Two new graphical methods for mapping trait evolution on phylogenies

Modern phylogenetic comparative biology uses data from the relationships between species (phylogeny) combined with comparative information for phenotypic traits to draw model?based statistical inferences about the evolutionary past. Recent years have seen phylogeny methods for evolutionary inference...

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Autor Principal: Revell, Liam James
Formato: Artículo (Article)
Lenguaje:Inglés (English)
Publicado: British Ecological Society 2013
Materias:
Acceso en línea:https://repository.urosario.edu.co/handle/10336/27141
https://doi.org/10.1111/2041-210X.12066
id ir-10336-27141
recordtype dspace
spelling ir-10336-271412020-08-19T14:41:07Z Two new graphical methods for mapping trait evolution on phylogenies Dos nuevos métodos gráficos para cartografiar la evolución de los rasgos en filogenias Revell, Liam James Ancestral states Comparative method Interspecific data Stochastic character mapping Traitgram Modern phylogenetic comparative biology uses data from the relationships between species (phylogeny) combined with comparative information for phenotypic traits to draw model?based statistical inferences about the evolutionary past. Recent years have seen phylogeny methods for evolutionary inference become central in the study of organic evolution. Here, I present two different graphical methods for visualizing phenotypic evolution on the tree. Method 1 is a new approach for plotting the posterior density of stochastically mapped character histories for a binary (two?state) phenotypic trait on a phylogeny. Method 2 is a closely related technique that uses ancestral character estimation to visualize historical character states for a continuous trait along the branches of a tree. One shortcoming of Method 2 is that by mapping the point estimates of ancestral states along the branches of the tree, we have effectively ignored the uncertainty associated with ancestral character estimation of continuous traits. To alleviate this issue, I propose a new method for visualizing ancestral state uncertainty using a type of projection of the tree into morphospace called a ‘traitgram.’ All of these approaches should prove useful in summarizing complex comparative inferences about ancestral character reconstruction. They are implemented in the freely available and open?source R phylogenetics package ‘phytools.’ 2013-04-30 2020-08-19T14:41:07Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion EISSN: 2041-210X https://repository.urosario.edu.co/handle/10336/27141 https://doi.org/10.1111/2041-210X.12066 eng info:eu-repo/semantics/openAccess application/pdf British Ecological Society Methods in Ecology and Evolution
institution EdocUR - Universidad del Rosario
collection DSpace
language Inglés (English)
topic Ancestral states
Comparative method
Interspecific data
Stochastic character mapping
Traitgram
spellingShingle Ancestral states
Comparative method
Interspecific data
Stochastic character mapping
Traitgram
Revell, Liam James
Two new graphical methods for mapping trait evolution on phylogenies
description Modern phylogenetic comparative biology uses data from the relationships between species (phylogeny) combined with comparative information for phenotypic traits to draw model?based statistical inferences about the evolutionary past. Recent years have seen phylogeny methods for evolutionary inference become central in the study of organic evolution. Here, I present two different graphical methods for visualizing phenotypic evolution on the tree. Method 1 is a new approach for plotting the posterior density of stochastically mapped character histories for a binary (two?state) phenotypic trait on a phylogeny. Method 2 is a closely related technique that uses ancestral character estimation to visualize historical character states for a continuous trait along the branches of a tree. One shortcoming of Method 2 is that by mapping the point estimates of ancestral states along the branches of the tree, we have effectively ignored the uncertainty associated with ancestral character estimation of continuous traits. To alleviate this issue, I propose a new method for visualizing ancestral state uncertainty using a type of projection of the tree into morphospace called a ‘traitgram.’ All of these approaches should prove useful in summarizing complex comparative inferences about ancestral character reconstruction. They are implemented in the freely available and open?source R phylogenetics package ‘phytools.’
format Artículo (Article)
author Revell, Liam James
author_facet Revell, Liam James
author_sort Revell, Liam James
title Two new graphical methods for mapping trait evolution on phylogenies
title_short Two new graphical methods for mapping trait evolution on phylogenies
title_full Two new graphical methods for mapping trait evolution on phylogenies
title_fullStr Two new graphical methods for mapping trait evolution on phylogenies
title_full_unstemmed Two new graphical methods for mapping trait evolution on phylogenies
title_sort two new graphical methods for mapping trait evolution on phylogenies
publisher British Ecological Society
publishDate 2013
url https://repository.urosario.edu.co/handle/10336/27141
https://doi.org/10.1111/2041-210X.12066
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