (Sulzer) on pepper and tobacco plants at 20 degrees C and L16:D8 and the choice of young adult apterae between tobacco and pepper leaf-discs were examined. The clones were collected from weeds and peach in two tobacco-growing regions: Katerini, northern Greece and Karditsa, central Greece (only from weeds) and from Lehonia, central eastern Greece where tobacco is not cultivated. All clones did well on both hosts. However, the analysis of data revealed a significant effect of "region / host plant origin" on aphid performance. The mean values of adult weight, intrinsic rate of increase and fecundity of the clones collected in Lehonia and reared on tobacco were significantly lower than the observed values for clones from Katerini and Karditsa. Aphids from Lehonia had significantly higher mean values for developmental time on tobacco than clones from the other regions whereas the opposite was observed when aphids were reared on pepper. Aphids collected in Lehonia performed better on pepper than those originating from the tobacco-growing regions. A choice test revealed differences among the clones originating from different regions. Fifty three percent and 43% of aphids from weeds and peach from Lehonia, respectively, chose pepper. By comparison 41.5% and 40.0% of aphids from peach and weeds from Katerini, respectively and 49.5% of aphids from Karditsa preferred tobacco. The results are discussed in relation to host specialization in M. persicae.
在20摄氏度、光照周期为16小时光照：8小时黑暗的条件下，研究了18个桃蚜（烟蚜）（Myzus persicae (Sulzer)）克隆品系在辣椒和烟草植株上的表现，以及未成熟无翅成蚜在烟草和辣椒叶盘之间的选择情况。这些克隆品系分别采集自希腊北部卡特里尼和希腊中部卡尔季察（仅采集自杂草）这两个烟草种植区的杂草和桃树，以及希腊中东部未种植烟草的莱奥尼亚地区。所有克隆品系在两种寄主植物上均生长良好。然而，数据分析显示“地区/寄主植物来源”对蚜虫表现有显著影响。在莱奥尼亚采集并饲养在烟草上的克隆品系，其成虫体重、内禀增长率和繁殖力的平均值显著低于在卡特里尼和卡尔季察采集的克隆品系的观测值。来自莱奥尼亚的蚜虫在烟草上的发育时间平均值显著高于其他地区的克隆品系，而当蚜虫饲养在辣椒上时则观察到相反的情况。在莱奥尼亚采集的蚜虫在辣椒上的表现优于来自烟草种植区的蚜虫。一项选择试验揭示了来自不同地区的克隆品系之间存在差异。分别有53%和43%来自莱奥尼亚杂草和桃树的蚜虫选择了辣椒。相比之下，分别有41.5%和40.0%来自卡特里尼桃树和杂草的蚜虫，以及49.5%来自卡尔季察的蚜虫更喜欢烟草。结合桃蚜的寄主专化性对结果进行了讨论。
