Populus CEN/TFL1 regulates first onset of flowering, axillary meristem identity and dormancy release in Populus.
Identifieur interne : 003277 ( Main/Corpus ); précédent : 003276; suivant : 003278Populus CEN/TFL1 regulates first onset of flowering, axillary meristem identity and dormancy release in Populus.
Auteurs : Rozi Mohamed ; Chieh-Ting Wang ; Cathleen Ma ; Olga Shevchenko ; Sarah J. Dye ; Joshua R. Puzey ; Elizabeth Etherington ; Xiaoyan Sheng ; Richard Meilan ; Steven H. Strauss ; Amy M. BrunnerSource :
- The Plant journal : for cell and molecular biology [ 1365-313X ] ; 2010.
English descriptors
- KwdEn :
- Gene Expression Regulation, Developmental (MeSH), Gene Expression Regulation, Plant (MeSH), Inflorescence (growth & development), Meristem (growth & development), Plant Proteins (genetics), Plant Proteins (metabolism), Plants, Genetically Modified (genetics), Plants, Genetically Modified (growth & development), Plants, Genetically Modified (metabolism), Populus (genetics), Populus (growth & development), Populus (metabolism), RNA Interference (MeSH), RNA, Plant (genetics), Sequence Analysis, DNA (MeSH).
- MESH :
- chemical , genetics : Plant Proteins, RNA, Plant.
- genetics : Plants, Genetically Modified, Populus.
- growth & development : Inflorescence, Meristem, Plants, Genetically Modified, Populus.
- chemical , metabolism : Plant Proteins, Plants, Genetically Modified, Populus.
- Gene Expression Regulation, Developmental, Gene Expression Regulation, Plant, RNA Interference, Sequence Analysis, DNA.
Abstract
Members of the CENTRORADIALIS (CEN)/TERMINAL FLOWER 1 (TFL1) subfamily control shoot meristem identity, and loss-of-function mutations in both monopodial and sympodial herbaceous plants result in dramatic changes in plant architecture. We studied the degree of conservation between herbaceous and woody perennial plants in shoot system regulation by overexpression and RNA interference (RNAi)-mediated suppression of poplar orthologs of CEN, and the related gene MOTHER OF FT AND TFL 1 (MFT). Field study of transgenic poplars (Populus spp.) for over 6 years showed that downregulation of PopCEN1 and its close paralog, PopCEN2, accelerated the onset of mature tree characteristics, including age of first flowering, number of inflorescences and proportion of short shoots. Surprisingly, terminal vegetative meristems remained indeterminate in PopCEN1-RNAi trees, suggesting the possibility that florigen signals are transported to axillary mersitems rather than the shoot apex. However, the axillary inflorescences (catkins) of PopCEN1-RNAi trees contained fewer flowers than did wild-type catkins, suggesting a possible role in maintaining the indeterminacy of the inflorescence apex. Expression of PopCEN1 was significantly correlated with delayed spring bud flush in multiple years, and in controlled environment experiments, 35S::PopCEN1 and RNAi transgenics required different chilling times to release dormancy. Considered together, these results indicate that PopCEN1/PopCEN2 help to integrate shoot developmental transitions that recur during each seasonal cycle with the age-related changes that occur over years of growth.
DOI: 10.1111/j.1365-313X.2010.04185.x
PubMed: 20202169
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Dye</name></author><author><name sortKey="Puzey, Joshua R" sort="Puzey, Joshua R" uniqKey="Puzey J" first="Joshua R" last="Puzey">Joshua R. Puzey</name></author><author><name sortKey="Etherington, Elizabeth" sort="Etherington, Elizabeth" uniqKey="Etherington E" first="Elizabeth" last="Etherington">Elizabeth Etherington</name></author><author><name sortKey="Sheng, Xiaoyan" sort="Sheng, Xiaoyan" uniqKey="Sheng X" first="Xiaoyan" last="Sheng">Xiaoyan Sheng</name></author><author><name sortKey="Meilan, Richard" sort="Meilan, Richard" uniqKey="Meilan R" first="Richard" last="Meilan">Richard Meilan</name></author><author><name sortKey="Strauss, Steven H" sort="Strauss, Steven H" uniqKey="Strauss S" first="Steven H" last="Strauss">Steven H. Strauss</name></author><author><name sortKey="Brunner, Amy M" sort="Brunner, Amy M" uniqKey="Brunner A" first="Amy M" last="Brunner">Amy M. Brunner</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2010">2010</date><idno type="RBID">pubmed:20202169</idno><idno type="pmid">20202169</idno><idno type="doi">10.1111/j.1365-313X.2010.04185.x</idno><idno type="wicri:Area/Main/Corpus">003277</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">003277</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Populus CEN/TFL1 regulates first onset of flowering, axillary meristem identity and dormancy release in Populus.</title><author><name sortKey="Mohamed, Rozi" sort="Mohamed, Rozi" uniqKey="Mohamed R" first="Rozi" last="Mohamed">Rozi Mohamed</name><affiliation><nlm:affiliation>Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR 97331-5752, USA.