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滑坡:山地隔离和海拔变化影响了Iberolacerta的进化和多样性

Christophe Dufresnes¹, Sven Gippner², Sylvia Hofmann³

¹Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum national d'Histoire naturelle, CNRS, Sorbonne Université, EPHE-PSL, Université des Antilles, 55 rue Buffon, CP 51, 75005 Paris, France.

Molecular phylogenetics and evolution

|November 28, 2025

概括

基因组数据显示,冰川周期塑造了Iberolacerta中的多样性,其遗传结构受到隔离和高度的影响. 基因最多样化的种群,对适应至关重要,在脆弱的低地地区发现.

科学领域:

进化生物学进化生物学
遗传学是一个遗传学.
类学类学类学类学

背景情况:

山地类动物的多样性是由复杂的进化过程驱动的.
伊贝罗拉塞塔属 (Iberolacerta) 包含西南欧洲的八种高海拔,作为研究多样化的模型.

研究的目的:

通过基因组数据,研究Iberolacerta的植物地理和遗传多样性.
了解进化历史,特别是冰川 - 冰川间周期如何塑造了这些山地物种的遗传结构和多样性.

主要方法:

使用基因组数据重建一个核系.
分析历史的核基因流和线粒体内侵入.
对四种高海拔物种进行了内部基因组分析.
生物气候预测以建模历史物种范围.

主要成果:

核系学证实了所有已知的Iberolacerta物种的分歧.
在I. Cyreni和I. Martinezricai之间历史核基因流动的证据.
遗传结构主要是由隔离与距离和山脉分离形成的.
异构性随着高度的增加而降低,这表明高度瓶.
生物气候预测显示,冰川时期的历史范围更广.

结论:

冰川 - 间冰川周期对山地种群的遗传多样性和结构产生重大影响.
由于这些循环,在线粒体和核基因组之间观察到对比的签名.
最富有基因和潜在的适应性种群位于低地地区,这些地区最容易受到气候变化的影响.

关键词:

生物地理学生物地理学生物地理学气候变化气候变化气候变化欧洲欧洲欧洲欧洲欧洲欧洲欧洲类动物 (Lacertidae) 是一种类动物.这就是RAD-seqq.

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