皮里达本度对Neoseiulus womersleyi的发育,繁殖和Vg基因表达的影响
Juan Wei1, Chengcheng Li1, Cancan Song1
1College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China.
Insects
|January 28, 2026
概括
皮里达暴露会对掠食性虫,Neoseiulus womersleyi,一代又一代的伤害. 这种杀虫剂通过抑制重要的维特洛根因 (Vg) 基因来破坏繁殖和人口增长.
科学领域:
- 昆虫学 昆虫学是一门学科.
- 农药毒理学 农药毒理学
- 综合性害虫防治 (IPM) 是一种整合性害虫防治方法.
背景情况:
- 掠食性虫Neoseiulus womersleyi对于IPM至关重要.
- 像pyridaben这样的糖化物对有益的昆虫构成风险.
- 农药的非目标效应威胁到IPM战略.
研究的目的:
- 为了研究pyridaben对N.N.的跨代性亚致命作用. 女人的遗憾.
- 探索维特洛根因 (Vg) 基因在pyridaben的毒性中的作用.
- 了解pyridaben对虫繁殖和种群动态的影响背后的机制.
主要方法:
- 两性生活表分析以评估多代影响.
- 在LC30和LC50度下暴露于pyridaben.
- 对Vg基因 (NwVg1,NwVg2) 的克隆和表征.
- 基因表达分析和RNAi介导的基因沉默.
主要成果:
- 皮里达暴露减少了女性的寿命,生育能力和卵置期.
- 不成熟的发育被延长,在F1后代中,人口增长参数 (r,λ) 被抑制.
- 皮里达显著降低了NwVg1和NwVg2的基因表达.
- 对NwVg1或NwVg2的RNAi沉默模仿了pyridaben的生殖效应.
结论:
- 皮里达本在N.N.中诱导了多代的生殖成本. 女人的遗憾.
- 皮里达本的生殖毒性部分是通过抑制维特洛根因合成来调节的.
- 这些发现强调了在IPM的农药风险评估中考虑跨代影响的重要性.
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