论文摘要
Non-coding RNAs mediate important epigenetic regulation in various processes of plants. Long non-coding RNAs（lncRNAs） are classes of ncRNAs with lengths greater than 200 nt without or with little protein-coding potential. MicroRNAs（mi RNAs） which are approximately 21 nucleotides endogenous ncRNAs, have diverse regulatory roles across kingdoms. LncRNAs as the endogenous target mimic（eTM） for mi RNAs have been reported to be sponge in the regulation of miRNA expression. However, systematical identifying eTMs in plants has yet limited. In this study, we developed a computational approach（e TMplant） to identify eTMs in diverse plants using a Python script, which can be downloaded from https://github.com/ztpub. Based on the method, we can effectively identify 2,728 eTMs for 570 miRNAs in 28 plant species reported in GreeNC and PNRD databases. The e TMs of mi R156 and mi R399 were found to be widely distribution in these species, indicating the conservation of the eTMs in plant kingdom. Sequence alignments of 10 eTMs of miR156 in 8 species showed that their miRNA binding sites were well conserved, while the three nucleotides of the bulge region in eTMs were not conservation. And qRT-PCR analysis validated one of the lncRNAs as the ‘decoy’ of miR399 in sacred lotus. This work will provide recourses for further studies to identify the eTMs in the regulation of plant development.
论文目录
文章来源
类型: 国内会议
作者: 胡继宏,Tao Zeng,Hongyuan Zhang,Yi Ding
来源: 2019年中国作物学会学术年会 2019-10-27
年度: 2019
分类: 基础科学
专业: 生物学,生物学
单位: Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute, Chinese Academy of Agricultural SciencesState Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan UniversityKey Laboratory of Systems Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences
分类号: Q943.2
DOI: 10.26914/c.cnkihy.2019.016062
页码: 127
总页数: 1
文件大小: 758k
下载量: 7
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