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ClipKIT: A multiple sequence alignment trimming software for accurate phylogenomic inference

Open access
Steenwyk, Jacob L., Buida, Thomas J., Li, Yuanning, Shen, Xing-Xing, Rokas, Antonis·2020·PLOS Biology

Abstract

Highly divergent sites in multiple sequence alignments (MSAs), which can stem from erroneous inference of homology and saturation of substitutions, are thought to negatively impact phylogenetic inference. Thus, several different trimming strategies have been developed for identifying and removing these sites prior to phylogenetic inference. However, a recent study reported that doing so can worsen inference, underscoring the need for alternative alignment trimming strategies. Here, we introduce ClipKIT, an alignment trimming software that, rather than identifying and removing putatively phylogenetically uninformative sites, instead aims to identify and retain parsimony-informative sites, which are known to be phylogenetically informative. To test the efficacy of ClipKIT, we examined the accuracy and support of phylogenies inferred from 14 different alignment trimming strategies, including those implemented in ClipKIT, across nearly 140,000 alignments from a broad sampling of evolutionary histories. Phylogenies inferred from ClipKIT-trimmed alignments are accurate, robust, and time saving. Furthermore, ClipKIT consistently outperformed other trimming methods across diverse datasets, suggesting that strategies based on identifying and retaining parsimony-informative sites provide a robust framework for alignment trimming.

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Metadata

Authors
Steenwyk, J. L., Buida, T. J., Li, Y., Shen, X.-X., & Rokas, A.
Venue
PLOS Biology
Published
2020-12-02
Volume
18
Issue
12
Pages
e3001007
ISSN
  • 1544-9173 (ISSN-L)
  • 1545-7885
OpenAlex
W3107541694
Cited by
698
References
7
FWCI
14.04
Type
journal article
Language
en
Open access
gold

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