东方狐松鼠 (Sciurus niger) 在原生和引入的地点表现出最小的植物地理模式
Noah Armstrong1, Dylan M Klure1, Robert Greenhalgh1
1School of Biological Sciences, University of Utah, 257 S. 1400 E. Room 201, Salt Lake City, UT 84102, United States.
Journal of mammalogy
|March 27, 2025
概括
引入的东方狐松鼠显示最小的遗传结构,表明最近的扩张. 加利福尼亚的引入可能来自多个来源,而犹他州的引入可能来自多个来源.
科学领域:
- 生态生态学 生态生态学
- 遗传学 是一个遗传学.
- 保护生物学 保护生物学
背景情况:
- 引入的物种威胁全球生物多样性,并造成重大经济损失.
- 种群遗传学有助于管理入侵物种,如东方狐松鼠 (Sciurus niger).
- 东方狐松鼠是成功的入侵者,在北美西部引入.
研究的目的:
- 评估东方狐松鼠在本地和引入范围的植物地理结构.
- 为了确定加利福尼亚州和犹他州引入的数量和地理来源.
- 为管理侵入性狐松鼠种群提供基因组资源.
主要方法:
- 使用低通全基因组测序.
- 对原生和引入范围的植物地理结构进行了评估.
- 分析了线粒体单质类型,以推断引入事件.
主要成果:
- 观察到最小的植物地理结构,与最近的扩张一致.
- 在加利福尼亚州发现了多个线粒体单双类型,这表明了多个引入.
- 在犹他州发现了一种单一的线粒体单双型,表明单一的引入事件.
结论:
- 东方狐松鼠在加利福尼亚的引入很可能是多个事件的结果.
- 犹他州的狐松鼠种群可能起源于一个单一的引入.
- 基因组数据将支持未来对入侵性狐松鼠的保护和管理.
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