@ARTICLE{TreeBASE2Ref19615,
author = {Bastien Boussau and Jeremy M. Brown and Matthew K. Fujita},
title = {Nonadaptive Evolution of Mitochondrial Genome Size},
year = {2011},
keywords = {mitochondria; genome evolution; dn/ds; mantellid frogs; parthenogenetic lizards; duplication},
doi = {10.1111/j.1558-5646.2011.01322.x},
url = {http://},
pmid = {},
journal = {Evolution},
volume = {},
number = {},
pages = {},
abstract = {Genomes vary greatly in size and complexity, and identifying the evolutionary forces that have generated this variation remains a major goal in biology. A controversial proposal is that most changes in genome size are initially deleterious and therefore are linked to episodes of decrease in effective population sizes. Support for this hypothesis comes from large-scale comparative analyses, but vanishes when phylogenetic nonindependence is taken into account. Another approach to test this hypothesis involves analyzing sequence evolution among clades where duplications have recently fixed. Here we show that episodes of fixation of duplications in mitochondrial genomes of the gecko Heteronotia binoei (2 independent clades) and of mantellid frogs (5 distinct branches) coincide with reductions in the ability of selection to purge slightly deleterious mutations. Our results support the idea that genome complexity can arise through nonadaptive processes in tetrapods.}
}
Citation for Study 11392
Citation title:
"Nonadaptive Evolution of Mitochondrial Genome Size".
Study name:
"Nonadaptive Evolution of Mitochondrial Genome Size".
This study is part of submission 11382
(Status: Published).
Citation
Boussau B., Brown J.M., & Fujita M.K. 2011. Nonadaptive Evolution of Mitochondrial Genome Size. Evolution, .
Authors
-
Boussau B.
(submitter)
5102207162
-
Brown J.M.
-
Fujita M.K.
Abstract
Genomes vary greatly in size and complexity, and identifying the evolutionary forces that have generated this variation remains a major goal in biology. A controversial proposal is that most changes in genome size are initially deleterious and therefore are linked to episodes of decrease in effective population sizes. Support for this hypothesis comes from large-scale comparative analyses, but vanishes when phylogenetic nonindependence is taken into account. Another approach to test this hypothesis involves analyzing sequence evolution among clades where duplications have recently fixed. Here we show that episodes of fixation of duplications in mitochondrial genomes of the gecko Heteronotia binoei (2 independent clades) and of mantellid frogs (5 distinct branches) coincide with reductions in the ability of selection to purge slightly deleterious mutations. Our results support the idea that genome complexity can arise through nonadaptive processes in tetrapods.
Keywords
mitochondria; genome evolution; dn/ds; mantellid frogs; parthenogenetic lizards; duplication
External links
About this resource
- Canonical resource URI:
http://purl.org/phylo/treebase/phylows/study/TB2:S11392
- Other versions:
Nexus
NeXML
- Show BibTeX reference
@ARTICLE{TreeBASE2Ref19615,
author = {Bastien Boussau and Jeremy M. Brown and Matthew K. Fujita},
title = {Nonadaptive Evolution of Mitochondrial Genome Size},
year = {2011},
keywords = {mitochondria; genome evolution; dn/ds; mantellid frogs; parthenogenetic lizards; duplication},
doi = {10.1111/j.1558-5646.2011.01322.x},
url = {http://},
pmid = {},
journal = {Evolution},
volume = {},
number = {},
pages = {},
abstract = {Genomes vary greatly in size and complexity, and identifying the evolutionary forces that have generated this variation remains a major goal in biology. A controversial proposal is that most changes in genome size are initially deleterious and therefore are linked to episodes of decrease in effective population sizes. Support for this hypothesis comes from large-scale comparative analyses, but vanishes when phylogenetic nonindependence is taken into account. Another approach to test this hypothesis involves analyzing sequence evolution among clades where duplications have recently fixed. Here we show that episodes of fixation of duplications in mitochondrial genomes of the gecko Heteronotia binoei (2 independent clades) and of mantellid frogs (5 distinct branches) coincide with reductions in the ability of selection to purge slightly deleterious mutations. Our results support the idea that genome complexity can arise through nonadaptive processes in tetrapods.}
}
- Show RIS reference
TY - JOUR
ID - 19615
AU - Boussau,Bastien
AU - Brown,Jeremy M.
AU - Fujita,Matthew K.
T1 - Nonadaptive Evolution of Mitochondrial Genome Size
PY - 2011
KW - mitochondria; genome evolution; dn/ds; mantellid frogs; parthenogenetic lizards; duplication
UR - http://dx.doi.org/10.1111/j.1558-5646.2011.01322.x
N2 - Genomes vary greatly in size and complexity, and identifying the evolutionary forces that have generated this variation remains a major goal in biology. A controversial proposal is that most changes in genome size are initially deleterious and therefore are linked to episodes of decrease in effective population sizes. Support for this hypothesis comes from large-scale comparative analyses, but vanishes when phylogenetic nonindependence is taken into account. Another approach to test this hypothesis involves analyzing sequence evolution among clades where duplications have recently fixed. Here we show that episodes of fixation of duplications in mitochondrial genomes of the gecko Heteronotia binoei (2 independent clades) and of mantellid frogs (5 distinct branches) coincide with reductions in the ability of selection to purge slightly deleterious mutations. Our results support the idea that genome complexity can arise through nonadaptive processes in tetrapods.
L3 - 10.1111/j.1558-5646.2011.01322.x
JF - Evolution
VL -
IS -
ER -
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