PoplarV1, Main, Exploration, bibRecord, 002815

A role for the miR396/GRF network in specification of organ type during flower development, as supported by ectopic expression of Populus trichocarpa miR396c in transgenic tobacco.

Identifieur interne : 002815 ( Main/Exploration ); précédent : 002814; suivant : 002816

A role for the miR396/GRF network in specification of organ type during flower development, as supported by ectopic expression of Populus trichocarpa miR396c in transgenic tobacco.

Auteurs : M. Baucher [Belgique] ; J. Moussawi ; O M Vandeputte ; D. Monteyne ; A. Mol ; D. Pérez-Morga ; M. El Jaziri

Source :

Plant biology (Stuttgart, Germany) [ 1438-8677 ] ; 2013.

RBID : pubmed:23173976

Descripteurs français

English descriptors

KwdEn :
- 14-3-3 Proteins (genetics), 14-3-3 Proteins (metabolism), Arabidopsis (genetics), Arabidopsis (growth & development), Arabidopsis (metabolism), Arabidopsis Proteins (genetics), Arabidopsis Proteins (metabolism), Binding Sites (MeSH), Cotyledon (MeSH), Down-Regulation (MeSH), Flowers (growth & development), Flowers (metabolism), Gene Expression Regulation, Plant (MeSH), Genes, Plant (MeSH), MicroRNAs (genetics), MicroRNAs (metabolism), Mutation (MeSH), Organogenesis (genetics), Phenotype (MeSH), Plant Development (genetics), Plants, Genetically Modified (MeSH), Populus (genetics), Populus (growth & development), Populus (metabolism), Promoter Regions, Genetic (MeSH), RNA, Messenger (metabolism), Radicular Cyst (MeSH), Tobacco (genetics), Tobacco (growth & development), Tobacco (metabolism), Trans-Activators (genetics), Trans-Activators (metabolism).
MESH :
- chemical , genetics : 14-3-3 Proteins, Arabidopsis Proteins, MicroRNAs, Trans-Activators.
- chemical , metabolism : 14-3-3 Proteins, Arabidopsis Proteins, MicroRNAs, RNA, Messenger, Trans-Activators.
- genetics : Arabidopsis, Organogenesis, Plant Development, Populus, Tobacco.
- growth & development : Arabidopsis, Flowers, Populus, Tobacco.
- metabolism : Arabidopsis, Flowers, Populus, Tobacco.
- Binding Sites, Cotyledon, Down-Regulation, Gene Expression Regulation, Plant, Genes, Plant, Mutation, Phenotype, Plants, Genetically Modified, Promoter Regions, Genetic, Radicular Cyst.

Abstract

The MIR396 family, composed of ath-miR396a and ath-miR396b in Arabidopsis, is conserved among plant species and is known to target the Growth-Regulating Factor (GRF) gene family. ath-miR396 overexpressors or grf mutants are characterised by small and narrow leaves and show embryogenic defects such as cotyledon fusion. Heterologous expression of ath-miR396a has been reported in tobacco and resulted in reduction of the expression of three NtGRF genes. In this study, the precursor of the Populus trichocarpa ptc-miR396c, with a mature sequence identical to ath-miR396b, was expressed under control of the CaMV35S promoter in tobacco. Typical phenotypes of GRF down-regulation were observed, including cotyledon fusion and lack of shoot apical meristem (SAM). At later stage of growth, transgenic plants had delayed development and altered specification of organ type during flower development. The third and fourth whorls of floral organs were modified into stigmatoid anthers and fasciated carpels, respectively. Several NtGRF genes containing a miR396 binding site were found to be down-regulated, and the cleavage of their corresponding mRNA at the miR396 binding site was confirmed for two of them using RACE-PCR analysis. The data obtained agree with the functional conservation of the miR396 family in plants and suggest a role for the miR396/GRF network in determination of floral organ specification.

DOI: 10.1111/j.1438-8677.2012.00696.x
PubMed: 23173976

Affiliations:

Links toward previous steps (curation, corpus...)

