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Instar-dependent systemic RNA interference response in Leptinotarsa decemlineata larvae

文献类型： 外文期刊

作者： Guo, Wen-Chao 1 ; Fu, Kai-Yun 1 ; Yang, Shuai 2 ; Li, Xiao-Xu 2 ; Li, Guo-Qing 1 ;

作者机构： 1.Nanjing Agr Univ, Coll Plant Protect, Educ Minist, Key Lab Integrated Management Crop Dis & Pests, Nanjing 210095, Jiangsu, Peoples R China

2.Xinjiang Acad Agr Sci, Dept Plant Protect, Urumqi 830091, Peoples R China

关键词： Leptinotarsa decemlineata;RNA interference efficiency;Dicer;Argonaute

期刊名称：PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY （ 影响因子：3.963； 五年影响因子：4.454 ）

ISSN：

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收录情况： SCI

摘要： RNA interference (RNAi) is a promising approach to control Leptinotarsa decemlineata. In this study, RNAi efficiency by double-stranded RNA (dsRNA) targeting S-adenosyl-L-homocysteine hydrolase (LdSAHase) was compared among L. decemlineata first- to fourth-instar larvae. Ingesting dsLdSAHase successfully decreased the target gene expression, caused lethality, inhibited growth and impaired pupation in an instar- and concentration-dependent manner. To study the role of Dicer2 and Argonaute2 genes in RNAi efficiency, we identified LdDcr2a, LdDcr2b, LdAgo2a and LdAgo2b. Their expression levels were higher in young larvae than those in old ones. Exposure to dsegfp for 6 h significantly elevated LdDcr2a, LdDcr2b, LdAgo2a and LdAgo2b mRNA levels in the first-, second-, third- and fourth-instar larvae. When the exposure periods were extended, however, the expression levels were gradually reduced. Continuous exposure for 72 h significantly repressed the expression of LdAgo2a and LdAgo2b in the first, second and third larval instars, and the four genes in final instars. Moreover, we found that dsLdSAHase-caused LdSAHase suppressions and larval mortalities were influenced by previous dsegfp exposure: 12 h of previous exposure increased LdSAHase silencing and mortality of the final instar larvae, whereas 72 h of exposure reduced LdSAHase silencing and mortality. Thus, it seems the activities of core RNAi-machinery proteins affect RNAi efficiency in L decemlineata. (C) 2015 Elsevier Inc. All rights reserved.

  • 相关文献

[1]Knockdown of juvenile hormone acid methyl transferase severely affects the performance of Leptinotarsa decemlineata (Say) larvae and adults. Fu, Kai-Yun,Li, Qian,Zhou, Li-Tao,Meng, Qing-Wei,Lu, Feng-Gong,Li, Guo-Qing,Guo, Wen-Chao.

[2]IDENTIFICATION AND HORMONE INDUCTION OF PUTATIVE CHITIN SYNTHASE GENES AND SPLICE VARIANTS IN Leptinotarsa decemlineata (SAY). Shi, Ji-Feng,Mu, Li-Li,Li, Guo-Qing,Guo, Wen-Chao.

[3]A putative Delta(1)-pyrroline-5-carboxylate synthetase involved in the biosynthesis of proline and arginine in Leptinotarsa decemlineata. Wan, Pin-Jun,Fu, Kai-Yun,Lu, Feng-Gong,Li, Guo-Qing,Guo, Wen-Chao.

[4]RNA interference suppression of the receptor tyrosine kinase Torso gene impaired pupation and adult emergence in Leptinotarsa decemlineata. Zhu, Tao-Tao,Meng, Qing-Wei,Li, Guo-Qing,Guo, Wen-Chao.

[5]Transcription response of three putative trehalase genes to hormonal stimulation in the Colorado potato beetle, Leptinotarsa decemlineata (Coleoptera: Chrysomelidae). Shi, Ji-Feng,Sun, Qiang-Kun,Mu, Li-Li,Li, Guo-Qing,Guo, Wen-Chao.

[6]Chlorantraniliprole susceptibility in leptinotarsa decemlineata in the north Xinjiang Uygur autonomous region in China. Jiang, Wei-Hua,Lu, Wei-Ping,Li, Guo-Qing,Guo, Wen-Chao,Xia, Zhen-Han,Fu, Wen-Jun.

[7]Physiological roles of trehalose in Leptinotarsa larvae revealed by RNA interference of trehalose-6-phosphate synthase and trehalase genes. Shi, Ji-Feng,Xu, Qing-Yu,Sun, Qiang-Kun,Meng, Qing-Wei,Mu, Li-Li,Li, Guo-Qing,Guo, Wen-Chao.

