使用ALE和GeneRax进行参数估计和物种树根植
Tom A Williams1, Adrián A Davín2, Benoit Morel3,4
1School of Biological Sciences, University of Bristol, 24 Tyndall Ave, Bristol BS8 1TH, United Kingdom.
Genome biology and evolution
|July 18, 2023
概括
基因树-物种树和解工具,如ALE和GeneRax准确地推断基因进化事件和根物种树. 尽管最近有批评,但这些方法对于研究各种生命形式的基因组进化是可靠的.
科学领域:
- 人类遗传学 是一个学科.
- 计算生物学 计算生物学
- 进化基因组学 进化基因组学
背景情况:
- 可能性基因树-物种树和解方法,包括ALE和GeneRax,用于推断基因重复,转移和丢失事件.
- 这些方法是绘制基因家族起源和植根物种树木的基础,先前在古生物,细菌和真核生物中应用过.
- 最近的担忧是质疑基于ALE/GeneRax模型的重复和转移事件估计的可靠性,这可能会影响物种树的根植.
研究的目的:
- 严格评估关于ALE/GeneRax调和方法准确性的批评.
- 验证这些工具用于推断基因复制,转移和丢失事件的可靠性.
- 评估这些方法对物种树木根植在不同生命领域的影响.
主要方法:
- 利用模拟数据集在受控条件下测试ALE/GeneRax的准确性.
- 将ALE/GeneRax结果与使用经验生物数据的替代方法方法进行比较.
- 分析了基因复制和转移频率跨越各种血统,以评估生物的一致性.
主要成果:
- ALE和GeneRax在模拟数据上证明了准确性.
- 在经验数据上,ALE/GeneRax的结果与替代方法有很好的一致性.
- ALE成功地捕获了基因复制和跨系基因转移率的生物学相关变异.
- 在植物和opisthokonts.onts.中,ALE始终恢复了已建立的物种树根.
- 在细菌中,ALE的根预测与不确定性区域的其他方法保持一致.
结论:
- ALE/GeneRax模型和基于和解的方法被验证为研究基因组进化的准确工具.
- 这些方法可靠地推断出基因复制,转移和损失事件,并有助于物种树根植.
- ALE恢复生物学上一致的模式的能力加强了它在进化基因组学研究中的实用性.
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