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LHY2 Integrates Night-Length Information to Determine Timing of Poplar Photoperiodic Growth.

Identifieur interne : 000860 ( Main/Exploration ); précédent : 000859; suivant : 000861

LHY2 Integrates Night-Length Information to Determine Timing of Poplar Photoperiodic Growth.

Auteurs : José M. Ramos-Sánchez [Espagne] ; Paolo M. Triozzi [Espagne] ; Daniel Alique [Espagne] ; Feng Geng [Royaume-Uni] ; Mingjun Gao [Royaume-Uni] ; Katja E. Jaeger [Allemagne] ; Philip A. Wigge [Allemagne] ; Isabel Allona [Espagne] ; Mariano Perales [Espagne]

Source :

RBID : pubmed:31257141

Descripteurs français

English descriptors

Abstract

Day length is a key indicator of seasonal information that determines major patterns of behavior in plants and animals. Photoperiodism has been described in plants for about 100 years, but the underlying molecular mechanisms of day length perception and signal transduction in many systems are not well understood. In trees, photoperiod perception plays a major role in growth cessation during the autumn as well as activating the resumption of shoot growth in the spring, both processes controlled by FLOWERING LOCUS T2 (FT2) expression levels and critical for the survival of perennial plants over winter [1-4]. It has been shown that the conserved role of poplar orthologs to Arabidopsis CONSTANS (CO) directly activates FT2 expression [1, 5]. Overexpression of poplar CO is, however, not sufficient to sustain FT2 expression under short days [5], pointing to the presence of an additional short-day-dependent FT2 repression pathway in poplar. We find that night length information is transmitted via the expression level of a poplar clock gene, LATE ELONGATED HYPOCOTYL 2 (LHY2), which controls FT2 expression. Repression of FT2 is a function of the night extension and LHY2 expression level. We show that LHY2 is necessary and sufficient to activate night length repressive signaling. We propose that the photoperiodic control of shoot growth in poplar involves a balance between FT2 activating and repressing pathways. Our results show that poplar relies on night length measurement to determine photoperiodism through interaction between light signaling pathways and the circadian clock.

