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RNA interference suppression of the receptor tyrosine kinase Torso gene impaired pupation and adult emergence in Leptinotarsa decemlineata

文献类型： 外文期刊

作者： Zhu, Tao-Tao 1 ; Meng, Qing-Wei 1 ; Guo, Wen-Chao 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;Torso;Metamorphosis;20-Hydroxyecdysone;Juvenile hormone

期刊名称：JOURNAL OF INSECT PHYSIOLOGY （ 影响因子：2.354； 五年影响因子：3.045 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： In Drosophila melanogaster prothoracic gland (PG) cells, Torso mediates prothoracicotropic hormone (PTTH)-triggered mitogen activated protein kinase (MAPK) pathway (consisting of four core components Ras, Raf, MEK and ERK) to stimulate ecdysteroidogenesis. In this study, LdTorso, LdRas, LdRaf and LdERK were cloned in Leptinotarsa decemlineata. The four genes were highly or moderately expressed in the larval prothoracic glands. At the first- to third-instar stages, their expression levels were higher just before and right after the molt, and were lower in the mid instars. At the fourth-instar stage, their transcript levels were higher before prepupal stage. RNA interference-mediated knockdown of LdTorso delayed larval development, increased pupal weight, and impaired pupation and adult emergence. Moreover, knockdown of LdTorso decreased the mRNA levels of LdRas, LdRaf and LdERK, repressed the transcription of two ecdysteroidogenesis genes (LdPHM and LdDIB), lowered 20E titer, and downregulated the expression of several 20E-response genes (LdEcR, LdUSP, LdHR3 and LdFTZ-F1). Furthermore, silencing of LdTorso induced the expression of a JH biosynthesis gene LdJHAMT, increased JH titer, and activated the transcription of a JH early-inducible gene LdKr-h1. Thus, our results suggest that Torso transduces PTTH-triggered MAPK signal to regulate ecdysteroidogenesis in the PGs in a non-drosophiline insect. (C) 2015 Elsevier Ltd. All rights reserved.

  • 相关文献

[1]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.

[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]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.

[4]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.

[5]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..

[6]Transcription changes of a putative trehalose-6-phosphate synthase gene in response to hormone stimulation in Leptinotarsa decemlineata (Say). Shi, Ji-Feng,Xu, Qing-Yu,Li, Guo-Qing,Guo, Wen-Chao. 2016

[7]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.

[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]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.

[10]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.

[11]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.

[12]Instar-dependent systemic RNA interference response in Leptinotarsa decemlineata larvae. Guo, Wen-Chao,Fu, Kai-Yun,Li, Guo-Qing,Guo, Wen-Chao,Yang, Shuai,Li, Xiao-Xu.

[13]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.

[14]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.

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[17]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.

[18]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.

[19]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.

[20]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

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