Adaptive evolution of the Populus tremula photoperiod pathway.
Identifieur interne : 003006 ( Main/Exploration ); précédent : 003005; suivant : 003007Adaptive evolution of the Populus tremula photoperiod pathway.
Auteurs : David Hall [Suède] ; Xiao-Fei Ma ; P R K. IngvarssonSource :
- Molecular ecology [ 1365-294X ] ; 2011.
Descripteurs français
- KwdFr :
- Adaptation biologique (génétique), Animaux (MeSH), Gènes de plante (MeSH), Génome végétal (MeSH), Horloges circadiennes (génétique), Photopériode (MeSH), Polymorphisme génétique (MeSH), Populus (génétique), Populus (physiologie), Rythme circadien (génétique), Saisons (MeSH), Sélection génétique (MeSH), Évolution biologique (MeSH), Évolution moléculaire (MeSH).
- MESH :
- génétique : Adaptation biologique, Horloges circadiennes, Populus, Rythme circadien.
- physiologie : Populus.
- Animaux, Gènes de plante, Génome végétal, Photopériode, Polymorphisme génétique, Saisons, Sélection génétique, Évolution biologique, Évolution moléculaire.
English descriptors
- KwdEn :
- Adaptation, Biological (genetics), Animals (MeSH), Biological Evolution (MeSH), Circadian Clocks (genetics), Circadian Rhythm (genetics), Evolution, Molecular (MeSH), Genes, Plant (MeSH), Genome, Plant (MeSH), Photoperiod (MeSH), Polymorphism, Genetic (MeSH), Populus (genetics), Populus (physiology), Seasons (MeSH), Selection, Genetic (MeSH).
- MESH :
- genetics : Adaptation, Biological, Circadian Clocks, Circadian Rhythm, Populus.
- physiology : Populus.
- Animals, Biological Evolution, Evolution, Molecular, Genes, Plant, Genome, Plant, Photoperiod, Polymorphism, Genetic, Seasons, Selection, Genetic.
Abstract
Perennial plants monitor seasonal changes through changes in environmental conditions such as the quantity and quality of light and genes in the photoperiodic pathway are known to be involved in controlling these processes. Here, we examine 25 of genes from the photoperiod pathway in Populus tremula (Salicaceae) for signatures of adaptive evolution. Overall, levels of synonymous polymorphism in the 25 genes are lower than at control loci selected randomly from the genome. This appears primarily to be caused by lower levels of synonymous polymorphism in genes associated with the circadian clock. Natural selection appears to play an important role in shaping protein evolution at several of the genes in the photoperiod pathways, which is highlighted by the fact that approximately 40% of the genes from the photoperiod pathway have estimates of selection on nonsynonymous polymorphisms that are significantly different from zero. A surprising observation we make is that circadian clock-associated genes appear to be over-represented among the genes showing elevated rates of protein evolution; seven genes are evolving under positive selection and all but one of these genes are involved in the circadian clock of Populus.