</nlm:affiliation></affiliation></author><author><name sortKey="Wang, Chieh Ting" sort="Wang, Chieh Ting" uniqKey="Wang C" first="Chieh-Ting" last="Wang">Chieh-Ting Wang</name></author><author><name sortKey="Ma, Cathleen" sort="Ma, Cathleen" uniqKey="Ma C" first="Cathleen" last="Ma">Cathleen Ma</name></author><author><name sortKey="Shevchenko, Olga" sort="Shevchenko, Olga" uniqKey="Shevchenko O" first="Olga" last="Shevchenko">Olga Shevchenko</name></author><author><name sortKey="Dye, Sarah J" sort="Dye, Sarah J" uniqKey="Dye S" first="Sarah J" last="Dye">Sarah J. Dye</name></author><author><name sortKey="Puzey, Joshua R" sort="Puzey, Joshua R" uniqKey="Puzey J" first="Joshua R" last="Puzey">Joshua R. Puzey</name></author><author><name sortKey="Etherington, Elizabeth" sort="Etherington, Elizabeth" uniqKey="Etherington E" first="Elizabeth" last="Etherington">Elizabeth Etherington</name></author><author><name sortKey="Sheng, Xiaoyan" sort="Sheng, Xiaoyan" uniqKey="Sheng X" first="Xiaoyan" last="Sheng">Xiaoyan Sheng</name></author><author><name sortKey="Meilan, Richard" sort="Meilan, Richard" uniqKey="Meilan R" first="Richard" last="Meilan">Richard Meilan</name></author><author><name sortKey="Strauss, Steven H" sort="Strauss, Steven H" uniqKey="Strauss S" first="Steven H" last="Strauss">Steven H. Strauss</name></author><author><name sortKey="Brunner, Amy M" sort="Brunner, Amy M" uniqKey="Brunner A" first="Amy M" last="Brunner">Amy M. Brunner</name></author></analytic><series><title level="j">The Plant journal : for cell and molecular biology</title><idno type="eISSN">1365-313X</idno><imprint><date when="2010" type="published">2010</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Gene Expression Regulation, Developmental (MeSH)</term><term>Gene Expression Regulation, Plant (MeSH)</term><term>Inflorescence (growth & development)</term><term>Meristem (growth & development)</term><term>Plant Proteins (genetics)</term><term>Plant Proteins (metabolism)</term><term>Plants, Genetically Modified (genetics)</term><term>Plants, Genetically Modified (growth & development)</term><term>Plants, Genetically Modified (metabolism)</term><term>Populus (genetics)</term><term>Populus (growth & development)</term><term>Populus (metabolism)</term><term>RNA Interference (MeSH)</term><term>RNA, Plant (genetics)</term><term>Sequence Analysis, DNA (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>Plant Proteins</term><term>RNA, Plant</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Plants, Genetically Modified</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Inflorescence</term><term>Meristem</term><term>Plants, Genetically Modified</term><term>Populus</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Plant Proteins</term><term>Plants, Genetically Modified</term><term>Populus</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Gene Expression Regulation, Developmental</term><term>Gene Expression Regulation, Plant</term><term>RNA Interference</term><term>Sequence Analysis, DNA</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Members of the CENTRORADIALIS (CEN)/TERMINAL FLOWER 1 (TFL1) subfamily control shoot meristem identity, and loss-of-function mutations in both monopodial and sympodial herbaceous plants result in dramatic changes in plant architecture. We studied the degree of conservation between herbaceous and woody perennial plants in shoot system regulation by overexpression and RNA interference (RNAi)-mediated suppression of poplar orthologs of CEN, and the related gene MOTHER OF FT AND TFL 1 (MFT). Field study of transgenic poplars (Populus spp.) for over 6 years showed that downregulation of PopCEN1 and its close paralog, PopCEN2, accelerated the onset of mature tree characteristics, including age of first flowering, number of inflorescences and proportion of short shoots. Surprisingly, terminal vegetative meristems remained indeterminate in PopCEN1-RNAi trees, suggesting the possibility that florigen signals are transported to axillary mersitems rather than the shoot apex. However, the axillary inflorescences (catkins) of PopCEN1-RNAi trees contained fewer flowers than did wild-type catkins, suggesting a possible role in maintaining the indeterminacy of the inflorescence apex. Expression of PopCEN1 was significantly correlated with delayed spring bud flush in multiple years, and in controlled environment experiments, 35S::PopCEN1 and RNAi transgenics required different chilling times to release dormancy. Considered together, these results indicate that PopCEN1/PopCEN2 help to integrate shoot developmental transitions that recur during each seasonal cycle with the age-related changes that occur over years of growth.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">20202169</PMID><DateCompleted><Year>2010</Year><Month>08</Month><Day>30</Day></DateCompleted><DateRevised><Year>2010</Year><Month>06</Month><Day>11</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1365-313X</ISSN><JournalIssue CitedMedium="Internet"><Volume>62</Volume><Issue>4</Issue><PubDate><Year>2010</Year><Month>May</Month><Day>01</Day></PubDate></JournalIssue><Title>The Plant journal : for cell and molecular biology</Title><ISOAbbreviation>Plant J</ISOAbbreviation></Journal><ArticleTitle>Populus CEN/TFL1 regulates first onset of flowering, axillary meristem identity and dormancy release in Populus.