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Histories of molecules: Reconciling the past

机译:分子的历史:协调过去

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Molecular data and methods have become centrally important to evolutionary analysis, largely because they have enabled global phylogenetic reconstructions of the relationships between organisms in the tree of life. Often, however, molecular stories conflict dramatically with morphology -based histories of lineages. The evolutionary origin of animal groups provides one such case. In other instances, different molecular analyses have so far proved irreconcilable. The ancient and major divergence of eukaryotes from prokaryotic ancestors is an example of this sort of problem. Efforts to overcome these conflicts highlight the role models play in phylogenetic reconstruction. One crucial model is the molecular clock; another is that of 'simple -to -complex' modification. I will examine animal and eukaryote evolution against a backdrop of increasing methodological sophistication in molecular phylogeny, and conclude with some reflections on the nature of historical science in the molecular era of phylogeny. (C) 2015 Elsevier Ltd. All rights reserved.
机译:分子数据和方法对于进化分析已经变得至关重要,这在很大程度上是因为分子数据和方法已经实现了生命树中生物之间关系的全局系统发育重建。但是,分子故事常常与基于形态的谱系历史发生重大冲突。动物群体的进化起源提供了一种这样的情况。在其他情况下,迄今已证明不同的分子分析是不可调和的。真核生物与原核祖先的古代和主要分歧是这种问题的一个例子。克服这些冲突的努力突显了模型在系统发育重建中的作用。一种重要的模型是分子钟。另一个是“从简单到复杂”的修改。我将在分子系统发生学方法日益复杂化的背景下研究动物和真核生物的进化,并对系统进化学分子时代的历史科学性质进行一些反思。 (C)2015 Elsevier Ltd.保留所有权利。

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