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侵袭后的选择作用于尽管存在严重的基础瓶,但仍然存在遗传变异

Kathleen A Dogantzis¹, Rika Raffiudin², Ramadhani Eka Putra³

¹York University, Department of Biology, 4700 Keele Street, Toronto, ON M3J 1P3, Canada.

Current biology : CB

|March 1, 2024

概括

像亚洲蜜蜂这样的生物入侵者可以迅速适应,尽管存在遗传瓶. 选择有利于由创始人引入的现有遗传变异,即使在严重减少人口后,也可以实现适应.

科学领域:

进化生物学是进化的生物学.
遗传学遗传学是一个
生态生态学生态生态学

背景情况:

与本地范围相比,侵入性种群往往表现出减少的遗传多样性.
尽管存在瓶,但入侵物种可以快速适应,这引发了关于遗传多样性在适应中的作用的辩论.
了解入侵后的适应对于管理生物入侵至关重要.

研究的目的:

通过在澳大利亚的入侵性亚洲蜜蜂 (Apis cerana) 的10年时间序列数据集,研究创始事件之后的自然选择.
确定遗传瓶是否限制了入侵种群的适应.
为了确定早期入侵阶段的选择所针对的遗传变异的来源.

主要方法:

在10年内收集的Apis cerana样本的全基因组再测序.
对遗传多样性和入侵创始事件后的人口扩张的分析.
在积极选择下检测位点和对等位基起源的调查.

主要成果:

澳大利亚Apis cerana种群是由一个单一的殖民地建立的,经历了严重的遗传瓶和多样性丧失.
尽管存在瓶,但在入侵后的早期发现了积极选择的迹象.
选择主要作用于由创始人引入的基因变异,而不是新的突变.

结论:

严重的创建瓶并不一定会阻止入侵种群的快速适应.
站在基因变异上的选择在入侵物种的早期适应中起着重要作用.
这项研究强调了创始人遗传变异对于成功的生物入侵的重要性.

关键词:

黄斑类动物 (Hymenoptera) 是一个类动物.适应适应适应适应瓶瓶瓶瓶是指一个瓶.这是创始人效应.遗传多样性遗传多样性蜜蜂,蜜蜂,蜂蜜,蜂蜜,蜂蜜,蜂蜜,蜂蜜,蜂蜜,蜂蜜,蜂蜜,蜂蜜,蜂蜜这是一种侵入性侵袭性疾病.突变是一种突变.时间序列时间序列进行全基因组再测序.

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