Hormone Signaling Regulates Nymphal Diapause in Laodelphax striatellus (Hemiptera: Delphacidae)
文献类型： 外文期刊
作者： Zhai, Yifan 1 ; Zhang, Zhiming 2 ; Gao, Huanhuan 1 ; Chen, Hao 1 ; Sun, Meng 1 ; Zhang, Wenqing 3 ; Yu, Yi 1 ; Zheng, Li 1 ;
作者机构： 1.Shandong Acad Agr Sci, Inst Plant Protect, Jinan 250100, Peoples R China
2.Henan Agr Univ, Collage Forestry, Zhengzhou 450001, Henan, Peoples R China
3.Sun Yat Sen Univ, State Key Lab Biocontrol, Guangzhou 510275, Guangdong, Peoples R China
4.Sun Yat Sen Univ, Sch Life Sci, Guangzhou 510275, Guangdong, Peoples R China
期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.379； 五年影响因子：5.133 ）
ISSN： 2045-2322
年卷期： 2017 年 7 卷
页码：
收录情况： SCI
摘要： Diapause is a physiological adaptation that allows an organism to survive adverse environmental conditions. Diapause occurs at a specific developmental stage in each species. There are few reports regarding the molecular regulatory mechanism of nymphal diapause in Laodelphax striatellus, which is an important graminaceous crop pest. Our previous studies identified the conditions for nymphal diapause in this species. Here, we combined RNA sequencing transcriptomics and quantitative proteomic analyses to identify nymphal diapause-related genes and proteins. The analysis of differentially regulated genes identified four gene/protein pairs that were synchronously up-regulated, and six gene/protein pairs that were synchronously down-regulated, suggesting that these genes may regulate nymphal diapause. The up-regulated gene juvenile hormone acid methyl transferase (JHAMT) and the down-regulated gene cytochrome P450 monooxygenase (CYP314A1, Shd) were chosen for further functional studies. After knocking-down of LsJHAMT and LsShd in vivo by RNA interference, the titer of JH III and 20E decreased significantly, and the duration of the nymphal development period was severely altered. Thus LsJHAMT and LsShd regulated JH III and 20E titers in the hemolymph to control the nymphal diapause status. This study may lead to new information on the regulation nymphal diapause of this important agricultural insect pest.
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