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On the information content of discrete phylogenetic characters.

Bordewich, Magnus and Deutschmann, Ina Maria and Fischer, Mareike and Kasbohm, Elisa and Semple, Charles and Steel, Mike (2018) 'On the information content of discrete phylogenetic characters.', Journal of mathematical biology., 77 (3). pp. 527-544.

Abstract

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.

Item Type:Article
Full text:(AM) Accepted Manuscript
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Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1007/s00285-017-1198-2
Publisher statement:The final publication is available at Springer via https://doi.org/10.1007/s00285-017-1198-2
Date accepted:06 December 2017
Date deposited:28 February 2018
Date of first online publication:16 December 2017
Date first made open access:16 December 2018

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