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Identification and profiling of growth-related microRNAs of the swimming crab Portunus trituberculatus by using Solexa deep sequencing

文献类型： 外文期刊

作者： Ren, Xianyun 1 ; Cui, Yanting 2 ; Gao, Baoquan 2 ; Liu, Ping 2 ; Li, Jian 2 ;

作者机构： 1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Minist Agr, Key Lab Sustainable Utilizat Marine Fisheries Res, Qingdao, Peoples R China

2.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Minist Agr, Key Lab Sustainable Utilizat Marine Fisheries Res, Qingdao, Peoples R China; Qingdao Natl Lab Marine Sci & Technol, Funct Lab Marine Fisheries Sci & Food Prod Proc, Qingdao, Peoples R China

关键词： MicroRNA; Portunus trituberculatus; Next-generation sequencing; Growth-related

期刊名称：MARINE GENOMICS （ 影响因子：1.71； 五年影响因子：1.969 ）

ISSN： 1874-7787

年卷期： 2016 年 28 卷

页码：

收录情况： SCI

摘要： MicroRNAs (miRNAs) are a class of endogenous small non-coding RNAs that regulate gene expression by post transcriptional repression of mRNAs. The swimming crab Portunus trituberculatus is one of the most important crustacean species for aquaculture in China. However, to date no miRNAs have been reported to for modulating growth in P. trituberculatus. To investigate miRNAs involved in the growth of this species, we constructed six small RNA libraries for big individuals (Ms) and small individuals (SIs) from a highly inbred family. Six mixed RNA pools of five tissues (eyestalk, gill, heart, hepatopancreas, and muscle) were obtained. By aligning sequencing data with those for known miRNAs, a total of 404 miRNAs, including 339 known and 65 novel miRNAs, were identified from the six libraries. MiR-100 and miR-276a-3p were among the most prominent miRNA species. We identified seven differentially expressed miRNAs between the BIs and SIs, which were validated using real-time PCR. Preliminary analyzes of their putative target genes and GO and KEGG pathway analyzes showed that these differentially expressed miRNAs could play important roles in global transcriptional depression and cell differentiation of P. trituberculatus. This study reveals the first miRNA profile related to the body growth of P. trituberculatus, which would be particularly useful for crab breeding programs. (C) 2016 Elsevier B.V. All rights reserved.

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