[8]Identification of ten mevalonate enzyme-encoding genes and their expression in response to juvenile hormone levels in Leptinotarsa decemlineata (Say). Li, Qian,Meng, Qing-Wei,Lu, Feng-Gong,Li, Guo-Qing,Guo, Wen-Chao.

[9]CHARACTERIZATION AND FUNCTIONAL STUDY OF A PUTATIVE JUVENILE HORMONE DIOL KINASE IN THE COLORADO POTATO BEETLE Leptinotarsa decemlineata (Say). Fu, Kai-Yun,Lu, Feng-Gong,Li, Guo-Qing,Guo, Wen-Chao.

[10]Leptinotarsa cap 'n' collar isoform C/Kelch-like ECH associated protein 1 signaling is critical for the regulation of ecdysteroidogenesis in the larvae. Sun, Qiang-Kun,Meng, Qing-Wei,Xu, Qing-Yu,Deng, Pan,Li, Guo-Qing,Guo, Wen-Chao.

[11]Characterization of two juvenile hormone epoxide hydrolases by RNA interference in the Colorado potato beetle. Lu, Feng-Gong,Fu, Kai-Yun,Li, Guo-Qing,Guo, Wen-Chao.

[12]Functions of nuclear receptor HR3 during larval-pupal molting in Leptinotarsa decemlineata (Say) revealed by in vivo RNA interference. Guo, Wen-Chao,Liu, Xin-Ping,Fu, Kai-Yun,Shi, Ji-Feng,Lu, Feng-Gong,Li, Guo-Qing,Guo, Wen-Chao.

[13]Response of the vacuolar ATPase subunit E to RNA interference and four chemical pesticides in Leptinotarsa decemlineata (Say). Fu, Kai-Yun,Lu, Feng-gong,Liu, Xin-ping,Li, Guo-Qing,Guo, Wen-Chao.

[14]Involvement of FTZ-F1 in the regulation of pupation in Leptinotarsa decemlineata (Say). Liu, Xin-Ping,Fu, Kai-Yun,Lu, Feng-Gong,Meng, Qing-Wei,Li, Guo-Qing,Guo, Wen-Chao.

[15]Insecticide resistance status of Colorado potato beetle (Coleoptera: Chrysomelidae) adults in Northern Xinjiang Uygur autonomous region. Jiang, Wei-Hua,Wang, Zhi-Tian,Xiong, Man-Hui,Lu, Wei-Ping,Liu, Ping,Li, Guo-Qing,Jiang, Wei-Hua,Wang, Zhi-Tian,Xiong, Man-Hui,Lu, Wei-Ping,Liu, Ping,Li, Guo-Qing,Guo, Wen-Chao.

[16]Nuclear receptor ecdysone-induced protein 75 is required for larval-pupal metamorphosis in the Colorado potato beetle Leptinotarsa decemlineata (Say). Guo, W-C.,Liu, X-P.,Fu, K-Y.,Shi, J-F.,Lu, F-G.,Li, G-Q.,Guo, W-C..

[17]Knockdown of a putative insulin-like peptide gene LdILP2 in Leptinotarsa decemlineata by RNA interference impairs pupation and adult emergence. Fu, Kai-Yun,Zhu, Tao-Tao,Li, Guo-Qing,Guo, Wen-Chao,Ahmat, Tursun.

[18]The subunit gene Ld alpha 1 of nicotinic acetylcholine receptors plays important roles in the toxicity of imidacloprid and thiamethoxam against Leptinotarsa decemlineata. Qu, Yang,Chen, Jinhua,Li, Chenge,Wang, Qiang,Han, Zhaojun,Jiang, Weihua,Guo, Wenchao.

[19]Novaluron ingestion causes larval lethality and inhibits chitin content in Leptinotarsa decemlineata fourth-instar larvae. Xu, Qing-Yu,Meng, Qing-Wei,Shi, Ji-Feng,Deng, Pan,Li, Guo-Qing,Guo, Wen-Chao. 2017

[20]RNA interference of a putative S-adenosyl-L-homocysteine hydrolase gene affects larval performance in Leptinotarsa decemlineata (Say). Zhou, Li-Tao,Jia, Shuang,Wan, Pin-Jun,Kong, Ye,Li, Guo-Qing,Guo, Wen-Chao,Ahmat, Tursun. 2013

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