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Cloning and mRNA expression pattern analysis under low temperature stress of EAAP gene in Dongmu-70 rye

机译:东牧70黑麦EAAP基因低温胁迫下的克隆及mRNA表达模式分析

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This research cloned endochitinase-antifreeze protein precursor?(EAPP) gene of Dong-mu 70 rye (Secale cereale) by designing special primers according to Genbank’s?EAPP?gene sequence, and analyzing the influence of low temperature stress on the expression of mRNA with RT-PCR. The results indicated that theEAPP’s full length coding of Dong-mu-70 rye was 1085 bp, while the homology of its amino acid and that of?Hordeum vulgare?and?Triticum aestivum?was much higher (95 and 91%, respectively). The mRNA of the?EAPP?gene in Dong-mu 70 rye was expressed in roots under normal temperature, and was most active in the leaves. When stressed at a low temperature of 4°C, remarkable improvements were shown in mRNA expression in the root and stems, and the maximum expression appeared 24 h after treatment and decreased afterwards.
机译:本研究通过根据Genbank的“ EAPP”基因序列设计特殊引物,克隆了冬木70黑麦的内切几丁质内切酶-抗冻蛋白前体基因(EAPP),并分析了低温胁迫对mRNA表达的影响。 RT-PCR。结果表明,EAPP的Dong-mu-70黑麦的全长编码为1085 bp,而其氨基酸与“大麦”和“普通小麦”的氨基酸同源性更高(分别为95%和91%)。东牧70黑麦中“ EAPP”基因的mRNA在常温下在根中表达,并且在叶片中最活跃。当在4°C的低温下胁迫时,根和茎中的mRNA表达显示出显着的改善,最大表达出现在处理后24小时,随后下降。

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