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arXiv 1703.04734q-bio.PE
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论离散系统发育性状的信息量

On the information content of discrete phylogenetic characters

Magnus Bordewich, Ina Maria Deutschmann, Mareike Fischer, Elisa Kasbohm, Charles Semple, Mike Steel

摘要:

系统发育推断的目的是根据遗传(或其他)数据重建不同物种的进化关系。离散字符是一种特殊类型的数据,其中包含有关如何将物种分组在一起的信息。然而,人们早就知道有些字符比其他字符包含更多的信息。例如,一个将相同的状态分配给每个物种的字符将所有物种分组在一起,因此无法洞察所考虑的物种之间的关系。在另一个极端,为每个物种分配不同状态的字符也没有传递系统发育信号。在这份手稿中,我们研究了一个自然的组合措施的信息内容的一个单独的字符和分析特性,提供最大的系统发育信息,特别是,国家的数量,这样一个字符使用和如何不同的国家必须分布在物种或类群的系统发育树。

英文摘要:

Phylogenetic inference aims to reconstruct the evolutionary relationships of different species based on genetic (or other) data. Discrete characters are a particular type of data, which contain information on how the species should be grouped together. However, it has long been known that some characters contain more information than others. For instance, a character that assigns the same state to each species groups all of them together and so provides no insight into the relationships of the species considered. At the other extreme, a character that assigns a different state to each species also conveys no phylogenetic signal. In this manuscript, we study a natural combinatorial measure of the information content of an individual character and analyse properties of characters that provide the maximum phylogenetic information, particularly, the number of states such a character uses and how the different states have to be distributed among the species or taxa of the phylogenetic tree.

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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