Behavioral and electrophysiological responses of Helicoverpa assulta, H-armigera (Lepidoptera: Noctuidae), their F1 hybrids and backcross progenies to sex pheromone component blends
Behavioral and electrophysiological responses of Helicoverpa assulta, H-armigera (Lepidoptera: Noctuidae), their F1 hybrids and backcross progenies to sex pheromone component blends
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DOI：
10.1007/s00359-006-0141-6
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发表时间：
2006-10-01
影响因子：
2.1
通讯作者：
Wang, Chen-Zhu
中科院分区：
文献类型：
--
作者：
Zhao, Xin-Cheng;Yan, Yun-Hua;Wang, Chen-Zhu
棉铃虫和棉铃虫都以(Z)-9- 16 -烯醛和(Z)-11- 16 -烯醛作为性信息素成分，但两者的比例几乎相反，分别为93:7和3:97。在性信息素混合的情况下，刺蝽和棉蚜雄性进行逆风飞行（93:7）。棉铃虫对棉铃虫混合物反应强烈（3:97），而雄性棉铃虫在暴露于这种混合物后仍然不活跃。这两个物种对(Z)-11-十六烯醛都有明显的剂量依赖性电生理反应。然而，(Z)-9-十六烯醛引起了强剂量依赖性的电生理反应，而在棉铃虫中没有。两个雄性F-1杂交种对两种性信息素混合物的行为反应和对两种信息素成分的电生理反应与雄性棉铃虫相似。这表明，在决定行为反应和电生理反应方面，棉铃虫基因具有显性作用。雄性F-1杂交种（雌棉铃虫与雄棉铃虫）与雌棉铃虫和棉铃虫回交的行为和电生理反应分别接近于雌棉铃虫和棉铃虫。然而，雌F-1型杂交种（刺蚜雌与棉铃虫雄）与雄刺蚜和棉铃虫回交时，与各自亲本的雄虫相比，行为反应有所降低，但电生理反应正常。
Two sibling species, Helicoverpa assulta and Helicoverpa armigera both use (Z)-9-hexadecenal and (Z)-11-hexadecenal as their sex pheromone components but in almost reversed ratios, 93:7 and 3:97, respectively. H. assulta and H. armigera males performed upwind flight in response to the H. assulta sex pheromone blend (93:7). H. armigera responded strongly to the H. armigera blend (3:97), whereas H. assulta males remained inactive upon exposure to this blend. Both species gave clear dose-dependent electrophysiological responses to (Z)-11-hexadecenal. However, (Z)-9-hexadecenal evoked strong dose-dependent electrophysiological responses in H. assulta males but not in H. armigera. The two male F-1 hybrids exhibited similar behavioral responses to two sex pheromone blends and electrophysiological responses to two pheromone components as H. armigera males. This indicated that H. armigera genes appear dominant in determining the behavioral response and electrophysiological responses. Behavioral and electrophysiological responses of backcrosses of male F-1 hybrids (H. armigera female x H. assulta male) with female H. assulta and H. armigera were close to that of H. assulta and H. armigera, respectively. However, backcrosses of female F-1 hybrids (H. assulta female x H. armigera male) with male H. assulta and H. armigera showed reduced behavioral responses but normal electrophysiological responses compared to males of the respective parental line.