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On-line Access: 2011-07-04

Received: 2010-08-10

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Crosschecked: 2011-06-09

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Journal of Zhejiang University SCIENCE B 2011 Vol.12 No.7 P.527-533


Construction and detection of expression vectors of microRNA-9a in BmN cells

Author(s):  Yong Huang, Quan Zou, Sheng-peng Wang, Shun-ming Tang, Guo-zheng Zhang, Xing-jia Shen

Affiliation(s):  Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, Jiangsu University of Science and Technology, Zhenjiang 212018, China, School of Information Science and Technology, Xiamen University, Xiamen 361005, China, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang 212018, China, Animal Science and Technology College, Henan University of Science and Technology, Luoyang 471003, China

Corresponding email(s):   shenxj63@yahoo.com.cn

Key Words:  miRNA-9a (miR-9a), EGFP gene, Bombyx mori N (BmN) Cells, Expression vector

Yong Huang, Quan Zou, Sheng-peng Wang, Shun-ming Tang, Guo-zheng Zhang, Xing-jia Shen. Construction and detection of expression vectors of microRNA-9a in BmN cells[J]. Journal of Zhejiang University Science B, 2011, 12(7): 527-533.

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author="Yong Huang, Quan Zou, Sheng-peng Wang, Shun-ming Tang, Guo-zheng Zhang, Xing-jia Shen",
journal="Journal of Zhejiang University Science B",
publisher="Zhejiang University Press & Springer",

%0 Journal Article
%T Construction and detection of expression vectors of microRNA-9a in BmN cells
%A Yong Huang
%A Quan Zou
%A Sheng-peng Wang
%A Shun-ming Tang
%A Guo-zheng Zhang
%A Xing-jia Shen
%J Journal of Zhejiang University SCIENCE B
%V 12
%N 7
%P 527-533
%@ 1673-1581
%D 2011
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.B1000296

T1 - Construction and detection of expression vectors of microRNA-9a in BmN cells
A1 - Yong Huang
A1 - Quan Zou
A1 - Sheng-peng Wang
A1 - Shun-ming Tang
A1 - Guo-zheng Zhang
A1 - Xing-jia Shen
J0 - Journal of Zhejiang University Science B
VL - 12
IS - 7
SP - 527
EP - 533
%@ 1673-1581
Y1 - 2011
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.B1000296

MicroRNAs (miRNAs) are small endogenous RNAs molecules, approximately 21–23 nucleotides in length, which regulate gene expression by base-pairing with 3′ untranslated regions (UTRs) of target mRNAs. However, the functions of only a few miRNAs in organisms are known. Recently, the expression vector of artificial miRNA has become a promising tool for gene function studies. Here, a method for easy and rapid construction of eukaryotic miRNA expression vector was described. The cytoplasmic actin 3 (A3) promoter and flanked sequences of miRNA-9a (miR-9a) precursor were amplified from genomic DNA of the silkworm (Bombyx mori) and was inserted into pCDNA3.0 vector to construct a recombinant plasmid. The enhanced green fluorescent protein (EGFP) gene was used as reporter gene. The Bombyx mori N (BmN) Cells were transfected with recombinant miR-9a expression plasmid and were harvested 48 h post transfection. Total RNAs of BmN cells transfected with recombinant vectors were extracted and the expression of miR-9a was evaluated by reverse transcriptase polymerase chain reaction (RT-PCR) and Northern blot. Tests showed that the recombinant miR-9a vector was successfully constructed and the expression of miR-9a with EGFP was detected.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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