DOI: 10.1016/j.cub.2019.06.003
PubMed: 31257141


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Le document en format XML

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<term>Circadian Rhythm (genetics)</term>
<term>Photoperiod (MeSH)</term>
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<term>Plant Proteins (metabolism)</term>
<term>Populus (genetics)</term>
<term>Populus (growth & development)</term>
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<term>Photopériode (MeSH)</term>
<term>Populus (croissance et développement)</term>
<term>Populus (génétique)</term>
<term>Protéines végétales (génétique)</term>
<term>Protéines végétales (métabolisme)</term>
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<term>Circadian Rhythm</term>
<term>Populus</term>
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<div type="abstract" xml:lang="en">Day length is a key indicator of seasonal information that determines major patterns of behavior in plants and animals. Photoperiodism has been described in plants for about 100 years, but the underlying molecular mechanisms of day length perception and signal transduction in many systems are not well understood. In trees, photoperiod perception plays a major role in growth cessation during the autumn as well as activating the resumption of shoot growth in the spring, both processes controlled by FLOWERING LOCUS T2 (FT2) expression levels and critical for the survival of perennial plants over winter [1-4]. It has been shown that the conserved role of poplar orthologs to Arabidopsis CONSTANS (CO) directly activates FT2 expression [1, 5]. Overexpression of poplar CO is, however, not sufficient to sustain FT2 expression under short days [5], pointing to the presence of an additional short-day-dependent FT2 repression pathway in poplar. We find that night length information is transmitted via the expression level of a poplar clock gene, LATE ELONGATED HYPOCOTYL 2 (LHY2), which controls FT2 expression. Repression of FT2 is a function of the night extension and LHY2 expression level. We show that LHY2 is necessary and sufficient to activate night length repressive signaling. We propose that the photoperiodic control of shoot growth in poplar involves a balance between FT2 activating and repressing pathways. Our results show that poplar relies on night length measurement to determine photoperiodism through interaction between light signaling pathways and the circadian clock.</div>
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<ISOAbbreviation>Curr Biol</ISOAbbreviation>
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<ArticleTitle>LHY2 Integrates Night-Length Information to Determine Timing of Poplar Photoperiodic Growth.</ArticleTitle>
<Pagination>
<MedlinePgn>2402-2406.e4</MedlinePgn>
</Pagination>
<ELocationID EIdType="pii" ValidYN="Y">S0960-9822(19)30696-7</ELocationID>
<ELocationID EIdType="doi" ValidYN="Y">10.1016/j.cub.2019.06.003</ELocationID>
<Abstract>
<AbstractText>Day length is a key indicator of seasonal information that determines major patterns of behavior in plants and animals. Photoperiodism has been described in plants for about 100 years, but the underlying molecular mechanisms of day length perception and signal transduction in many systems are not well understood. In trees, photoperiod perception plays a major role in growth cessation during the autumn as well as activating the resumption of shoot growth in the spring, both processes controlled by FLOWERING LOCUS T2 (FT2) expression levels and critical for the survival of perennial plants over winter [1-4]. It has been shown that the conserved role of poplar orthologs to Arabidopsis CONSTANS (CO) directly activates FT2 expression [1, 5]. Overexpression of poplar CO is, however, not sufficient to sustain FT2 expression under short days [5], pointing to the presence of an additional short-day-dependent FT2 repression pathway in poplar. We find that night length information is transmitted via the expression level of a poplar clock gene, LATE ELONGATED HYPOCOTYL 2 (LHY2), which controls FT2 expression. Repression of FT2 is a function of the night extension and LHY2 expression level. We show that LHY2 is necessary and sufficient to activate night length repressive signaling. We propose that the photoperiodic control of shoot growth in poplar involves a balance between FT2 activating and repressing pathways. Our results show that poplar relies on night length measurement to determine photoperiodism through interaction between light signaling pathways and the circadian clock.</AbstractText>
<CopyrightInformation>Copyright © 2019 The Authors. Published by Elsevier Ltd.. All rights reserved.</CopyrightInformation>
</Abstract>
<AuthorList CompleteYN="Y">
<Author ValidYN="Y">
<LastName>Ramos-Sánchez</LastName>
<ForeName>José M</ForeName>
<Initials>JM</Initials>
<AffiliationInfo>
<Affiliation>Centro de Biotecnología y Genómica de Plantas (CBGP, UPM-INIA), Universidad Politécnica de Madrid (UPM), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo, Pozuelo de Alarcón, Madrid 28223, Spain.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Triozzi</LastName>
<ForeName>Paolo M</ForeName>
<Initials>PM</Initials>
<AffiliationInfo>
<Affiliation>Centro de Biotecnología y Genómica de Plantas (CBGP, UPM-INIA), Universidad Politécnica de Madrid (UPM), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo, Pozuelo de Alarcón, Madrid 28223, Spain.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Alique</LastName>
<ForeName>Daniel</ForeName>
<Initials>D</Initials>
<AffiliationInfo>
<Affiliation>Centro de Biotecnología y Genómica de Plantas (CBGP, UPM-INIA), Universidad Politécnica de Madrid (UPM), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo, Pozuelo de Alarcón, Madrid 28223, Spain.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Geng</LastName>
<ForeName>Feng</ForeName>
<Initials>F</Initials>
<AffiliationInfo>
<Affiliation>Sainsbury Laboratory, University of Cambridge, Cambridge CB2 1LR, UK.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Gao</LastName>
<ForeName>Mingjun</ForeName>
<Initials>M</Initials>
<AffiliationInfo>
