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Comparative transcript profiling of TCP family genes provide insight into gene functions and diversification in rice and Arabidopsis

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Title Comparative transcript profiling of TCP family genes provide insight into gene functions and diversification in rice and Arabidopsis
 
Creator Sharma, Rita
Kapoor, Meenu
Tyagi, Akhilesh K.
Kapoor, Sanjay
 
Subject Development
expression
microarray
Stress
transcription factor
 
Description Plant-specific TCP transcription factor family has been implicated in diverse aspects of growth and development. Rice and Arabidopsis genomes encode 26 and 24 TCP family genes, respectively. In this study, we have performed an inclusive analysis of their expression during 21 and 18 stages of development in rice and Arabidopsis, respectively. The assorted patterns of expression, exhibited by TCP family genes,
provide an evidence for spatiotemporal regulation of their relative abundance throughout plant development. Further profiling of rice genes
in three sub-stages of early panicle development revealed differential accumulation of nine genes during panicle initiation and organ
development. QPCR-based expression profiling of selected rice genes, during four stages of anther, suggested their involvement in early anther development as well. Eleven genes of rice and seven of Arabidopsis were differentially expressed in response to three abiotic stress treatments viz., cold, dehydration and salt. In silico analysis of 5' regulatory regions of differentially expressed genes revealed the presence of
previously characterized cis-regulatory elements. Duplications seem to have played major role in diversification of TCP family genes with 14 genes of rice and 10 of Arabidopsis lying on duplicated segments of the respective genomes. Most of the duplicated genes exhibited varied
expression patterns. The knowledge obtained in this study will be useful for selection and assessment of the functions of individual genes using reverse genetics approaches.
The project had been
funded by the Department of Biotechnology, Government of
India.
 
Date 2014-02-24T09:42:48Z
2014-02-24T09:42:48Z
2010
21 November 2010
 
Type Article
 
Identifier J. Plant Mol. Biol. Biotechnol., 1(1): 24-38
http://hdl.handle.net/123456789/160
 
Language en
 
Publisher Academy Journals