Abstract
The study of abiotic stress response of plants is important because they have to cope with environmental changes to survive. The plant genomes have evolved to meet environmental challenges. Salt, temperature, and drought are the main abiotic stresses. The tolerance and response to stress vary differently in plants. The idea was to analyze the genes showing differential expression under abiotic stresses. There are many pathways connecting the perception of external stimuli to cellular responses. In plants, these pathways play an important role in the transduction of abiotic stresses. In the present study, the gene expression data have been analyzed for their involvement in different steps of signaling pathways. The conserved genes were analyzed for their role in each pathway. The functional annotations of these genes and their response under abiotic stresses in other plant species were also studied. The enzymes of signal pathways, showing similarity with conserved genes, were analyzed for their role in different abiotic stresses. Our findings will help to understand the expression of genes in response to various abiotic stresses. These genes may be used to study the response of different abiotic stresses in other plant species and the molecular basis of stress tolerance.
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Acknowledgments
We would like to thank C Robin Buell who have submitted her experiments in GEO database of NCBI and made them freely available to the scientific community. One of the authors (Sanchita) is thankful to CSIR, New Delhi, India for CSIR-SRF fellowship.
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Handling Editor: Bhumi Nath Tripathi
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Sanchita, Dhawan, S.S. & Sharma, A. Analysis of differentially expressed genes in abiotic stress response and their role in signal transduction pathways. Protoplasma 251, 81–91 (2014). https://doi.org/10.1007/s00709-013-0528-5
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DOI: https://doi.org/10.1007/s00709-013-0528-5