Insect Chemical Ecology Laboratory Agricultural Research Service, U.S. Department of Agriculture, 20705, Beltsville, Maryland.
J Chem Ecol. 1989 Apr;15(4):1259-65. doi: 10.1007/BF01014828.
Analysis of ovipositor extracts of lab-reared (> 120 generations) and wildHeliothis zea indicated small but significant differences in the percent composition of the four aldehyde components of the sex pheromone. (Z)-11-hexadecen-1-ol (Z11-16∶OH) was present in both populations and amounted to only 2.8% of the total pheromone. There was no significant difference in four of the six behavioral categories between lab-reared and wild males exposed to the four-component sex pheromone in the flight tunnel. Ninety and 84% males flew to the pheromone source, respectively. However, with the addition ofZ11-16∶OH to the pheromone blend, none of the wild males flew upwind to the stimulus source, whereas 36% of the lab-reared males completed the flight. It is suggested that prolonged inbreeding in closed quarters rendered these males less discriminating to qualitative differences in a pheromone blend.
对实验室饲养（超过 120 代）和野生的棉铃虫的产卵器提取物进行分析表明，性信息素中四种醛成分的组成百分比存在微小但显著的差异。（Z）-11-十六碳烯-1-醇（Z11-16∶OH）存在于这两个种群中，仅占性信息素总量的 2.8%。在飞行隧道中，暴露于四组分性信息素的实验室饲养和野生雄性在六个行为类别中的四个方面没有显著差异。分别有 90%和 84%的雄性飞向性信息素源。然而，在性信息素混合物中添加 Z11-16∶OH 后，没有一只野生雄性顺风飞向刺激源，而 36%的实验室饲养雄性完成了飞行。这表明，长期近亲繁殖使这些雄性对信息素混合物中定性差异的辨别能力降低。
