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首页> 外文期刊>Genetica >The utility of microsatellite DNA markers for the evaluation of area-wide integrated pest management using SIT for the fruit fly, Bactrocera dorsalis (Hendel), control programs in Thailand
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The utility of microsatellite DNA markers for the evaluation of area-wide integrated pest management using SIT for the fruit fly, Bactrocera dorsalis (Hendel), control programs in Thailand

机译：利用微卫星DNA标记物对泰国实蝇，实蝇小实蝇（Hendel）的控制程序使用昆虫不育技术评估区域综合有害生物管理

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摘要

The oriental fruit fly, Bactrocera dorsalis (Hendel), is a key pest that causes reduction of the crop yield within the international fruit market. Fruit flies have been suppressed by two Area-Wide Integrated Pest Management programs in Thailand using Sterile Insect Technique (AW-IPM-SIT) since the late 1980s and the early 2000s. The projects' planning and evaluation usually rely on information from pest status, distribution, and fruit infestation. However, the collected data sometimes does not provide enough detail to answer management queries and public concerns, such as the long term sterilization efficacy of the released fruit fly, skepticism about insect migration or gene flow across the buffer zone, and the re-colonisation possibility of the fruit fly population within the core area. Established microsatellite DNA markers were used to generate population genetic data for the analysis of the fruit fly sampling from several control areas, and non-target areas, as well as the mass-rearing facility. The results suggested limited gene flow (m<0.100) across the buffer zones between the flies in the control areas and flies captured outside. In addition, no genetic admixture was revealed from the mass-reared colony flies from the flies within the control area, which supports the effectiveness of SIT. The control pests were suppressed to low density and showed weak bottleneck footprints although they still acquired a high degree of genetic variation. Potential pest resurgence from fragmented micro-habitats in mixed fruit orchards rather than pest incursion across the buffer zone has been proposed. Therefore, a suitable pest control effort, such as the SIT program, should concentrate on the hidden refuges within the target area.
机译：东方实蝇Bactrocera dorsalis（Hendel）是导致国际水果市场上农作物减产的主要害虫。自1980年代末和2000年代初以来，泰国的两个区域性虫害综合防治计划都使用不育昆虫技术（AW-IPM-SIT）抑制了果蝇。项目的计划和评估通常依赖于害虫状况，分布和果实侵染的信息。但是，收集到的数据有时不能提供足够的细节来回答管理问题和公众关注，例如释放的果蝇的长期灭菌效力，对昆虫迁移或基因在整个缓冲区的流动的怀疑以及重新定殖的可能性核心区域内果蝇种群的数量。已建立的微卫星DNA标记用于生成种群遗传数据，以分析来自几个控制区域，非目标区域以及大规模繁殖设施的果蝇采样。结果表明，在控制区的果蝇和被捕获的果蝇之间的缓冲区之间的基因流有限（m <0.100）。此外，在控制区内的蝇类中，从大量繁殖的菌落中没有发现遗传混合物，这支持了昆虫不育技术的有效性。对照害虫虽然仍具有很高的遗传变异性，但被抑制为低密度并显示出较弱的瓶颈足迹。已经提出了从混合果园中零散的微生境中潜在的有害生物复活，而不是有害生物跨缓冲区扩散的提议。因此，采取适当的虫害控制措施（例如SIT计划）应集中于目标区域内的隐藏避难所。

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