</ArticleTitle><Pagination><MedlinePgn>674-88</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/j.1365-313X.2010.04185.x</ELocationID><Abstract><AbstractText>Members of the CENTRORADIALIS (CEN)/TERMINAL FLOWER 1 (TFL1) subfamily control shoot meristem identity, and loss-of-function mutations in both monopodial and sympodial herbaceous plants result in dramatic changes in plant architecture. We studied the degree of conservation between herbaceous and woody perennial plants in shoot system regulation by overexpression and RNA interference (RNAi)-mediated suppression of poplar orthologs of CEN, and the related gene MOTHER OF FT AND TFL 1 (MFT). Field study of transgenic poplars (Populus spp.) for over 6 years showed that downregulation of PopCEN1 and its close paralog, PopCEN2, accelerated the onset of mature tree characteristics, including age of first flowering, number of inflorescences and proportion of short shoots. Surprisingly, terminal vegetative meristems remained indeterminate in PopCEN1-RNAi trees, suggesting the possibility that florigen signals are transported to axillary mersitems rather than the shoot apex. However, the axillary inflorescences (catkins) of PopCEN1-RNAi trees contained fewer flowers than did wild-type catkins, suggesting a possible role in maintaining the indeterminacy of the inflorescence apex. Expression of PopCEN1 was significantly correlated with delayed spring bud flush in multiple years, and in controlled environment experiments, 35S::PopCEN1 and RNAi transgenics required different chilling times to release dormancy. Considered together, these results indicate that PopCEN1/PopCEN2 help to integrate shoot developmental transitions that recur during each seasonal cycle with the age-related changes that occur over years of growth.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Mohamed</LastName><ForeName>Rozi</ForeName><Initials>R</Initials><AffiliationInfo><Affiliation>Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR 97331-5752, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Wang</LastName><ForeName>Chieh-Ting</ForeName><Initials>CT</Initials></Author><Author ValidYN="Y"><LastName>Ma</LastName><ForeName>Cathleen</ForeName><Initials>C</Initials></Author><Author ValidYN="Y"><LastName>Shevchenko</LastName><ForeName>Olga</ForeName><Initials>O</Initials></Author><Author ValidYN="Y"><LastName>Dye</LastName><ForeName>Sarah J</ForeName><Initials>SJ</Initials></Author><Author ValidYN="Y"><LastName>Puzey</LastName><ForeName>Joshua R</ForeName><Initials>JR</Initials></Author><Author ValidYN="Y"><LastName>Etherington</LastName><ForeName>Elizabeth</ForeName><Initials>E</Initials></Author><Author ValidYN="Y"><LastName>Sheng</LastName><ForeName>Xiaoyan</ForeName><Initials>X</Initials></Author><Author ValidYN="Y"><LastName>Meilan</LastName><ForeName>Richard</ForeName><Initials>R</Initials></Author><Author ValidYN="Y"><LastName>Strauss</LastName><ForeName>Steven H</ForeName><Initials>SH</Initials></Author><Author ValidYN="Y"><LastName>Brunner</LastName><ForeName>Amy M</ForeName><Initials>AM</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType><PublicationType UI="D013486">Research Support, U.S. Gov't, Non-P.H.S.</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2010</Year><Month>02</Month><Day>26</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Plant J</MedlineTA><NlmUniqueID>9207397</NlmUniqueID><ISSNLinking>0960-7412</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D010940">Plant Proteins</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D018749">RNA, Plant</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D018507" MajorTopicYN="N">Gene Expression Regulation, Developmental</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018506" MajorTopicYN="N">Gene Expression Regulation, Plant</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D056626" MajorTopicYN="N">Inflorescence</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018519" MajorTopicYN="N">Meristem</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010940" MajorTopicYN="N">Plant Proteins</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D030821" MajorTopicYN="N">Plants, Genetically Modified</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D034622" MajorTopicYN="N">RNA Interference</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018749" MajorTopicYN="N">RNA, Plant</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D017422" MajorTopicYN="N">Sequence Analysis, DNA</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2010</Year><Month>3</Month><Day>6</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2010</Year><Month>3</Month><Day>6</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2010</Year><Month>8</Month><Day>31</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">20202169</ArticleId><ArticleId IdType="pii">TPJ4185</ArticleId><ArticleId IdType="doi">10.1111/j.1365-313X.2010.04185.x</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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