Drought is a worldwide problem, constraining global crop production and quality seriously. Water drives agricultural production in many parts of the world. Two genes from Triticum asetivum, were isolated under drought conditions. These drought responsive genes selected for expressional analyses can be classified into two groups. DHN gene with length 360 bp belong to the first group includes functional proteins already known to be involved in the response to water. DREB2 transcription factor gene with length 1256 bp belong to the second group that comprises protein factors involved in the regulation of signal transduction and gene expression.
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