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农作物多样性诱导微生物生物杀虫剂易感性的权衡,这可能会延迟害虫耐药性的演变
Rosie M Mangan1, Matthew C Tinsley1, Ester Ferrari1
1Biological and Environmental Sciences, School of Natural Sciences, University of Stirling, Stirling, United Kingdom.
PLoS pathogens
|May 20, 2025
概括
害虫生存的遗传变异是由于饮食而持续存在的,而不是病原体类型. 这突显了生物农药耐药性演变的风险,这是由饮食中介的权衡驱动的,而不仅仅是感染反应.
科学领域:
- 生态生态学 生态生态学
- 进化生物学 进化生物学
- 农业科学 农业科学
背景情况:
- 病原体驱动宿主选择,但防御的遗传变异仍然存在.
- 饮食等环境因素可能会造成健身权衡,影响宿主等位基因固定.
- 了解害虫耐药性的演变对于生物控制的有效性至关重要.
研究的目的:
- 研究病原体身份与宿主饮食对害虫生存的遗传变异的相对影响.
- 在不同的病原体和饮食条件下量化昆虫害虫生存的遗传变异和共变异.
- 确定与自然和农业害虫种群相关的健康权衡的驱动因素.
主要方法:
- 昆虫害虫的生存量化的遗传变异和共变.
- 害虫暴露于不同组合的真菌病原体感染和植物饮食.
- 在实验条件下分析了等位体适应性.
主要成果:
- 证明了对害虫生存的可观遗传性,表明生物杀虫剂耐药性演变的风险.
- 没有发现强大的遗传权衡,以生存不同的真菌病原体.
- 揭示了重要的饮食中介遗传权衡影响害虫生存.
结论:
- 饮食,而不是病原体类型,强烈影响选择,并保持害虫种群的遗传变异.
- 饮食中介的权衡,可能与直接感染反应无关,是理解遗传变异的关键.
- 这些发现对在自然和农业系统中管理害虫耐药性的影响很大.
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