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Identification of Novel miRNAs and miRNA Expression Profiling in Wheat Hybrid Necrosis

文献类型： 外文期刊

作者： Zhou, Jianping 1 ; Cheng, Yan 1 ; Yin, Meiqi 1 ; Yang, Ennian 2 ; Gong, Wenping 1 ; Liu, Cheng 1 ; Zheng, Xuelian 1 ; Den 1 ;

作者机构： 1.Univ Elect Sci & Technol China, Sch Life Sci & Technol, Chengdu 610054, Peoples R China

2.Sichuan Acad Agr Sci, Crop Res Inst, Chengdu 610066, Peoples R China

3.Sichuan Agr Univ, State Key Lab Plant Breeding & Genet, Chengdu 611130, Peoples R China

期刊名称：PLOS ONE （ 影响因子：3.24； 五年影响因子：3.788 ）

ISSN： 1932-6203

年卷期： 2015 年 10 卷 2 期

页码：

收录情况： SCI

摘要： MicroRNAs (miRNAs) play essential roles in a vast array of biological processes, including growth and development, defense against viral infection, and responses to environmental changes in plant. Wheat hybrid necrosis is an interesting genetic phenomenon observed frequency and it is lethal or semi lethal, resulting in gradual death or loss of productivity. However, the molecular basis and mechanisms associated with hybrid necrosis in wheat are still not well understood. Here, we report the population and expression profiles of miRNAs in wheat hybrid necrosis. We identified a total of 57 conserved miRNA families as well as 182 putative novel miRNAs. Expression profiling revealed that expression of 49 known miRNAs and 165 novel miRNAs was changed in hybrid necrosis. And the expression levels of some miRNAs and their predicated targets have been confirmed by qRT-PCR. These results indicate that these miRNAs, especially miR159, miR166, miR167 and miR5072 could be involved in the extensive regulation of gene expression in response to hybrid necrosis.

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