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小虫 (Pedetontus) 和小虫 (Pedetontinus) (昆虫:Archaeognatha) 的比较线粒基因组学揭示了植物系,分歧历史和适应性进化

Wei Cen¹, Ting Yang¹, Jia-Wen Li¹

¹College of Life Sciences, Zhejiang Normal University, Jinhua 321004, China.

|December 30, 2025

概括

古代昆虫系之一的Archaeognatha起源于碳岩纪晚期. 线粒体基因组分析揭示了偏的马奇里达和马奇里纳,促使对Pedetontus物种划分进行修订.

科学领域:

进化生物学进化生物学
昆虫的遗传学昆虫的遗传学
分子系统学分子系统学

背景情况:

考古格纳塔 (Archaeognatha) 代表了现存昆虫的基底血统,其未解决的内部遗传关系和分歧时间.
了解Archaeognatha的进化历史对于昆虫的种类学和多样化研究至关重要.

研究的目的:

用线粒体基因组来澄清家族遗传关系并估计Archaeognatha内部的分歧时间.
为了研究Archaeognatha中属的单,特别是Pedetontus和Pedetontinus.

主要方法:

组装和分析来自Pedetontus和Pedetontinus物种的14个线粒体基因组.
遗传学分析 (例如,贝叶斯推理) 来重建进化关系.
使用分子钟方法估计分离时间.
分支站点模型分析以检测特定基因中的积极选择.

主要成果:

遗传学分析表明,马奇里达科和马奇里纳科是偏爱的.
佩德托斯 (Pedetontinus) 形成了一个单类,而佩德托斯 (Pedetontus) 种类不是单类.
考古格纳塔起源于晚石灰岩时期 (大约. 30亿年前),多元化延伸到现在.
植物的适应辐射和植物昆虫的共同进化被认为是多样化的驱动因素.
在Cytb,ATP6和COI基因中检测到积极选择的位点,特别是在热带Pedetontus物种中.

结论:

目前对Pedetontus物种划分的形态标准需要修订.
线粒体基因组数据为Archaeognatha的原生态和分歧提供了关键的见解.
植物辐射和共同进化等环境因素可能影响了Archaeognatha的多样化.

关键词:

脚牙 (英语:Pedetontinus) 是一个脚牙.一个叫Pedetontus的人.差异时间是分歧时间.线粒子基因组 (mitogenomes) 是一种细胞基因组.人类的基因组学.选择性的压力分析.

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