Abstract:
:Determining the rate of protein evolution and identifying the causes of its variation across the genome are powerful ways to understand forces that are important for genome evolution. By using a multitissue transcriptome data set from great tit (Parus major), we analyzed patterns of molecular evolution between two passerine birds, great tit and zebra finch (Taeniopygia guttata), using the chicken genome (Gallus gallus) as an outgroup. We investigated whether a special feature of avian genomes, the highly variable recombinational landscape, modulates the efficacy of natural selection through the effects of Hill-Robertson interference, which predicts that selection should be more effective in removing deleterious mutations and incorporating beneficial mutations in high-recombination regions than in low-recombination regions. In agreement with these predictions, genes located in low-recombination regions tend to have a high proportion of neutrally evolving sites and relaxed selective constraint on sites subject to purifying selection, whereas genes that show strong support for past episodes of positive selection appear disproportionally in high-recombination regions. There is also evidence that genes located in high-recombination regions tend to have higher gene expression specificity than those located in low-recombination regions. Furthermore, more compact genes (i.e., those with fewer/shorter introns or shorter proteins) evolve faster than less compact ones. In sum, our results demonstrate that transcriptome sequencing is a powerful method to answer fundamental questions about genome evolution in nonmodel organisms.
journal_name
Genome Biol Evoljournal_title
Genome biology and evolutionauthors
Gossmann TI,Santure AW,Sheldon BC,Slate J,Zeng Kdoi
10.1093/gbe/evu157subject
Has Abstractpub_date
2014-08-01 00:00:00pages
2061-75issue
8issn
1759-6653pii
evu157journal_volume
6pub_type
杂志文章abstract::Whole-genome duplications are radical evolutionary events that have driven speciation and adaptation in many taxa. Higher-order polyploids have complex histories often including interspecific hybridization and dynamic genomic changes. This chromosomal reshuffling is poorly understood for most polyploid species, despit...
journal_title:Genome biology and evolution
pub_type: 杂志文章
doi:10.1093/gbe/evu261
更新日期:2014-12-04 00:00:00
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journal_title:Genome biology and evolution
pub_type: 杂志文章
doi:10.1093/gbe/evw017
更新日期:2016-03-02 00:00:00
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journal_title:Genome biology and evolution
pub_type: 杂志文章
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更新日期:2020-05-01 00:00:00
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journal_title:Genome biology and evolution
pub_type: 杂志文章
doi:10.1093/gbe/evt211
更新日期:2014-01-01 00:00:00
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journal_title:Genome biology and evolution
pub_type: 杂志文章
doi:10.1093/gbe/evy172
更新日期:2018-08-01 00:00:00
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journal_title:Genome biology and evolution
pub_type: 杂志文章
doi:10.1093/gbe/evu195
更新日期:2014-09-04 00:00:00
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journal_title:Genome biology and evolution
pub_type: 杂志文章
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更新日期:2019-06-01 00:00:00
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journal_title:Genome biology and evolution
pub_type: 信件
doi:10.1093/gbe/evw250
更新日期:2016-12-31 00:00:00
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journal_title:Genome biology and evolution
pub_type: 杂志文章
doi:10.1093/gbe/evz054
更新日期:2019-03-01 00:00:00
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journal_title:Genome biology and evolution
pub_type: 杂志文章
doi:10.1093/gbe/evt178
更新日期:2013-01-01 00:00:00
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journal_title:Genome biology and evolution
pub_type: 杂志文章
doi:10.1093/gbe/evy183
更新日期:2018-10-01 00:00:00
abstract::Orphan genes are defined as genes that lack detectable similarity to genes in other species and therefore no clear signals of common descent (i.e., homology) can be inferred. Orphans are an enigmatic portion of the genome because their origin and function are mostly unknown and they typically make up 10% to 30% of all...
journal_title:Genome biology and evolution
pub_type: 杂志文章
doi:10.1093/gbe/evt009
更新日期:2013-01-01 00:00:00
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journal_title:Genome biology and evolution
pub_type: 杂志文章
doi:10.1093/gbe/evv126
更新日期:2015-07-01 00:00:00
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journal_title:Genome biology and evolution
pub_type: 杂志文章
doi:10.1093/gbe/evw125
更新日期:2016-07-02 00:00:00
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journal_title:Genome biology and evolution
pub_type: 杂志文章
doi:10.1093/gbe/evv116
更新日期:2015-06-24 00:00:00
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journal_title:Genome biology and evolution
pub_type: 杂志文章
doi:10.1093/gbe/evy048
更新日期:2018-03-01 00:00:00
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journal_title:Genome biology and evolution
pub_type: 杂志文章
doi:10.1093/gbe/evaa207
更新日期:2020-12-06 00:00:00
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journal_title:Genome biology and evolution
pub_type: 杂志文章
doi:10.1093/gbe/evp030
更新日期:2009-08-13 00:00:00
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journal_title:Genome biology and evolution
pub_type: 杂志文章
doi:10.1093/gbe/evv108
更新日期:2015-05-28 00:00:00
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journal_title:Genome biology and evolution
pub_type: 杂志文章
doi:10.1093/gbe/evaa267
更新日期:2021-01-29 00:00:00
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journal_title:Genome biology and evolution
pub_type: 杂志文章
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更新日期:2018-11-01 00:00:00
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journal_title:Genome biology and evolution
pub_type: 杂志文章
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更新日期:2013-01-01 00:00:00
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journal_title:Genome biology and evolution
pub_type: 信件
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更新日期:2019-02-01 00:00:00
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journal_title:Genome biology and evolution
pub_type: 杂志文章
doi:10.1093/gbe/evv128
更新日期:2015-07-02 00:00:00
abstract::Bacteria of the Planctomycetes phylum have many unique cellular features, such as extensive membrane invaginations and the ability to import macromolecules. These features raise intriguing questions about the composition of their cell envelopes. In this study, we have used microscopy, phylogenomics, and proteomics to ...
journal_title:Genome biology and evolution
pub_type: 杂志文章
doi:10.1093/gbe/evaa159
更新日期:2020-09-01 00:00:00
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journal_title:Genome biology and evolution
pub_type: 杂志文章
doi:10.1093/gbe/evr036
更新日期:2011-01-01 00:00:00
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journal_title:Genome biology and evolution
pub_type: 杂志文章
doi:10.1093/gbe/evu063
更新日期:2014-05-01 00:00:00
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journal_title:Genome biology and evolution
pub_type: 杂志文章
doi:10.1093/gbe/evx085
更新日期:2017-05-01 00:00:00
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journal_title:Genome biology and evolution
pub_type: 杂志文章
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更新日期:2019-01-01 00:00:00
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journal_title:Genome biology and evolution
pub_type: 杂志文章
doi:10.1093/gbe/evs033
更新日期:2012-01-01 00:00:00