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Genome-wide survey and expression analysis suggest diverse roles of glutaredoxin gene family members during development and response to various stimuli in rice

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Title Genome-wide survey and expression analysis suggest diverse roles of glutaredoxin gene family members during development and response to various stimuli in rice
 
Creator Garg, Rohini
Jhanwar, Shalu
Tyagi, Akhilesh K.
Jain, Mukesh
 
Subject Rice
Genome-Wide Survey
Expression Analysis
Glutaredoxin Gene Family
Stimuli
 
Description Glutaredoxins (GRXs) are glutathione-dependent oxidoreductase enzymes involved in a variety of cellular processes. In this study, our analysis revealed the presence of 48 genes encoding GRX proteins in the rice genome. GRX proteins could be classified into four classes, namely CC-, CGFS-, CPYC- and GRL-type, based on phylogenetic analysis. The classification was supported with organization of predicted conserved putative motifs in GRX proteins. We found that expansion of this gene family has occurred largely via whole genome duplication events in a species-specific manner. We explored rice oligonucleotide array data to gain insights into the function of GRX gene family members during various stages of development and in response to environmental stimuli. The comprehensive expression analysis suggested diverse roles of GRX genes during growth and development in rice. Some of the GRX genes were expressed in specific organs/developmental stages only. The expression of many of rice GRX genes was influenced by various phytohormones, abiotic and biotic stress conditions, suggesting an important role of GRX proteins in response to these stimuli. The identification of GRX genes showing differential expression in specific tissues or in response to environmental stimuli provide a new avenue for in-depth characterization of selected genes of importance.
This work was supported by the Department of
Biotechnology, Government of India, New Delhi, under the Innovative Young Biotechnologists Award scheme and core grant from NIPGR to M.J.
 
Date 2014-02-20T09:49:39Z
2014-02-20T09:49:39Z
2010
14 September 2010
 
Type Article
 
Identifier DNA Res., 17(6): 353-367
http://hdl.handle.net/123456789/144
 
Language en
 
Publisher Oxford University Press