Novel aspects of transcriptional regulation in the winter survival and maintenance mechanism of poplar.
Identifieur interne : 002D77 ( Main/Exploration ); précédent : 002D76; suivant : 002D78Novel aspects of transcriptional regulation in the winter survival and maintenance mechanism of poplar.
Auteurs : Jae-Heung Ko [Corée du Sud] ; Constantinos Prassinos ; Daniel Keathley ; Kyung-Hwan HanSource :
- Tree physiology [ 1758-4469 ] ; 2011.
Descripteurs français
- KwdFr :
- Adaptation physiologique (génétique), Analyse de profil d'expression de gènes (MeSH), Facteurs de transcription (génétique), Gènes de plante (MeSH), Métabolisme glucidique (génétique), Populus (croissance et développement), Populus (génétique), Régulation de l'expression des gènes végétaux (MeSH), Réponse au choc froid (génétique), Saisons (MeSH), Tiges de plante (croissance et développement), Tiges de plante (génétique).
- MESH :
- croissance et développement : Populus, Tiges de plante.
- génétique : Adaptation physiologique, Facteurs de transcription, Métabolisme glucidique, Populus, Réponse au choc froid, Tiges de plante.
- Analyse de profil d'expression de gènes, Gènes de plante, Régulation de l'expression des gènes végétaux, Saisons.
English descriptors
- KwdEn :
- Adaptation, Physiological (genetics), Carbohydrate Metabolism (genetics), Cold-Shock Response (genetics), Gene Expression Profiling (MeSH), Gene Expression Regulation, Plant (MeSH), Genes, Plant (MeSH), Plant Stems (genetics), Plant Stems (growth & development), Populus (genetics), Populus (growth & development), Seasons (MeSH), Transcription Factors (genetics).
- MESH :
- chemical , genetics : Transcription Factors.
- genetics : Adaptation, Physiological, Carbohydrate Metabolism, Cold-Shock Response, Plant Stems, Populus.
- growth & development : Plant Stems, Populus.
- Gene Expression Profiling, Gene Expression Regulation, Plant, Genes, Plant, Seasons.
Abstract
Temperate woody plants have developed sophisticated winter survival and maintenance mechanisms that enable them to adapt rapidly to the annual cycle of environmental changes. Here, we demonstrate notable aspects of the transcriptional regulation adopted by poplar in winter/dormancy, employing biochemical and whole transcriptome analysis, and showing high levels of transcriptional activity in a broad spectrum of genes during the dormancy period. A total of 3237 probe sets upregulated more than threefold in winter/dormancy stems over summer/active-growth stems were identified. As expected, genes related to cold hardiness and defense were over-represented. Carbohydrate biosynthesis and transport-related genes were also actively expressed in winter/dormancy stems. Further biochemical analyses verified the dormancy/winter transcription phenotype. More than 60% of the winter upregulated transcription factors (TFs) were related to either biotic or abiotic stress. This finding substantiates that the major transcriptional network of winter/dormancy stems is related to stress tolerance, such as dehydration, cold tolerance and defense. Furthermore, during winter/dormancy, preferential expression of genes involved in cell wall biosynthesis or modification, indirect transcriptional regulation (RNA metabolism) and chromatin modification/remodeling were observed. Taken together, these findings show that regulation of gene expression associated with winter survival and maintenance extends beyond control by promoter-binding TFs to include regulation at the post-transcriptional and chromatin levels.
