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马达加斯加的真 (Eulemur属) 基因流动的普遍历史

Kathryn M Everson^1,2, Mariah E Donohue², David W Weisrock²

¹Department of Integrative Biology, Oregon State University, Corvallis, OR 97331, USA.

|June 28, 2023

概括

跨物种基因流在真 (Eulemur) 中很常见. 杂交挑战了物种界限,这表明网络化事件塑造了它们的进化,需要对分类学的关注.

科学领域:

进化生物学进化生物学
遗传学是一个遗传学.
灵长类动物的原生学.

背景情况:

跨种基因流越来越多地在不同的种类中被认可.
在基因流动中维护物种界限,并在系遗传学分析中考虑网状结构仍然是关键的挑战.
马达加斯加真正的 (Eulemur) 提供了一个模型系统,因为他们最近的辐射和众多的混合区.

研究的目的:

为了研究跨物种基因流对Eulemur属内的物种界限的影响.
为了重建Eulemur的遗传学历史,考虑到网状事件.
评估遗传数据与当前分类学之间的一致性.

主要方法:

用数百个个体的线粒体DNA进行了家族遗传学分析.
用数百个来自个体子集的核遗传基因位点进行家族遗传学分析.
应用传统的基于凝聚的和基于网络的族群遗传学方法.

主要成果:

基于凝聚的分析表明,并非所有公认的Eulemur物种都是单体的.
基于网络的方法支持一种物种树,具有1到3个古老的网络事件.
有证据表明,杂交在历史上和现在的Eulemur进化中发挥了重要作用.

结论:

杂交是Eulemur属中一个突出的进化力量.
目前的物种界限可能不完全反映复杂的网状细胞进化历史.
建议增加对Eulemur的分类学重点,以确定明确的地理边界和保护优先事项.

关键词:

欧元的价值观欧元的价值观马达加斯加马达加斯加马达加斯加基因流是指基因的流动.人类遗传学遗传学它们是灵长类的灵长类.系统学是一种系统学.

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