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在出生-死亡转移过程下推断分支特定的血统多样化率

Sebastian Höhna^1,2, William A Freyman³, Zachary Nolen⁴

¹Department of Earth and Environmental Sciences, Paleontology & Geobiology, Ludwig-Maximilians-Universität München, 80333 Munich, Germany.

Systematic biology

|January 24, 2026

概括

我们引入了一种新的出生-死亡-转移 (BDS) 模型,以估计跨谱系的物种化和灭绝率. 这种灵活的模型解释了现存,灭绝和未采样血统的利率变化,提供了可靠的多元化率估计.

科学领域:

进化生物学进化生物学
人类遗传学是一个学科.
计算生物学计算生物学

背景情况:

估计物种化和灭绝率对于理解生物多样性至关重要.
现有的模型往往难以解释所有谱系 (现存,灭绝和未采样) 的速率变化.

研究的目的:

引入一种新的随机多样化模型,即出生-死亡转移 (BDS) 过程.
开发一个贝叶斯的框架来估计血统特定的多样化率,以适应利率变化.

主要方法:

开发了出生死亡转移 (BDS) 过程模型.
采用贝叶斯统计框架进行参数估计,使用现存血统的族系.
通过模拟研究验证了该模型,并将其应用于灵长类动物数据集.

主要成果:

在BDS过程中,有效地估计了跨现存,灭绝和未采样血统的多样化率.
具体行业的多元化利率估计与先前关于利率变动数量的假设保持一致.
在RevBayes中的模型实现提供了一个统计学上连贯的方法.

结论:

BDS过程提供了一种灵活且统计学上合理的方法来推断复杂的多元化动态.
这种方法提高了我们研究进化历史和生物多样性模式的能力.
该模型是进化生物学家分析遗传学数据的宝贵工具.

关键词:

生死过程生死过程.血统多样化率血统多样化率人类的家谱 (Phylogeny) 是一个学科.这就是为什么RevBayes.

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