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arXiv 2007.08782q-bio.PE
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基于马尔可夫过程生成数据的一级系统发育网络判别

Distinguishing level-1 phylogenetic networks on the basis of data generated by Markov processes

Elizabeth Gross, Leo van Iersel, Remie Janssen, Mark Jones, Colby Long, Yukihiro Murakami

摘要:

系统发生网络可以代表系统发育树无法描述的进化事件。这些网络能够纳入网状进化事件,如杂交,基因渗入和横向基因转移。最近,基于网络的DNA序列进化的马尔可夫模型已经被引入,以及基于模型的方法重建系统发育网络。为了使这些方法保持一致,网络参数需要从模型下生成的数据中识别出来。在这里,我们表明,半有向网络参数的三角形,1级网络模型与任何固定数量的网状顶点是一般可识别的Jukes-Cantor下,木村2参数,或木村3参数的约束。

英文摘要:

Phylogenetic networks can represent evolutionary events that cannot be described by phylogenetic trees. These networks are able to incorporate reticulate evolutionary events such as hybridization, introgression, and lateral gene transfer. Recently, network-based Markov models of DNA sequence evolution have been introduced along with model-based methods for reconstructing phylogenetic networks. For these methods to be consistent, the network parameter needs to be identifiable from data generated under the model. Here, we show that the semi-directed network parameter of a triangle-free, level-1 network model with any fixed number of reticulation vertices is generically identifiable under the Jukes-Cantor, Kimura 2-parameter, or Kimura 3-parameter constraints.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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