在喜马拉雅山脉的驼的血统之间的白时期的联系通过化石校准的线粒基因基因学揭示了
Cheten Dorji1,2, Mary Morgan-Richards2, Steven A Trewick2
1College of Natural Resources, Royal University of Bhutan, Thimphu P.O. Box 11001, Bhutan.
Insects
|July 29, 2025
概括
驼 (Rhaphidophoridae) 起源于罗纪早期,早于大陆分裂. 它们在东亚的辐射驳斥了大陆漂移在它们进化中的意义.
科学领域:
- 进化生物学 进化生物学
- 分子遗传学分子遗传学
- 昆虫学 昆虫学是一门学科.
背景情况:
- (Rhaphidophoridae) 是一种夜间活动的,不飞的昆虫,分布在全球.
- 以前的假设表明,它们的起源早于潘盖亚的解体.
研究的目的:
- 为了研究东亚驼鱼物种的种系和进化时间.
- 通过分子数据确认子家族的单属性,并评估当前的分类学.
主要方法:
- 来自117个种群的线粒体和核DNA序列的分析.
- 化石校准的分子时钟分析使用11,124 bp对准20种物种的13个线粒体蛋白质编码基因.
- 专注于Rhaphidophorinae和Aemodogryllinae血统的研究.
主要成果:
- 确认了Aemodogryllinae内的属的单性,导致*Gymnaeta*属的复活.
- 估计Rhaphidophoridae在罗纪早期 (189万年前±23万年前) 的最近的共同祖先.
- 拉菲多霍里纳和艾莫多格里利纳的分歧估计在138万年前±17万年前,比林陆桥之前.
结论:
- 拉菲多科的进化历史早于重要的大陆漂移事件.
- 包括林陆桥在内的大陆漂移被驳斥为这种无翼形动物家族进化的主要驱动因素.
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