多个驱动因素协同塑造了Bactrocera umbrosa的遗传差异化模式和入侵潜力
Yu Zhang1,2, Weijie Wan1, Tianying Yang1
1State Key Laboratory for Biology of Plant Diseases and Insect Pests, Key Laboratory for Prevention and Control of Invasive Alien Species of Ministry of Agriculture and Rural Affairs, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China.
Pest management science
|October 20, 2025
概括
侵袭性水果害虫Bactrocera umbrosa显示出不同的遗传群体和最近的人口扩张. 气候变化和贸易可能会推动其未来扩散到非洲,美洲和南亚.
科学领域:
- 人口遗传学 人口遗传学
- 生态利基建模 生态利基建模
- 侵入性物种生物学 侵入性物种生物学
背景情况:
- Bactrocera umbrosa是Artocarpus水果的寡食害虫,通过贸易对全球农业构成威胁.
- 了解其人口结构和入侵潜力对于有效管理至关重要.
研究的目的:
- 为了阐明人口结构,历史动态和Bactrocera umbrosa的入侵潜力.
- 为了确定未来入侵的高风险地区.
主要方法:
- 使用321个COI序列进行种群遗传分析.
- 根据当前和未来的气候场景 (SSP1-2.6,SSP5-8.5) 进行生态利基建模.
主要成果:
- 确定了三个族群地理组:西南太平洋 (SWP),东南亚大陆 (MSEA) 和东南亚岛屿 (ISEA).
- 检测到最近的人口扩张,特别是在MSEA,受到地理和人类活动的影响.
- 到2030-2050年,预计范围扩展到热带非洲,亚马逊盆地和东南亚,加勒比海,西非和南亚面临高风险.
结论:
- 地理因素,人类活动和气候变化协同影响B. umbrosa的遗传结构和入侵潜力.
- 洞察力有助于为这种入侵性害虫制定预防性管理策略.
- 加快全球化和气候变化需要采取积极的害虫控制措施.
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