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Le document en format XML

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<term>Arabidopsis (growth & development)</term>
<term>Arabidopsis (metabolism)</term>
<term>Arabidopsis Proteins (genetics)</term>
<term>Arabidopsis Proteins (metabolism)</term>
<term>Binding Sites (MeSH)</term>
<term>Cotyledon (MeSH)</term>
<term>Down-Regulation (MeSH)</term>
<term>Flowers (growth & development)</term>
<term>Flowers (metabolism)</term>
<term>Gene Expression Regulation, Plant (MeSH)</term>
<term>Genes, Plant (MeSH)</term>
<term>MicroRNAs (genetics)</term>
<term>MicroRNAs (metabolism)</term>
<term>Mutation (MeSH)</term>
<term>Organogenesis (genetics)</term>
<term>Phenotype (MeSH)</term>
<term>Plant Development (genetics)</term>
<term>Plants, Genetically Modified (MeSH)</term>
<term>Populus (genetics)</term>
<term>Populus (growth & development)</term>
<term>Populus (metabolism)</term>
<term>Promoter Regions, Genetic (MeSH)</term>
<term>RNA, Messenger (metabolism)</term>
<term>Radicular Cyst (MeSH)</term>
<term>Tobacco (genetics)</term>
<term>Tobacco (growth & development)</term>
<term>Tobacco (metabolism)</term>
<term>Trans-Activators (genetics)</term>
<term>Trans-Activators (metabolism)</term>
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<term>Arabidopsis (croissance et développement)</term>
<term>Arabidopsis (génétique)</term>
<term>Arabidopsis (métabolisme)</term>
<term>Cotylédon (MeSH)</term>
<term>Développement des plantes (génétique)</term>
<term>Fleurs (croissance et développement)</term>
<term>Fleurs (métabolisme)</term>
<term>Gènes de plante (MeSH)</term>
<term>Kyste radiculaire (MeSH)</term>
<term>Mutation (MeSH)</term>
<term>Organogenèse (génétique)</term>
<term>Phénotype (MeSH)</term>
<term>Populus (croissance et développement)</term>
<term>Populus (génétique)</term>
<term>Populus (métabolisme)</term>
<term>Protéines 14-3-3 (génétique)</term>
<term>Protéines 14-3-3 (métabolisme)</term>
<term>Protéines d'Arabidopsis (génétique)</term>
<term>Protéines d'Arabidopsis (métabolisme)</term>
<term>Régions promotrices (génétique) (MeSH)</term>
<term>Régulation de l'expression des gènes végétaux (MeSH)</term>
<term>Régulation négative (MeSH)</term>
<term>Sites de fixation (MeSH)</term>
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<term>Tabac (génétique)</term>
<term>Tabac (métabolisme)</term>
<term>Transactivateurs (génétique)</term>
<term>Transactivateurs (métabolisme)</term>
<term>Végétaux génétiquement modifiés (MeSH)</term>
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<term>MicroRNAs</term>
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<term>Trans-Activators</term>
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<term>Populus</term>
<term>Tabac</term>
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<term>Organogenesis</term>
<term>Plant Development</term>
<term>Populus</term>
<term>Tobacco</term>
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<keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Arabidopsis</term>
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<term>Organogenèse</term>
<term>Populus</term>
<term>Protéines 14-3-3</term>
<term>Protéines d'Arabidopsis</term>
<term>Tabac</term>
<term>Transactivateurs</term>
<term>microARN</term>
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<keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Arabidopsis</term>
<term>Flowers</term>
<term>Populus</term>
<term>Tobacco</term>
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<term>Arabidopsis</term>
<term>Fleurs</term>
<term>Populus</term>
<term>Protéines 14-3-3</term>
<term>Protéines d'Arabidopsis</term>
<term>Tabac</term>
<term>Transactivateurs</term>
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<term>Cotyledon</term>
<term>Down-Regulation</term>
<term>Gene Expression Regulation, Plant</term>
<term>Genes, Plant</term>
<term>Mutation</term>
<term>Phenotype</term>
<term>Plants, Genetically Modified</term>
<term>Promoter Regions, Genetic</term>
<term>Radicular Cyst</term>
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<term>Mutation</term>
<term>Phénotype</term>
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<term>Régulation de l'expression des gènes végétaux</term>
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<front><div type="abstract" xml:lang="en">The MIR396 family, composed of ath-miR396a and ath-miR396b in Arabidopsis, is conserved among plant species and is known to target the Growth-Regulating Factor (GRF) gene family. ath-miR396 overexpressors or grf mutants are characterised by small and narrow leaves and show embryogenic defects such as cotyledon fusion. Heterologous expression of ath-miR396a has been reported in tobacco and resulted in reduction of the expression of three NtGRF genes. In this study, the precursor of the Populus trichocarpa ptc-miR396c, with a mature sequence identical to ath-miR396b, was expressed under control of the CaMV35S promoter in tobacco. Typical phenotypes of GRF down-regulation were observed, including cotyledon fusion and lack of shoot apical meristem (SAM). At later stage of growth, transgenic plants had delayed development and altered specification of organ type during flower development. The third and fourth whorls of floral organs were modified into stigmatoid anthers and fasciated carpels, respectively. Several NtGRF genes containing a miR396 binding site were found to be down-regulated, and the cleavage of their corresponding mRNA at the miR396 binding site was confirmed for two of them using RACE-PCR analysis. The data obtained agree with the functional conservation of the miR396 family in plants and suggest a role for the miR396/GRF network in determination of floral organ specification. </div>
