Morphological and phylogeographic evidence for budding speciation: an example in hominins
Morphological and phylogeographic evidence for budding speciation: an example in hominins
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萌芽物种形成的形态学和系统地理学证据：古人类的例子
DOI：
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
C. Parins
中科院分区：
文献类型：
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作者：
C. Parins
参数系统发育的方法，试图描绘不同的“模式”的物种形成（分裂分支，萌芽分支，和anagenesis）之间的化石类群之间已经成为比较生物学家越来越受欢迎。但是，与作为其基础的谱系多样化模型相比，来自化石分类群的形态学数据如何清楚地说明物种形成模式的详细问题，这一点还没有得到很好的理解。此外，使用这些方法与地理模式的推论的一致性还没有被探讨。在这里，我扩展了以前介绍的最大似然法检查祖先后代的关系，以适应萌芽形态，并将其应用到化石古人类的数据集。我把这些结果在一个新的地理背景下，以更好地了解空间动态的假设物种形成模式。古人类发生所暗示的空间模式暗示了在整个更新世人类的扩散和多样化背后的复杂的人口统计过程。我还发现，萌芽的推论主要是由地层驱动的，与形态，数据和讨论的衍生物的物种形成过程中的解释，特别是在人类和一般的系统发育数据。
Parametric phylogenetic approaches that attempt to delineate between distinct ‘modes’ of speciation (splitting cladogenesis, budding cladogenesis, and anagenesis) between fossil taxa have become increasingly popular among comparative biologists. But it is not yet well-understood how clearly morphological data from fossil taxa speak to detailed questions of speciation mode as compared to the lineage diversification models that serve as their basis. In addition, the congruence of inferences made using these approaches with geographic patterns has not been explored. Here, I extend a previously introduced maximum-likelihood approach for the examination of ancestor-descendant relationships to accommodate budding speciation and apply it to a dataset of fossil hominins. I place these results in a phylogeographic context to better understand spatial dynamics underlying the hypothesized speciation patterns. The spatial patterns implied by the phylogeny hint at the complex demographic processes underlying the spread and diversification of hominins throughout the Pleistocene. I also find that inferences of budding are driven primarily by stratigraphic, versus morphological, data and discuss the ramifications for interpretations of speciation process in hominins specifically and from phylogenetic data in general.
影响因子：
16.6
作者：
Bansal V;Mitjans M;Burik CAP;Linnér RK;Okbay A;Rietveld CA;Begemann M;Bonn S;Ripke S;de Vlaming R;Nivard MG;Ehrenreich H;Koellinger PD
通讯作者：
Koellinger PD