单个线粒体基因在协调完整的线粒体基因组发育过程中的有效性 - - 一个关于矮人黑猩猩的案例研究
Devon C Main1, Jody M Taft2,3, Anthony J Geneva4
1Centre for Ecological Genomics and Wildlife Conservation, University of Johannesburg, Johannesburg, Gauteng, South Africa.
PeerJ
|May 6, 2024
概括
像ND2和COI这样的单个线粒体基因可以可靠地重建矮木的进化历史,类似于使用整个线粒体基因组. 然而,通常使用的16S基因片段不推用于遗传学研究.
科学领域:
- 进化生物学 进化生物学
- 基因组学就是基因组学.
- 分子遗传学分子遗传学
背景情况:
- 基因组规模的数据越来越容易用于遗传学分析.
- 然而,大量的单个线粒体基因片段数据存在于公共存储库中,并且仍在生成.
- 与整个线粒基因组相比,这些单基因片段作为族遗传重建的代理的实用性仍然是一个重要的问题.
研究的目的:
- 为了研究单个线粒体基因的适用性作为植物遗传重建的代理.
- 为了比较从单个线粒体基因和它们的组合中衍生出来的类基因与来自完整线粒体基因组的组合.
- 评估常用线粒体基因碎片在遗传学分析中的可靠性.
主要方法:
- 用南非矮象 (Bradypodion) 几乎完整的分类样本进行了植物遗传学分析.
- 用完整的线粒体基因组估计和比较拓.
- 从单个线粒体基因 (ND2,ND4,ND5,COI,COIII,16S) 和它们的组合中也产生了家族系.
主要成果:
- 从单个线粒体基因 (ND2,ND4,ND5,COI,COIII) 衍生出的系系学拓与从完整的线粒体基因组中获得的类似.
- 这些特定的基因似乎是产生线粒体的可靠标记物,作为整个线粒体组的有效代理.
- 通常使用的16S基因片段产生了不相似的拓,其与ND2的结合削弱了ND2的分辨率.
结论:
- 单个线粒体基因,特别是ND2,ND4,ND5,COI和COIII,是布拉迪波迪翁 (Bradypodion) 遗传学重建的合适代理物.
- 这些基因可以有效地使用,而不是生成整个线粒基因组,提供一种更容易处理的方法.
- 通常在杂类学系统学中使用的16S基因片段,由于其不可靠性,不建议用于未来的遗传学研究.
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