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使用种群遗传方法阐明新墨西哥州引入的公牛青的入侵历史

Celina M Eberle¹, Daniele L F Wiley¹, Chris X McDaniels¹

¹Department of Biology, University of New Mexico, Albuquerque, NM, United States.

|January 14, 2026

概括

基因分析显示,新墨西哥州的美国公牛青很可能起源于单一的引入事件. 与本地种群相比,这种入侵物种的遗传多样性较低,这突显了需要有效的管理策略的需要.

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:

美国公牛青 (Rana (Aquarana) catesbeiana) 是一种全球侵入性物种,影响着世界各地的生态系统.
它在美国西部,特别是新墨西哥州的引入历史,尽管它对生态的影响仍然不太了解.

研究的目的:

用种群遗传方法调查美国牛在新墨西哥州的入侵历史.
评估遗传多样性,识别单元型,比较本地和入侵种群,并推断引入来源.

主要方法:

对单个线粒体基因区域 (cytochrome b) 的分析.
种群遗传方法包括哈普洛型和核酸多样性估计,对联 ΦST,以及分子变异分析 (AMOVA).

主要成果:

在新墨西哥州的牛种群中发现了适度的遗传变异,在人类活跃的地点有更高的多样性.
新墨西哥州引入的种群的遗传多样性明显低于本地种群.
在新墨西哥州发现了8种单双类型,其中6种与本地和其他引入范围共享.
新墨西哥地区之间最小的遗传差异表明存在单一的引入来源.

结论:

这项研究表明,美国公牛青在新墨西哥州只有一次引入活动.
侵入性种群中较低的遗传多样性与最近的殖民模式保持一致.
这些发现强调了管理入侵物种的迁移的重要性,并利用遗传数据了解入侵动态.

关键词:

雄牛青雄牛青在线观看侵袭遗传学侵袭遗传学侵入性物种是一种入侵性物种.新墨西哥州的新墨西哥州人口遗传学人口遗传学拉纳卡特斯贝亚纳 (Rana Catesbeiana) 是一个

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