Time Clustered Sampling Can Inflate the Inferred Substitution Rate in Foot-And-Mouth Disease Virus Analyses.

With the emergence of analytical software for the inference of viral evolution, a number of studies have focused on estimating important parameters such as the substitution rate and the time to the most recent common ancestor (tMRCA) for rapidly evolving viruses. Coupled with an increasing abundance...

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Main Authors: Casper-Emil T Pedersen, Peter Frandsen, Sabenzia N Wekesa, Rasmus Heller, Abraham K Sangula, Jemma Wadsworth, Nick J Knowles, Vincent B Muwanika, Hans R Siegismund
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2015-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4667911?pdf=render
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author Casper-Emil T Pedersen
Peter Frandsen
Sabenzia N Wekesa
Rasmus Heller
Abraham K Sangula
Jemma Wadsworth
Nick J Knowles
Vincent B Muwanika
Hans R Siegismund
author_facet Casper-Emil T Pedersen
Peter Frandsen
Sabenzia N Wekesa
Rasmus Heller
Abraham K Sangula
Jemma Wadsworth
Nick J Knowles
Vincent B Muwanika
Hans R Siegismund
author_sort Casper-Emil T Pedersen
collection DOAJ
description With the emergence of analytical software for the inference of viral evolution, a number of studies have focused on estimating important parameters such as the substitution rate and the time to the most recent common ancestor (tMRCA) for rapidly evolving viruses. Coupled with an increasing abundance of sequence data sampled under widely different schemes, an effort to keep results consistent and comparable is needed. This study emphasizes commonly disregarded problems in the inference of evolutionary rates in viral sequence data when sampling is unevenly distributed on a temporal scale through a study of the foot-and-mouth (FMD) disease virus serotypes SAT 1 and SAT 2. Our study shows that clustered temporal sampling in phylogenetic analyses of FMD viruses will strongly bias the inferences of substitution rates and tMRCA because the inferred rates in such data sets reflect a rate closer to the mutation rate rather than the substitution rate. Estimating evolutionary parameters from viral sequences should be performed with due consideration of the differences in short-term and longer-term evolutionary processes occurring within sets of temporally sampled viruses, and studies should carefully consider how samples are combined.
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spelling doaj.art-47d23c9bb9be4cbea6ed59e728691a952022-12-21T23:56:37ZengPublic Library of Science (PLoS)PLoS ONE1932-62032015-01-011012e014360510.1371/journal.pone.0143605Time Clustered Sampling Can Inflate the Inferred Substitution Rate in Foot-And-Mouth Disease Virus Analyses.Casper-Emil T PedersenPeter FrandsenSabenzia N WekesaRasmus HellerAbraham K SangulaJemma WadsworthNick J KnowlesVincent B MuwanikaHans R SiegismundWith the emergence of analytical software for the inference of viral evolution, a number of studies have focused on estimating important parameters such as the substitution rate and the time to the most recent common ancestor (tMRCA) for rapidly evolving viruses. Coupled with an increasing abundance of sequence data sampled under widely different schemes, an effort to keep results consistent and comparable is needed. This study emphasizes commonly disregarded problems in the inference of evolutionary rates in viral sequence data when sampling is unevenly distributed on a temporal scale through a study of the foot-and-mouth (FMD) disease virus serotypes SAT 1 and SAT 2. Our study shows that clustered temporal sampling in phylogenetic analyses of FMD viruses will strongly bias the inferences of substitution rates and tMRCA because the inferred rates in such data sets reflect a rate closer to the mutation rate rather than the substitution rate. Estimating evolutionary parameters from viral sequences should be performed with due consideration of the differences in short-term and longer-term evolutionary processes occurring within sets of temporally sampled viruses, and studies should carefully consider how samples are combined.http://europepmc.org/articles/PMC4667911?pdf=render
spellingShingle Casper-Emil T Pedersen
Peter Frandsen
Sabenzia N Wekesa
Rasmus Heller
Abraham K Sangula
Jemma Wadsworth
Nick J Knowles
Vincent B Muwanika
Hans R Siegismund
Time Clustered Sampling Can Inflate the Inferred Substitution Rate in Foot-And-Mouth Disease Virus Analyses.
PLoS ONE
title Time Clustered Sampling Can Inflate the Inferred Substitution Rate in Foot-And-Mouth Disease Virus Analyses.
title_full Time Clustered Sampling Can Inflate the Inferred Substitution Rate in Foot-And-Mouth Disease Virus Analyses.
title_fullStr Time Clustered Sampling Can Inflate the Inferred Substitution Rate in Foot-And-Mouth Disease Virus Analyses.
title_full_unstemmed Time Clustered Sampling Can Inflate the Inferred Substitution Rate in Foot-And-Mouth Disease Virus Analyses.
title_short Time Clustered Sampling Can Inflate the Inferred Substitution Rate in Foot-And-Mouth Disease Virus Analyses.
title_sort time clustered sampling can inflate the inferred substitution rate in foot and mouth disease virus analyses
url http://europepmc.org/articles/PMC4667911?pdf=render
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