Comparative analysis of miRNA expression profiles in transgenic and non-transgenic rice using miRNA-Seq

文献类型： 外文期刊

第一作者： Peng, Cheng

作者： Peng, Cheng;Chen, Xiaoyun;Wang, Xiaofu;Xu, Xiaoli;Wei, Wei;Xu, Junfeng;Peng, Cheng;Chen, Xiaoyun;Wang, Xiaofu;Xu, Xiaoli;Wei, Wei;Xu, Junfeng;Wang, Congmao

作者机构：

期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.379； 五年影响因子：5.133 ）

ISSN： 2045-2322

年卷期： 2018 年 8 卷

页码：

收录情况： SCI

摘要： Safety assessment for genetically modified organisms (GMOs) is required before their release. To date, miRNAs that play important roles in eukaryotic gene regulation have not been considered in the current assessment system. In this study, we identified 6 independent Bt and EPSPS GM rice lines using PCR and immune strip. We analyzed the expression levels of Cry1Ac and EPSPS using quantitative real-time PCR and western blot. Further, miRNAs from the developing seeds of the 6 GM rice lines and the wild-type line were investigated using deep sequencing and bioinformatic approaches. Although these GM lines have different types of integration sites, copy numbers, and levels of gene expression, 21 differentially expressed miRNAs have been found compared to wild type. There is no correlation between transgenic protein expression level and the quantity of differentially expressed miRNAs. This study provides useful data about the miRNA composition of GM plants, and it might be helpful for future risk assessments of miRNA-based GM plants.

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