Twenty-five well-justified fossil calibrations for primate divergences
Twenty-five well-justified fossil calibrations for primate divergences
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DOI：
10.26879/1249
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发表时间：
2023-02-23
影响因子：
2
通讯作者：
Beck, Robin M. D.
中科院分区：
文献类型：
--
作者：
de Vries, Dorien;Beck, Robin M. D.
系统发育与分歧时间的估计是必不可少的调查许多进化问题。原则上，“尖端测年”可以说是最合适的方法，化石和现存分类群一起分析在一个单一的分析，拓扑结构和分歧时间估计同时进行。然而，“节点定年”（如许多分子钟分析中所使用的），其中化石证据被用来校准特定节点的先验年龄，可能仍然是主要的方法，由于各种问题与分析形态和分子数据在一起。在这里，我们提供了一个列表，25个合理的节点校准灵长类动物的分歧，以下最佳实践：16内单鼻，4内Strepsirrhini，冠灵长类动物之一，和4内Euarchontoglires老分歧。在每种情况下，我们提供了一个硬最小边界，对于其中的22个，我们还提供了一个软最大边界和一个建议的先验分布。对于每个校准的节点，我们提供了每个子代谱系的最古老化石的年龄，这允许使用“CladeAge”方法来指定节点年龄的先验。
Phylogenies with estimates of divergence times are essential for investigating many evolutionary questions. In principle, "tip-dating" is arguably the most appropriate approach, with fossil and extant taxa analysed together in a single analysis, and topology and divergence times estimated simultaneously. However, "node-dating" (as used in many molecular clock analyses), in which fossil evidence is used to calibrate the age of particular nodes a priori, will probably remain the dominant approach, due to various issues with analysing morphological and molecular data together. Here, we provide a list of 25 well-justified node calibrations for primate divergences, following best practices: 16 within Haplorhini, four within Strepsirrhini, one for crown Primates, and four for older divergences within Euarchontoglires. In each case, we provide a hard minimum bound, and for 22 of these we also provide a soft maximum bound and a suggested prior distribution. For each calibrated node, we provide the age of the oldest fossil of each daughter lineage that descends from it, which allows use of the "CladeAge" method for specifying priors on node ages.