Arid
DOI10.1016/j.ibmb.2013.12.008
Identification, functional characterization and phylogenetic analysis of double stranded RNA degrading enzymes present in the gut of the desert locust, Schistocerca gregaria
Wynant, Niels; Santos, Dulce; Verdonck, Rik; Spit, Jornt; Van Wielendaele, Pieter; Vanden Broeck, Jozef
通讯作者Wynant, Niels
来源期刊INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY
ISSN0965-1748
EISSN1879-0240
出版年2014
卷号46页码:1-8
英文摘要

RNA interference (RNAi) has become a widely used reverse genetics tool in eukaryotes and holds great potential to contribute to the development of novel strategies for insect pest control. While previous studies clearly demonstrated that injection of dsRNA into the body cavity of the desert locust, Schistocerca gregaria, is highly effective to induce gene silencing effects, we observed that the RNAi response is much less sensitive to orally delivered dsRNA. In line with this, we report on the presence of a potent dsRNA degrading activity in the midgut juice. Four different dsRNase sequences that belong to the DNA/RNA Non-specific Nuclease superfamily were retrieved from a transcriptome database of the desert locust. Surprisingly, we have found that, in the publicly available eukaryote nucleotide sequence databases, the presence of this group of enzymes is restricted to insects and crustaceans. Nonetheless, phylogenetic analyses predict a common origin of these enzymes with the Endonuclease G (EndoG) Non-specific Nucleases that display a widespread taxonomic distribution. Moreover, in contrast to the Sg-endoG transcript, the four Sg-dsRNase transcripts appear to be specifically expressed in the gut. Finally, by means of RNAi, we provide evidence for an important contribution of dsRNase2 to the dsRNA degrading activity that is present in the gut lumen of S. gregaria. (C) 2014 Elsevier Ltd. All rights reserved.


英文关键词Digestion dsRNA dsRNase Endonuclease G (endoG) Insect Nuclease RNA interference (RNAi) White spot syndrome virus
类型Article
语种英语
国家Belgium
收录类别SCI-E
WOS记录号WOS:000333001800001
WOS关键词INTERFERENCE ; GENES ; INGESTION ; SILKWORM ; VIRUS
WOS类目Biochemistry & Molecular Biology ; Entomology
WOS研究方向Biochemistry & Molecular Biology ; Entomology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/182618
作者单位Katholieke Univ Leuven, Mol Dev Physiol & Signal Transduct, B-3000 Louvain, Belgium
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GB/T 7714
Wynant, Niels,Santos, Dulce,Verdonck, Rik,et al. Identification, functional characterization and phylogenetic analysis of double stranded RNA degrading enzymes present in the gut of the desert locust, Schistocerca gregaria[J],2014,46:1-8.
APA Wynant, Niels,Santos, Dulce,Verdonck, Rik,Spit, Jornt,Van Wielendaele, Pieter,&Vanden Broeck, Jozef.(2014).Identification, functional characterization and phylogenetic analysis of double stranded RNA degrading enzymes present in the gut of the desert locust, Schistocerca gregaria.INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY,46,1-8.
MLA Wynant, Niels,et al."Identification, functional characterization and phylogenetic analysis of double stranded RNA degrading enzymes present in the gut of the desert locust, Schistocerca gregaria".INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 46(2014):1-8.
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