Aging in a long-lived clonal tree.
Identifieur interne : 003384 ( Main/Exploration ); précédent : 003383; suivant : 003385Aging in a long-lived clonal tree.
Auteurs : Dilara Ally [États-Unis] ; Kermit Ritland ; Sarah P. OttoSource :
- PLoS biology [ 1545-7885 ] ; 2010.
Descripteurs français
- KwdFr :
- MESH :
- croissance et développement : Arbres, Populus.
- génétique : Arbres, Populus, Reproduction.
- physiologie : Reproduction.
- Clones cellulaires, Colombie-Britannique, Facteurs temps, Mutation.
English descriptors
- KwdEn :
- MESH :
- geographic : British Columbia.
- genetics : Populus, Reproduction, Trees.
- growth & development : Populus, Trees.
- physiology : Reproduction.
- Clone Cells, Mutation, Time Factors.
Abstract
From bacteria to multicellular animals, most organisms exhibit declines in survivorship or reproductive performance with increasing age ("senescence"). Evidence for senescence in clonal plants, however, is scant. During asexual growth, we expect that somatic mutations, which negatively impact sexual fitness, should accumulate and contribute to senescence, especially among long-lived clonal plants. We tested whether older clones of Populus tremuloides (trembling aspen) from natural stands in British Columbia exhibited significantly reduced reproductive performance. Coupling molecular-based estimates of clone age with male fertility data, we observed a significant decline in the average number of viable pollen grains per catkin per ramet with increasing clone age in trembling aspen. We found that mutations reduced relative male fertility in clonal aspen populations by about 5.8 x 10(-5) to 1.6 x 10(-3) per year, leading to an 8% reduction in the number of viable pollen grains, on average, among the clones studied. The probability that an aspen lineage ultimately goes extinct rises as its male sexual fitness declines, suggesting that even long-lived clonal organisms are vulnerable to senescence.
DOI: 10.1371/journal.pbio.1000454
PubMed: 20808953
PubMed Central: PMC2923084
Affiliations:
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Otto</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2010">2010</date><idno type="RBID">pubmed:20808953</idno><idno type="pmid">20808953</idno><idno type="doi">10.1371/journal.pbio.1000454</idno><idno type="pmc">PMC2923084</idno><idno type="wicri:Area/Main/Corpus">003079</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">003079</idno><idno type="wicri:Area/Main/Curation">003079</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">003079</idno><idno type="wicri:Area/Main/Exploration">003079</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Aging in a long-lived clonal tree.</title><author><name sortKey="Ally, Dilara" sort="Ally, Dilara" uniqKey="Ally D" first="Dilara" last="Ally">Dilara Ally</name><affiliation wicri:level="2"><nlm:affiliation>Department of Biological Sciences, University of Idaho, Moscow, Idaho, United States of America. dilara.ally@gmail.com</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Biological Sciences, University of Idaho, Moscow, Idaho</wicri:regionArea><placeName><region type="state">Idaho</region></placeName></affiliation></author><author><name sortKey="Ritland, Kermit" sort="Ritland, Kermit" uniqKey="Ritland K" first="Kermit" last="Ritland">Kermit Ritland</name></author><author><name sortKey="Otto, Sarah P" sort="Otto, Sarah P" uniqKey="Otto S" first="Sarah P" last="Otto">Sarah P. Otto</name></author></analytic><series><title level="j">PLoS biology</title><idno type="eISSN">1545-7885</idno><imprint><date when="2010" type="published">2010</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>British Columbia (MeSH)</term><term>Clone Cells (MeSH)</term><term>Mutation (MeSH)</term><term>Populus (genetics)</term><term>Populus (growth & development)</term><term>Reproduction (genetics)</term><term>Reproduction (physiology)</term><term>Time Factors (MeSH)</term><term>Trees (genetics)</term><term>Trees (growth & development)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Arbres (croissance et développement)</term><term>Arbres (génétique)</term><term>Clones cellulaires (MeSH)</term><term>Colombie-Britannique (MeSH)</term><term>Facteurs temps (MeSH)</term><term>Mutation (MeSH)</term><term>Populus (croissance et développement)</term><term>Populus (génétique)</term><term>Reproduction (génétique)</term><term>Reproduction (physiologie)</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>British Columbia</term></keywords><keywords scheme="MESH" qualifier="croissance et développement" xml:lang="fr"><term>Arbres</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Populus</term><term>Reproduction</term><term>Trees</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Populus</term><term>Trees</term></keywords><keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>Arbres</term><term>Populus</term><term>Reproduction</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Reproduction</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Reproduction</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Clone Cells</term><term>Mutation</term><term>Time Factors</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Clones cellulaires</term><term>Colombie-Britannique</term><term>Facteurs temps</term><term>Mutation</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">From bacteria to multicellular animals, most organisms exhibit declines in survivorship or reproductive performance with increasing age ("senescence"). Evidence for senescence in clonal plants, however, is scant. During asexual growth, we expect that somatic mutations, which negatively impact sexual fitness, should accumulate and contribute to senescence, especially among long-lived clonal plants. We tested whether older clones of Populus tremuloides (trembling aspen) from natural stands in British Columbia exhibited significantly reduced reproductive performance. Coupling molecular-based estimates of clone age with male fertility data, we observed a significant decline in the average number of viable pollen grains per catkin per ramet with increasing clone age in trembling aspen. We found that mutations reduced relative male fertility in clonal aspen populations by about 5.8 x 10(-5) to 1.6 x 10(-3) per year, leading to an 8% reduction in the number of viable pollen grains, on average, among the clones studied. The probability that an aspen lineage ultimately goes extinct rises as its male sexual fitness declines, suggesting that even long-lived clonal organisms are vulnerable to senescence.