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Int. J. Mol. Sci. 2012, 13(7), 8126-8141; doi:10.3390/ijms13078126

Elongation Factor 1β' Gene from Spodoptera exigua: Characterization and Function Identification through RNA Interference

1
Hangzhou Key Laboratory of Animal Adaptation and Evolution, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 310036, China
2
Zhejiang Institute of Subtropical Crops, Wenzhou, Zhejiang 325005, China
*
Author to whom correspondence should be addressed.
Received: 29 April 2012 / Revised: 13 June 2012 / Accepted: 18 June 2012 / Published: 29 June 2012
(This article belongs to the Section Biochemistry, Molecular Biology and Biophysics)
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Abstract

Elongation factor (EF) is a key regulation factor for translation in many organisms, including plants, bacteria, fungi, animals and insects. To investigate the nature and function of elongation factor 1β' from Spodoptera exigua (SeEF-1β'), its cDNA was cloned. This contained an open reading frame of 672 nucleotides encoding a protein of 223 amino acids with a predicted molecular weight of 24.04 kDa and pI of 4.53. Northern blotting revealed that SeEF-1β' mRNA is expressed in brain, epidermis, fat body, midgut, Malpighian tubules, ovary and tracheae. RT-PCR revealed that SeEF-1β' mRNA is expressed at different levels in fat body and whole body during different developmental stages. In RNAi experiments, the survival rate of insects injected with SeEF-1β' dsRNA was 58.7% at 36 h after injection, which was significantly lower than three control groups. Other elongation factors and transcription factors were also influenced when EF-1β' was suppressed. The results demonstrate that SeEF-1β' is a key gene in transcription in S. exigua. View Full-Text
Keywords: elongation factor; cloning; expression pattern; RNAi; Spodoptera exigua elongation factor; cloning; expression pattern; RNAi; Spodoptera exigua
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Zhao, L.-N.; Qin, Z.; Wei, P.; Guo, H.-S.; Dang, X.-L.; Wang, S.-G.; Tang, B. Elongation Factor 1β' Gene from Spodoptera exigua: Characterization and Function Identification through RNA Interference. Int. J. Mol. Sci. 2012, 13, 8126-8141.

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