</front>
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<DateCompleted><Year>2014</Year>
<Month>03</Month>
<Day>05</Day>
</DateCompleted>
<DateRevised><Year>2013</Year>
<Month>08</Month>
<Day>15</Day>
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<JournalIssue CitedMedium="Internet"><Volume>15</Volume>
<Issue>5</Issue>
<PubDate><Year>2013</Year>
<Month>Sep</Month>
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<Title>Plant biology (Stuttgart, Germany)</Title>
<ISOAbbreviation>Plant Biol (Stuttg)</ISOAbbreviation>
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<ArticleTitle>A role for the miR396/GRF network in specification of organ type during flower development, as supported by ectopic expression of Populus trichocarpa miR396c in transgenic tobacco.</ArticleTitle>
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<Abstract><AbstractText>The MIR396 family, composed of ath-miR396a and ath-miR396b in Arabidopsis, is conserved among plant species and is known to target the Growth-Regulating Factor (GRF) gene family. ath-miR396 overexpressors or grf mutants are characterised by small and narrow leaves and show embryogenic defects such as cotyledon fusion. Heterologous expression of ath-miR396a has been reported in tobacco and resulted in reduction of the expression of three NtGRF genes. In this study, the precursor of the Populus trichocarpa ptc-miR396c, with a mature sequence identical to ath-miR396b, was expressed under control of the CaMV35S promoter in tobacco. Typical phenotypes of GRF down-regulation were observed, including cotyledon fusion and lack of shoot apical meristem (SAM). At later stage of growth, transgenic plants had delayed development and altered specification of organ type during flower development. The third and fourth whorls of floral organs were modified into stigmatoid anthers and fasciated carpels, respectively. Several NtGRF genes containing a miR396 binding site were found to be down-regulated, and the cleavage of their corresponding mRNA at the miR396 binding site was confirmed for two of them using RACE-PCR analysis. The data obtained agree with the functional conservation of the miR396 family in plants and suggest a role for the miR396/GRF network in determination of floral organ specification. </AbstractText>
<CopyrightInformation>© 2012 German Botanical Society and The Royal Botanical Society of the Netherlands.</CopyrightInformation>
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<ForeName>M</ForeName>
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<Keyword MajorTopicYN="N">miR396</Keyword>
<Keyword MajorTopicYN="N">seedling development</Keyword>
<Keyword MajorTopicYN="N">stamen and carpel development</Keyword>
<Keyword MajorTopicYN="N">stigmatoid anther</Keyword>
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<PubmedData><History><PubMedPubDate PubStatus="received"><Year>2012</Year>
<Month>05</Month>
<Day>21</Day>
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<PubMedPubDate PubStatus="accepted"><Year>2012</Year>
<Month>09</Month>
<Day>26</Day>
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<PubMedPubDate PubStatus="entrez"><Year>2012</Year>
<Month>11</Month>
<Day>24</Day>
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<Month>3</Month>
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<PublicationStatus>ppublish</PublicationStatus>
<ArticleIdList><ArticleId IdType="pubmed">23173976</ArticleId>
<ArticleId IdType="doi">10.1111/j.1438-8677.2012.00696.x</ArticleId>
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<affiliations><list><country><li>Belgique</li>
</country>
<region><li>Région de Bruxelles-Capitale</li>
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<settlement><li>Bruxelles</li>
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<orgName><li>Université libre de Bruxelles</li>
</orgName>
</list>
<tree><noCountry><name sortKey="El Jaziri, M" sort="El Jaziri, M" uniqKey="El Jaziri M" first="M" last="El Jaziri">M. El Jaziri</name>
<name sortKey="Mol, A" sort="Mol, A" uniqKey="Mol A" first="A" last="Mol">A. Mol</name>
<name sortKey="Monteyne, D" sort="Monteyne, D" uniqKey="Monteyne D" first="D" last="Monteyne">D. Monteyne</name>
<name sortKey="Moussawi, J" sort="Moussawi, J" uniqKey="Moussawi J" first="J" last="Moussawi">J. Moussawi</name>
<name sortKey="Perez Morga, D" sort="Perez Morga, D" uniqKey="Perez Morga D" first="D" last="Pérez-Morga">D. Pérez-Morga</name>
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A role for the miR396/GRF network in specification of organ type during flower development, as supported by ectopic expression of Populus trichocarpa miR396c in transgenic tobacco.

A role for the miR396/GRF network in specification of organ type during flower development, as supported by ectopic expression of Populus trichocarpa miR396c in transgenic tobacco.

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