Identifying water stress-response mechanisms in citrus by in silico transcriptome analysis
| Autor: | Vera Quecini, Marcos A. Gimenes, Vicente E. De Rosa, G. A. M. Torres |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
chemistry.chemical_classification
lcsh:QH426-470 In silico CitEST food and beverages data mining Computational biology Metabolism Biology environmental stress Amino acid Transcriptome lcsh:Genetics tolerance mechanisms chemistry Osmolyte Gene expression Botany Genetics Adaptation Molecular Biology Gene water deficit |
| Zdroj: | Genetics and Molecular Biology, Volume: 30, Issue: 3 Supplement, Pages: 888-905, Published: 2007 Genetics and Molecular Biology, Vol 30, Iss 3, Pp 888-905 (2007) Genetics and Molecular Biology v.30 n.3 suppl.0 2007 Genetics and Molecular Biology Sociedade Brasileira de Genética (SBG) instacron:SBG |
| ISSN: | 1415-4757 |
| DOI: | 10.1590/s1415-47572007000500018 |
| Popis: | Water deficit is one of the most critical environmental stresses to which plants are submitted during their life cycle. The evolutionary and economic performance of the plant is affected directly by reducing its survival in the natural environment and its productivity in agriculture. Plants respond to water stress with biochemical and physiological modifications that may be involved in tolerance or adaptation mechanisms. A great number of genes have been identified as transcriptionally regulated for water deficit. EST sequencing projects provide a significant contribution to the discovery of expressed genes. The identification and determination of gene expression patterns is important not only to understand the molecular bases of plant responses but also to improve water stress tolerance. In our citrus transcriptome survey we have attempted to identify homologs to genes known to be induced and regulated under water stress conditions. We have identified 89 transcripts whose deduced amino acid sequences share similarities with proteins involved in uptake and transport of water and ion, 34 similar to components of the osmolyte metabolism, 67 involved in processes of membranes and proteins protection and 115 homologs of reactive oxygen species scavenger. Many drought-inducible genes identified are known to be regulated by development, salt, osmotic and low temperature. Their possible roles in specific or general mechanisms of water stress citrus responses are discussed. |
| Databáze: | OpenAIRE |
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