DOI: 10.1093/treephys/tpq109
PubMed: 21383024
Affiliations:
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uniqKey="Keathley D" first="Daniel" last="Keathley">Daniel Keathley</name></author><author><name sortKey="Han, Kyung Hwan" sort="Han, Kyung Hwan" uniqKey="Han K" first="Kyung-Hwan" last="Han">Kyung-Hwan Han</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2011">2011</date><idno type="RBID">pubmed:21383024</idno><idno type="pmid">21383024</idno><idno type="doi">10.1093/treephys/tpq109</idno><idno type="wicri:Area/Main/Corpus">002E98</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">002E98</idno><idno type="wicri:Area/Main/Curation">002E98</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">002E98</idno><idno type="wicri:Area/Main/Exploration">002E98</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Novel aspects of transcriptional regulation in the winter survival and maintenance mechanism of poplar.</title><author><name sortKey="Ko, Jae 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(génétique)</term><term>Gènes de plante (MeSH)</term><term>Métabolisme glucidique (génétique)</term><term>Populus (croissance et développement)</term><term>Populus (génétique)</term><term>Régulation de l'expression des gènes végétaux (MeSH)</term><term>Réponse au choc froid (génétique)</term><term>Saisons (MeSH)</term><term>Tiges de plante (croissance et développement)</term><term>Tiges de plante (génétique)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>Transcription Factors</term></keywords><keywords scheme="MESH" qualifier="croissance et développement" xml:lang="fr"><term>Populus</term><term>Tiges de plante</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Adaptation, Physiological</term><term>Carbohydrate Metabolism</term><term>Cold-Shock Response</term><term>Plant Stems</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Plant Stems</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>Adaptation physiologique</term><term>Facteurs de transcription</term><term>Métabolisme glucidique</term><term>Populus</term><term>Réponse au choc froid</term><term>Tiges de plante</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Gene Expression Profiling</term><term>Gene Expression Regulation, Plant</term><term>Genes, Plant</term><term>Seasons</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Analyse de profil d'expression de gènes</term><term>Gènes de plante</term><term>Régulation de l'expression des gènes végétaux</term><term>Saisons</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Temperate woody plants have developed sophisticated winter survival and maintenance mechanisms that enable them to adapt rapidly to the annual cycle of environmental changes. Here, we demonstrate notable aspects of the transcriptional regulation adopted by poplar in winter/dormancy, employing biochemical and whole transcriptome analysis, and showing high levels of transcriptional activity in a broad spectrum of genes during the dormancy period. A total of 3237 probe sets upregulated more than threefold in winter/dormancy stems over summer/active-growth stems were identified. As expected, genes related to cold hardiness and defense were over-represented. Carbohydrate biosynthesis and transport-related genes were also actively expressed in winter/dormancy stems. Further biochemical analyses verified the dormancy/winter transcription phenotype. More than 60% of the winter upregulated transcription factors (TFs) were related to either biotic or abiotic stress. This finding substantiates that the major transcriptional network of winter/dormancy stems is related to stress tolerance, such as dehydration, cold tolerance and defense. Furthermore, during winter/dormancy, preferential expression of genes involved in cell wall biosynthesis or modification, indirect transcriptional regulation (RNA metabolism) and chromatin modification/remodeling were observed. Taken together, these findings show that regulation of gene expression associated with winter survival and maintenance extends beyond control by promoter-binding TFs to include regulation at the post-transcriptional and chromatin levels.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">21383024</PMID><DateCompleted><Year>2011</Year><Month>09</Month><Day>12</Day></DateCompleted><DateRevised><Year>2011</Year><Month>03</Month><Day>31</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1758-4469</ISSN><JournalIssue CitedMedium="Internet"><Volume>31</Volume><Issue>2</Issue><PubDate><Year>2011</Year><Month>Feb</Month></PubDate></JournalIssue><Title>Tree physiology</Title><ISOAbbreviation>Tree Physiol</ISOAbbreviation></Journal><ArticleTitle>Novel aspects of transcriptional regulation in the winter survival and maintenance mechanism of poplar.</ArticleTitle><Pagination><MedlinePgn>208-25</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1093/treephys/tpq109</ELocationID><Abstract><AbstractText>Temperate woody plants have developed sophisticated winter survival and maintenance mechanisms that enable them to adapt rapidly to the annual cycle of environmental changes. Here, we demonstrate notable aspects of the transcriptional regulation adopted by poplar in winter/dormancy, employing biochemical and whole transcriptome analysis, and showing high levels of transcriptional activity in a broad spectrum of genes during the dormancy period. A total of 3237 probe sets upregulated more than threefold in winter/dormancy stems over summer/active-growth stems were identified. As expected, genes related to cold hardiness and defense were over-represented. Carbohydrate biosynthesis and transport-related genes were also actively expressed in winter/dormancy stems. Further biochemical analyses verified the dormancy/winter transcription phenotype. More than 60% of the winter upregulated transcription factors (TFs) were related to either biotic or abiotic stress. This finding substantiates that the major transcriptional network of winter/dormancy stems is related to stress tolerance, such as dehydration, cold tolerance and defense. Furthermore, during winter/dormancy, preferential expression of genes involved in cell wall biosynthesis or modification, indirect transcriptional regulation (RNA metabolism) and chromatin modification/remodeling were observed. 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