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">20808953</PMID><DateCompleted><Year>2010</Year><Month>12</Month><Day>13</Day></DateCompleted><DateRevised><Year>2019</Year><Month>01</Month><Day>15</Day></DateRevised><Article PubModel="Electronic"><Journal><ISSN IssnType="Electronic">1545-7885</ISSN><JournalIssue CitedMedium="Internet"><Volume>8</Volume><Issue>8</Issue><PubDate><Year>2010</Year><Month>Aug</Month><Day>17</Day></PubDate></JournalIssue><Title>PLoS biology</Title><ISOAbbreviation>PLoS Biol</ISOAbbreviation></Journal><ArticleTitle>Aging in a long-lived clonal tree.</ArticleTitle><ELocationID EIdType="doi" ValidYN="Y">10.1371/journal.pbio.1000454</ELocationID><ELocationID EIdType="pii" ValidYN="Y">e1000454</ELocationID><Abstract><AbstractText>From bacteria to multicellular animals, most organisms exhibit declines in survivorship or reproductive performance with increasing age ("senescence"). Evidence for senescence in clonal plants, however, is scant. During asexual growth, we expect that somatic mutations, which negatively impact sexual fitness, should accumulate and contribute to senescence, especially among long-lived clonal plants. We tested whether older clones of Populus tremuloides (trembling aspen) from natural stands in British Columbia exhibited significantly reduced reproductive performance. Coupling molecular-based estimates of clone age with male fertility data, we observed a significant decline in the average number of viable pollen grains per catkin per ramet with increasing clone age in trembling aspen. We found that mutations reduced relative male fertility in clonal aspen populations by about 5.8 x 10(-5) to 1.6 x 10(-3) per year, leading to an 8% reduction in the number of viable pollen grains, on average, among the clones studied. The probability that an aspen lineage ultimately goes extinct rises as its male sexual fitness declines, suggesting that even long-lived clonal organisms are vulnerable to senescence.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Ally</LastName><ForeName>Dilara</ForeName><Initials>D</Initials><AffiliationInfo><Affiliation>Department of Biological Sciences, University of Idaho, Moscow, Idaho, United States of America. dilara.ally@gmail.com</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Ritland</LastName><ForeName>Kermit</ForeName><Initials>K</Initials></Author><Author ValidYN="Y"><LastName>Otto</LastName><ForeName>Sarah P</ForeName><Initials>SP</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>2010</Year><Month>08</Month><Day>17</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>PLoS Biol</MedlineTA><NlmUniqueID>101183755</NlmUniqueID><ISSNLinking>1544-9173</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><CommentsCorrectionsList><CommentsCorrections RefType="CommentIn"><RefSource>PLoS Biol. 2010;8(8). pii: e1000455. doi: 10.1371/journal.pbio.1000455</RefSource><PMID Version="1">20808954</PMID></CommentsCorrections></CommentsCorrectionsList><MeshHeadingList><MeshHeading><DescriptorName UI="D001955" MajorTopicYN="N" Type="Geographic">British Columbia</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D002999" MajorTopicYN="N">Clone Cells</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D009154" MajorTopicYN="N">Mutation</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012098" MajorTopicYN="N">Reproduction</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013997" MajorTopicYN="N">Time Factors</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014197" MajorTopicYN="N">Trees</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName></MeshHeading></MeshHeadingList><CoiStatement>The authors have declared that no competing interests exist.</CoiStatement></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2010</Year><Month>01</Month><Day>18</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2010</Year><Month>07</Month><Day>02</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2010</Year><Month>9</Month><Day>3</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2010</Year><Month>9</Month><Day>3</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2010</Year><Month>12</Month><Day>14</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>epublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">20808953</ArticleId><ArticleId IdType="doi">10.1371/journal.pbio.1000454</ArticleId><ArticleId IdType="pmc">PMC2923084</ArticleId></ArticleIdList><ReferenceList><Reference><Citation>Proc Natl Acad Sci U S A. 1999 Sep 28;96(20):11393-8</Citation><ArticleIdList><ArticleId IdType="pubmed">10500187</ArticleId></ArticleIdList></Reference><Reference><Citation>Genetics. 1999 Dec;153(4):1885-98</Citation><ArticleIdList><ArticleId 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Otto</name><name sortKey="Ritland, Kermit" sort="Ritland, Kermit" uniqKey="Ritland K" first="Kermit" last="Ritland">Kermit Ritland</name></noCountry><country name="États-Unis"><region name="Idaho"><name sortKey="Ally, Dilara" sort="Ally, Dilara" uniqKey="Ally D" first="Dilara" last="Ally">Dilara Ally</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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