<Affiliation>Sainsbury Laboratory, University of Cambridge, Cambridge CB2 1LR, UK.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Jaeger</LastName>
<ForeName>Katja E</ForeName>
<Initials>KE</Initials>
<AffiliationInfo>
<Affiliation>Sainsbury Laboratory, University of Cambridge, Cambridge CB2 1LR, UK; Leibniz-Institut für Gemüse- und Zierpflanzenbau, Großbeeren 14979, Germany.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Wigge</LastName>
<ForeName>Philip A</ForeName>
<Initials>PA</Initials>
<AffiliationInfo>
<Affiliation>Sainsbury Laboratory, University of Cambridge, Cambridge CB2 1LR, UK; Leibniz-Institut für Gemüse- und Zierpflanzenbau, Großbeeren 14979, Germany; Institute of Biochemistry and Biology, University of Potsdam, Potsdam 14476, Germany.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Allona</LastName>
<ForeName>Isabel</ForeName>
<Initials>I</Initials>
<AffiliationInfo>
<Affiliation>Centro de Biotecnología y Genómica de Plantas (CBGP, UPM-INIA), Universidad Politécnica de Madrid (UPM), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo, Pozuelo de Alarcón, Madrid 28223, Spain; Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid (UPM), Madrid 28040, Spain. Electronic address: isabel.allona@upm.es.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Perales</LastName>
<ForeName>Mariano</ForeName>
<Initials>M</Initials>
<AffiliationInfo>
<Affiliation>Centro de Biotecnología y Genómica de Plantas (CBGP, UPM-INIA), Universidad Politécnica de Madrid (UPM), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo, Pozuelo de Alarcón, Madrid 28223, Spain. Electronic address: mariano.perales@upm.es.</Affiliation>
</AffiliationInfo>
</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>2019</Year>
<Month>06</Month>
<Day>27</Day>
</ArticleDate>
</Article>
<MedlineJournalInfo>
<Country>England</Country>
<MedlineTA>Curr Biol</MedlineTA>
<NlmUniqueID>9107782</NlmUniqueID>
<ISSNLinking>0960-9822</ISSNLinking>
</MedlineJournalInfo>
<ChemicalList>
<Chemical>
<RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D010940">Plant Proteins</NameOfSubstance>
</Chemical>
</ChemicalList>
<CitationSubset>IM</CitationSubset>
<MeshHeadingList>
<MeshHeading>
<DescriptorName UI="D002940" MajorTopicYN="N">Circadian Rhythm</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D017440" MajorTopicYN="Y">Photoperiod</DescriptorName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D010940" MajorTopicYN="N">Plant Proteins</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName>
<QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName>
<QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName>
</MeshHeading>
</MeshHeadingList>
<KeywordList Owner="NOTNLM">
<Keyword MajorTopicYN="Y">FLOWERING LOCUS T</Keyword>
<Keyword MajorTopicYN="Y">FT</Keyword>
<Keyword MajorTopicYN="Y">LHY</Keyword>
<Keyword MajorTopicYN="Y">Phy</Keyword>
<Keyword MajorTopicYN="Y">circadian clock</Keyword>
<Keyword MajorTopicYN="Y">growth cessation</Keyword>
<Keyword MajorTopicYN="Y">growth-dormancy cycles</Keyword>
<Keyword MajorTopicYN="Y">late elongated hypocotyl</Keyword>
<Keyword MajorTopicYN="Y">night-length measurement</Keyword>
<Keyword MajorTopicYN="Y">photoperiodism</Keyword>
<Keyword MajorTopicYN="Y">phytochromes</Keyword>
<Keyword MajorTopicYN="Y">poplar</Keyword>
<Keyword MajorTopicYN="Y">shoot apical meristem</Keyword>
</KeywordList>
</MedlineCitation>
<PubmedData>
<History>
<PubMedPubDate PubStatus="received">
<Year>2019</Year>
<Month>03</Month>
<Day>18</Day>
</PubMedPubDate>
<PubMedPubDate PubStatus="revised">
<Year>2019</Year>
<Month>05</Month>
<Day>06</Day>
</PubMedPubDate>
<PubMedPubDate PubStatus="accepted">
<Year>2019</Year>
<Month>06</Month>
<Day>03</Day>
</PubMedPubDate>
<PubMedPubDate PubStatus="pubmed">
<Year>2019</Year>
<Month>7</Month>
<Day>2</Day>
<Hour>6</Hour>
<Minute>0</Minute>
</PubMedPubDate>
<PubMedPubDate PubStatus="medline">
<Year>2020</Year>
<Month>7</Month>
<Day>11</Day>
<Hour>6</Hour>
<Minute>0</Minute>
</PubMedPubDate>
<PubMedPubDate PubStatus="entrez">
<Year>2019</Year>
<Month>7</Month>
<Day>2</Day>
<Hour>6</Hour>
<Minute>0</Minute>
</PubMedPubDate>
</History>
<PublicationStatus>ppublish</PublicationStatus>
<ArticleIdList>
<ArticleId IdType="pubmed">31257141</ArticleId>
<ArticleId IdType="pii">S0960-9822(19)30696-7</ArticleId>
<ArticleId IdType="doi">10.1016/j.cub.2019.06.003</ArticleId>
</ArticleIdList>
</PubmedData>
</pubmed>
<affiliations>
<list>
<country>
<li>Allemagne</li>
<li>Espagne</li>
<li>Royaume-Uni</li>
</country>
<region>
<li>Angleterre</li>
<li>Angleterre de l'Est</li>
<li>Brandebourg</li>
<li>Communauté de Madrid</li>
</region>
<settlement>
<li>Cambridge</li>
<li>Potsdam</li>
</settlement>
<orgName>
<li>Université de Cambridge</li>
</orgName>
</list>
<tree>
<country name="Espagne">
<region name="Communauté de Madrid">
<name sortKey="Ramos Sanchez, Jose M" sort="Ramos Sanchez, Jose M" uniqKey="Ramos Sanchez J" first="José M" last="Ramos-Sánchez">José M. Ramos-Sánchez</name>
</region>
<name sortKey="Alique, Daniel" sort="Alique, Daniel" uniqKey="Alique D" first="Daniel" last="Alique">Daniel Alique</name>
<name sortKey="Allona, Isabel" sort="Allona, Isabel" uniqKey="Allona I" first="Isabel" last="Allona">Isabel Allona</name>
<name sortKey="Perales, Mariano" sort="Perales, Mariano" uniqKey="Perales M" first="Mariano" last="Perales">Mariano Perales</name>
<name sortKey="Triozzi, Paolo M" sort="Triozzi, Paolo M" uniqKey="Triozzi P" first="Paolo M" last="Triozzi">Paolo M. Triozzi</name>
</country>
<country name="Royaume-Uni">
<region name="Angleterre">
<name sortKey="Geng, Feng" sort="Geng, Feng" uniqKey="Geng F" first="Feng" last="Geng">Feng Geng</name>
</region>
<name sortKey="Gao, Mingjun" sort="Gao, Mingjun" uniqKey="Gao M" first="Mingjun" last="Gao">Mingjun Gao</name>
</country>
<country name="Allemagne">
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<name sortKey="Jaeger, Katja E" sort="Jaeger, Katja E" uniqKey="Jaeger K" first="Katja E" last="Jaeger">Katja E. Jaeger</name>
</region>
<name sortKey="Wigge, Philip A" sort="Wigge, Philip A" uniqKey="Wigge P" first="Philip A" last="Wigge">Philip A. Wigge</name>
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