DOI: 10.1111/j.1365-294X.2011.05014.x
PubMed: 21309875
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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Here, we examine 25 of genes from the photoperiod pathway in Populus tremula (Salicaceae) for signatures of adaptive evolution. Overall, levels of synonymous polymorphism in the 25 genes are lower than at control loci selected randomly from the genome. This appears primarily to be caused by lower levels of synonymous polymorphism in genes associated with the circadian clock. Natural selection appears to play an important role in shaping protein evolution at several of the genes in the photoperiod pathways, which is highlighted by the fact that approximately 40% of the genes from the photoperiod pathway have estimates of selection on nonsynonymous polymorphisms that are significantly different from zero. A surprising observation we make is that circadian clock-associated genes appear to be over-represented among the genes showing elevated rates of protein evolution; seven genes are evolving under positive selection and all but one of these genes are involved in the circadian clock of Populus.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">21309875</PMID><DateCompleted><Year>2011</Year><Month>07</Month><Day>01</Day></DateCompleted><DateRevised><Year>2011</Year><Month>03</Month><Day>23</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1365-294X</ISSN><JournalIssue CitedMedium="Internet"><Volume>20</Volume><Issue>7</Issue><PubDate><Year>2011</Year><Month>Apr</Month></PubDate></JournalIssue><Title>Molecular ecology</Title><ISOAbbreviation>Mol Ecol</ISOAbbreviation></Journal><ArticleTitle>Adaptive evolution of the Populus tremula photoperiod pathway.</ArticleTitle><Pagination><MedlinePgn>1463-74</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/j.1365-294X.2011.05014.x</ELocationID><Abstract><AbstractText>Perennial plants monitor seasonal changes through changes in environmental conditions such as the quantity and quality of light and genes in the photoperiodic pathway are known to be involved in controlling these processes. Here, we examine 25 of genes from the photoperiod pathway in Populus tremula (Salicaceae) for signatures of adaptive evolution. Overall, levels of synonymous polymorphism in the 25 genes are lower than at control loci selected randomly from the genome. This appears primarily to be caused by lower levels of synonymous polymorphism in genes associated with the circadian clock. Natural selection appears to play an important role in shaping protein evolution at several of the genes in the photoperiod pathways, which is highlighted by the fact that approximately 40% of the genes from the photoperiod pathway have estimates of selection on nonsynonymous polymorphisms that are significantly different from zero. A surprising observation we make is that circadian clock-associated genes appear to be over-represented among the genes showing elevated rates of protein evolution; seven genes are evolving under positive selection and all but one of these genes are involved in the circadian clock of Populus.</AbstractText><CopyrightInformation>© 2011 Blackwell Publishing Ltd.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Hall</LastName><ForeName>David</ForeName><Initials>D</Initials><AffiliationInfo><Affiliation>Umeå Plant Science Centre, Department of Ecology and Environmental Science, Umeå University, Umeå, Sweden.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Ma</LastName><ForeName>Xiao-Fei</ForeName><Initials>XF</Initials></Author><Author ValidYN="Y"><LastName>Ingvarsson</LastName><ForeName>Pär K</ForeName><Initials>PK</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2011</Year><Month>02</Month><Day>11</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Mol Ecol</MedlineTA><NlmUniqueID>9214478</NlmUniqueID><ISSNLinking>0962-1083</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000220" MajorTopicYN="N">Adaptation, Biological</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D000818" MajorTopicYN="N">Animals</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005075" MajorTopicYN="Y">Biological Evolution</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D057906" MajorTopicYN="N">Circadian Clocks</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002940" MajorTopicYN="N">Circadian Rhythm</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D019143" MajorTopicYN="N">Evolution, Molecular</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D017343" MajorTopicYN="N">Genes, Plant</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018745" MajorTopicYN="N">Genome, Plant</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D017440" MajorTopicYN="Y">Photoperiod</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D011110" MajorTopicYN="N">Polymorphism, Genetic</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012621" MajorTopicYN="N">Seasons</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012641" MajorTopicYN="N">Selection, Genetic</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2011</Year><Month>2</Month><Day>12</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2011</Year><Month>2</Month><Day>12</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2011</Year><Month>7</Month><Day>2</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">21309875</ArticleId><ArticleId IdType="doi">10.1111/j.1365-294X.2011.05014.x</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Suède</li></country></list><tree><noCountry><name sortKey="Ingvarsson, P R K" sort="Ingvarsson, P R K" uniqKey="Ingvarsson P" first="P R K" last="Ingvarsson">P R K. Ingvarsson</name><name sortKey="Ma, Xiao Fei" sort="Ma, Xiao Fei" uniqKey="Ma X" first="Xiao-Fei" last="Ma">Xiao-Fei Ma</name></noCountry><country name="Suède"><noRegion><name sortKey="Hall, David" sort="Hall, David" uniqKey="Hall D" first="David" last="Hall">David Hall</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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