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POSITIVE CORRELATION BETWEEN DIVERSIFICATION RATES AND PHENOTYPIC EVOLVABILITY CAN MIMIC PUNCTUATED EQUILIBRIUM ON MOLECULAR PHYLOGENIES

The hypothesis of punctuated equilibrium proposes that most phenotypic evolution occurs in rapid bursts associated with speciation events. Several methods have been developed that can infer punctuated equilibrium from molecular phylogenies in the absence of paleontological data. These methods essent... Full description

Journal Title: Evolution 2012, Vol.66 (8), p.2622-2627
Main Author: Rabosky, Daniel L.
Format: Electronic Article Electronic Article
Language: English
Subjects:
Publisher: Malden, USA: Blackwell Publishing Inc
ID: ISSN: 0014-3820
Link: https://www.ncbi.nlm.nih.gov/pubmed/22834758
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title: POSITIVE CORRELATION BETWEEN DIVERSIFICATION RATES AND PHENOTYPIC EVOLVABILITY CAN MIMIC PUNCTUATED EQUILIBRIUM ON MOLECULAR PHYLOGENIES
format: Article
creator:
  • Rabosky, Daniel L.
subjects:
  • Adaptive radiation
  • Analysis
  • Biodiversity
  • Biological Evolution
  • Biological taxonomies
  • BRIEF COMMUNICATION
  • Computational biology
  • Divergent evolution
  • Ecological balance
  • Evolution
  • Evolution & development
  • Evolution, Molecular
  • Genetic equilibrium
  • Genetic Speciation
  • Genotype & phenotype
  • macroevolution
  • Modeling
  • Models, Genetic
  • Molecular structure
  • Molecular systematics
  • Morphological diversity
  • morphological evolution
  • Morphology
  • Origin of species
  • Phenotype
  • Phenotypic traits
  • Phylogenetics
  • Phylogeny
  • Speciation
  • Statistical variance
ispartof: Evolution, 2012, Vol.66 (8), p.2622-2627
description: The hypothesis of punctuated equilibrium proposes that most phenotypic evolution occurs in rapid bursts associated with speciation events. Several methods have been developed that can infer punctuated equilibrium from molecular phylogenies in the absence of paleontological data. These methods essentially test whether the variance in phenotypes among extant species is better explained by evolutionary time since common ancestry or by the number of estimated speciation events separating taxa. However, apparent "punctuational" trait change can be recovered on molecular phylogenies if the rate of phenotypic evolution is correlated with the rate of speciation. Strong support for punctuational models can arise even if the underlying mode of trait evolution is strictly gradual, so long as rates of speciation and trait evolution covary across the branches of phylogenetic trees, and provided that lineages vary in their rate of speciation. Species selection for accelerated rates of ecological or phenotypic divergence can potentially lead to the perception that most trait divergence occurs in association with speciation events.
language: eng
source:
identifier: ISSN: 0014-3820
fulltext: no_fulltext
issn:
  • 0014-3820
  • 1558-5646
url: Link


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titlePOSITIVE CORRELATION BETWEEN DIVERSIFICATION RATES AND PHENOTYPIC EVOLVABILITY CAN MIMIC PUNCTUATED EQUILIBRIUM ON MOLECULAR PHYLOGENIES
creatorRabosky, Daniel L.
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descriptionThe hypothesis of punctuated equilibrium proposes that most phenotypic evolution occurs in rapid bursts associated with speciation events. Several methods have been developed that can infer punctuated equilibrium from molecular phylogenies in the absence of paleontological data. These methods essentially test whether the variance in phenotypes among extant species is better explained by evolutionary time since common ancestry or by the number of estimated speciation events separating taxa. However, apparent "punctuational" trait change can be recovered on molecular phylogenies if the rate of phenotypic evolution is correlated with the rate of speciation. Strong support for punctuational models can arise even if the underlying mode of trait evolution is strictly gradual, so long as rates of speciation and trait evolution covary across the branches of phylogenetic trees, and provided that lineages vary in their rate of speciation. Species selection for accelerated rates of ecological or phenotypic divergence can potentially lead to the perception that most trait divergence occurs in association with speciation events.
editionReceived September 11, 2011 , Accepted February 13, 2012
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subjectAdaptive radiation ; Analysis ; Biodiversity ; Biological Evolution ; Biological taxonomies ; BRIEF COMMUNICATION ; Computational biology ; Divergent evolution ; Ecological balance ; Evolution ; Evolution & development ; Evolution, Molecular ; Genetic equilibrium ; Genetic Speciation ; Genotype & phenotype ; macroevolution ; Modeling ; Models, Genetic ; Molecular structure ; Molecular systematics ; Morphological diversity ; morphological evolution ; Morphology ; Origin of species ; Phenotype ; Phenotypic traits ; Phylogenetics ; Phylogeny ; Speciation ; Statistical variance
ispartofEvolution, 2012, Vol.66 (8), p.2622-2627
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0Copyright © 2012 Society for the Study of Evolution
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0Adaptive radiation
1Analysis
2Biodiversity
3Biological Evolution
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8Ecological balance
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18Molecular structure
19Molecular systematics
20Morphological diversity
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abstractThe hypothesis of punctuated equilibrium proposes that most phenotypic evolution occurs in rapid bursts associated with speciation events. Several methods have been developed that can infer punctuated equilibrium from molecular phylogenies in the absence of paleontological data. These methods essentially test whether the variance in phenotypes among extant species is better explained by evolutionary time since common ancestry or by the number of estimated speciation events separating taxa. However, apparent "punctuational" trait change can be recovered on molecular phylogenies if the rate of phenotypic evolution is correlated with the rate of speciation. Strong support for punctuational models can arise even if the underlying mode of trait evolution is strictly gradual, so long as rates of speciation and trait evolution covary across the branches of phylogenetic trees, and provided that lineages vary in their rate of speciation. Species selection for accelerated rates of ecological or phenotypic divergence can potentially lead to the perception that most trait divergence occurs in association with speciation events.
copMalden, USA
pubBlackwell Publishing Inc
pmid22834758
doi10.1111/j.1558-5646.2012.01631.x
tpages6
editionReceived September 11, 2011 , Accepted February 13, 2012
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