Document Detail


Transcriptome pathways unique to dehydration tolerant relatives of modern wheat.
MedLine Citation:
PMID:  19330365     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Among abiotic stressors, drought is a major factor responsible for dramatic yield loss in agriculture. In order to reveal differences in global expression profiles of drought tolerant and sensitive wild emmer wheat genotypes, a previously deployed shock-like dehydration process was utilized to compare transcriptomes at two time points in root and leaf tissues using the Affymetrix GeneChip(R) Wheat Genome Array hybridization. The comparison of transcriptomes reveal several unique genes or expression patterns such as differential usage of IP(3)-dependent signal transduction pathways, ethylene- and abscisic acid (ABA)-dependent signaling, and preferential or faster induction of ABA-dependent transcription factors by the tolerant genotype that distinguish contrasting genotypes indicative of distinctive stress response pathways. The data also show that wild emmer wheat is capable of engaging known drought stress responsive mechanisms. The global comparison of transcriptomes in the absence of and after dehydration underlined the gene networks especially in root tissues that may have been lost in the selection processes generating modern bread wheats.
Authors:
Neslihan Z Ergen; Jyothi Thimmapuram; Hans J Bohnert; Hikmet Budak
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-03-28
Journal Detail:
Title:  Functional & integrative genomics     Volume:  9     ISSN:  1438-7948     ISO Abbreviation:  Funct. Integr. Genomics     Publication Date:  2009 Aug 
Date Detail:
Created Date:  2009-06-24     Completed Date:  2009-08-24     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100939343     Medline TA:  Funct Integr Genomics     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  377-96     Citation Subset:  IM    
Affiliation:
Biological Sciences & Bioengineering Program, Faculty of Engineering and Natural Sciences, Sabanci University, Tuzla, Istanbul, Turkey.
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MeSH Terms
Descriptor/Qualifier:
Cluster Analysis
Crops, Agricultural / genetics
Droughts*
Gene Expression Profiling*
Gene Expression Regulation, Plant
Genotype
Humans
Microarray Analysis
Molecular Sequence Data
Oligonucleotide Array Sequence Analysis
Phenotype
Proline / metabolism
Stress, Physiological / genetics*
Triticum / anatomy & histology,  genetics*,  metabolism
Chemical
Reg. No./Substance:
147-85-3/Proline

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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