New Phytologist|多倍体系统发育

多倍性是现存植物多样性的主要特征。

然而,由于与多倍体谱系数据的生成和分析相关的困难,主要的研究问题(包括多倍体对长期进化是否重要还是仅仅是“进化噪声”)仍未解决。

最近已经克服了许多困难,因此现在推断相对较简单的方法来推断最近形成的多倍体群体的完整且经常是网状的系统发育史。 

多倍体系统发育流程的动画

“多倍体系统发育”这一新兴领域使研究人员能够解决长期存在的多倍体宏观进化问题,为多倍体变化的机理模型提供基础,并提供机会在我们的总体分析中包括更完整和更具代表性的植物分类学样本。

Polyploidy is a dominant feature of extant plant diversity. However, major research questions, including whether polyploidy is important to long-term evolution or is just ‘evolutionary noise’, remain unresolved due to difficulties associated with the generation and analysis of data from polyploid lineages. Many of these difficulties have been recently overcome, such that it is now often relatively straightforward to infer the full and often reticulate phylogenetic history of groups with recently formed polyploids. This nascent field of ‘polyploid phylogenetics’ allows researchers to tackle long-standing questions of polyploid macroevolution, supplies the foundation for mechanistic models of ploidy change, and provides the opportunity to include a more complete and representative sample of plant taxa in our analyses in general.

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