Genome-wide transcriptional response of Populus euphratica to long-term drought stress.
Identifieur interne : 002A54 ( Main/Exploration ); précédent : 002A53; suivant : 002A55Genome-wide transcriptional response of Populus euphratica to long-term drought stress.
Auteurs : Dong-Hui Yan [République populaire de Chine] ; Trevor Fenning ; Sha Tang ; Xinli Xia ; Weilun YinSource :
- Plant science : an international journal of experimental plant biology [ 1873-2259 ] ; 2012.
Descripteurs français
- KwdFr :
- Adaptation physiologique (génétique), Arbres (MeSH), Chine (MeSH), Eau (MeSH), Facteurs de transcription (génétique), Facteurs de transcription (métabolisme), Gènes de plante (MeSH), Génome végétal (MeSH), Populus (génétique), Populus (métabolisme), Populus (physiologie), Protéines du choc thermique (génétique), Protéines du choc thermique (métabolisme), Protéines végétales (génétique), Protéines végétales (métabolisme), Régulation de l'expression des gènes végétaux (MeSH), Stress physiologique (génétique), Sécheresses (MeSH), Transcription génétique (MeSH).
- MESH :
- génétique : Adaptation physiologique, Facteurs de transcription, Populus, Protéines du choc thermique, Protéines végétales, Stress physiologique.
- métabolisme : Facteurs de transcription, Populus, Protéines du choc thermique, Protéines végétales.
- physiologie : Populus.
- Arbres, Chine, Eau, Gènes de plante, Génome végétal, Régulation de l'expression des gènes végétaux, Sécheresses, Transcription génétique.
- Wicri :
- geographic : République populaire de Chine.
English descriptors
- KwdEn :
- Adaptation, Physiological (genetics), China (MeSH), Droughts (MeSH), Gene Expression Regulation, Plant (MeSH), Genes, Plant (MeSH), Genome, Plant (MeSH), Heat-Shock Proteins (genetics), Heat-Shock Proteins (metabolism), Plant Proteins (genetics), Plant Proteins (metabolism), Populus (genetics), Populus (metabolism), Populus (physiology), Stress, Physiological (genetics), Transcription Factors (genetics), Transcription Factors (metabolism), Transcription, Genetic (MeSH), Trees (MeSH), Water (MeSH).
- MESH :
- chemical , genetics : Heat-Shock Proteins, Plant Proteins, Transcription Factors.
- chemical , metabolism : Heat-Shock Proteins, Plant Proteins, Transcription Factors.
- geographic : China, Water.
- genetics : Adaptation, Physiological, Populus, Stress, Physiological.
- metabolism : Populus.
- physiology : Populus.
- Droughts, Gene Expression Regulation, Plant, Genes, Plant, Genome, Plant, Transcription, Genetic, Trees.
Abstract
Populus euphratica is native to semi-arid regions of the Xinjiang Uyghur Autonomous Region of China, and studying its drought responses will greatly increase the understanding of how trees acclimate to drought. Water was withheld for seven weeks in four different drought stress treatments, with regime 1 being the least drought stressed and regime 4 being the most, and the poplar's transcriptional profiles examined with Affymetrix Poplar GeneChip microarrays. The number of significantly up or down transcriptional changes increased with the severity of drought stress, with regime 1, 2, 3 and 4 showing 952, 1354, 2138 and 2360 altered transcripts, respectively. Only 277 of these were found in common across all four regimes, while 1938 transcripts were found to be unique to the individual treatments. Genes with altered transcript abundance included members of the transcription factor families AP2/EREPB, bZIP, NAC, NF-Y, WRKY, MYB and Homeobox, as well as genes for the small HSP, HSP70 and HSP90 heat shock protein families. Analysis of the transcript data from these experiments indicated that P. euphratica activates specific regulatory pathways according to the degree of drought stress it receives. These results provide important insights into the molecular mechanisms underpinning the drought stress responses of poplar, as well as providing candidates for future experimentation.
DOI: 10.1016/j.plantsci.2012.06.005
PubMed: 22920996
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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Water was withheld for seven weeks in four different drought stress treatments, with regime 1 being the least drought stressed and regime 4 being the most, and the poplar's transcriptional profiles examined with Affymetrix Poplar GeneChip microarrays. The number of significantly up or down transcriptional changes increased with the severity of drought stress, with regime 1, 2, 3 and 4 showing 952, 1354, 2138 and 2360 altered transcripts, respectively. Only 277 of these were found in common across all four regimes, while 1938 transcripts were found to be unique to the individual treatments. Genes with altered transcript abundance included members of the transcription factor families AP2/EREPB, bZIP, NAC, NF-Y, WRKY, MYB and Homeobox, as well as genes for the small HSP, HSP70 and HSP90 heat shock protein families. Analysis of the transcript data from these experiments indicated that P. euphratica activates specific regulatory pathways according to the degree of drought stress it receives. 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Water was withheld for seven weeks in four different drought stress treatments, with regime 1 being the least drought stressed and regime 4 being the most, and the poplar's transcriptional profiles examined with Affymetrix Poplar GeneChip microarrays. The number of significantly up or down transcriptional changes increased with the severity of drought stress, with regime 1, 2, 3 and 4 showing 952, 1354, 2138 and 2360 altered transcripts, respectively. Only 277 of these were found in common across all four regimes, while 1938 transcripts were found to be unique to the individual treatments. Genes with altered transcript abundance included members of the transcription factor families AP2/EREPB, bZIP, NAC, NF-Y, WRKY, MYB and Homeobox, as well as genes for the small HSP, HSP70 and HSP90 heat shock protein families. Analysis of the transcript data from these experiments indicated that P. euphratica activates specific regulatory pathways according to the degree of drought stress it receives. These results provide important insights into the molecular mechanisms underpinning the drought stress responses of poplar, as well as providing candidates for future experimentation.</AbstractText><CopyrightInformation>Copyright © 2012 Elsevier Ireland Ltd. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Yan</LastName><ForeName>Dong-Hui</ForeName><Initials>DH</Initials><AffiliationInfo><Affiliation>College of Biological Sciences and Technology, National Engineering Laboratory for Tree Breeding, Beijing Forestry University, Beijing 100083, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Fenning</LastName><ForeName>Trevor</ForeName><Initials>T</Initials></Author><Author ValidYN="Y"><LastName>Tang</LastName><ForeName>Sha</ForeName><Initials>S</Initials></Author><Author ValidYN="Y"><LastName>Xia</LastName><ForeName>Xinli</ForeName><Initials>X</Initials></Author><Author ValidYN="Y"><LastName>Yin</LastName><ForeName>Weilun</ForeName><Initials>W</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. 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name="République populaire de Chine"><noRegion><name sortKey="Yan, Dong Hui" sort="Yan, Dong Hui" uniqKey="Yan D" first="Dong-Hui" last="Yan">Dong-Hui Yan</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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