Discovery and characterization of conserved and novel microRNAs from blunt snout bream (&ITMegalobrama amblycephala&IT) by deep sequencing

文献类型： 外文期刊

第一作者： Huang, Yong

作者： Huang, Yong;Xiong, Jianli;Gao, Xiao Chan;Ren, Hong Tao;Gong, Wangbao

作者机构：

关键词： MicroRNA; Megalobrama amblycephala; Deep sequencing; qRT-PCR; Target gene

期刊名称：GENE （ 影响因子：3.688； 五年影响因子：3.329 ）

ISSN： 0378-1119

年卷期： 2018 年 654 卷

页码：

收录情况： SCI

摘要： MicroRNAs (miRNAs) are short, single stranded RNA molecules with approximately 22 nts in length, which regulate the stability and translation of messenger RNAs in several organisms. To increase the repertoire of miRNAs characterized in M. amblycephala, we used the deep sequencing technology to sequence a small RNA library using pooled RNA sample isolated from the 4 different tissues of M. amblycephala. A total of 309 conserved miRNAs that originated from 131 miRNA families were detected. 15 novel candidates miRNA were identified. Randomly selected 6 miRNAs were analyzed by stem-loop qRT-PCR and differential expression patterns were observed in 6 different tissues of M. amblycephala. Furthermore, the potential targets were predicted. GO analysis showed that most of the targets were involved in a broad range of physiological functions including fish growth, development, metabolism, stress responses and so on. Overall, our results significantly increased the number of novel miRNAs in M. amblycephala, which should be useful for further investigation into the role of miRNAs in regulating diverse biological processes.

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