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Pea leafminer Liriomyza huidobrensis (Diptera: Agromyzidae) uses vibrational duets for efficient sexual communication

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Insect Science 2019年第3期26卷 510-522页

作者： Jin Ge Jia-Ning Wei Ding-Jie Zhang Chun Hi De-Zhi Zheng Le Kang State key laboratory of Integrated Management of pest Insects and Rodents Institute of Zoology Chinese Academy of Sciences Beijing China University of Chinese Academy of Sciences Beijing China key laboratory of Zoological Systematics and Evolution Institute of Zoology Chinese Academy of Sciences Beijing China School of Instrumentation Science & Optoelectronics engineering Beihang University Beijing China Beijing Institutes of Life Science Chinese Academy of Sciences Beijing China

The pea leafminer (Liriomyza huidobrensis) is a notorious pest of vegetables and ornamental plants worldwide. Despite a large number of studies on its biology and ecology, the courtship behavior and sexual communication of this species remain unclear. Here, we studied vibrational communication in the sexual interaction of the pea leafminer. On host plant leaves, females and males behaviorally displayed the bobbing-quivering alternation, which finally led to copulation. Moreover, records of laser vibrometry revealed threesignal duets underlying the behavioral alternation. Sexually mature males spontaneously emitted calls (MCs) to initiate the duets. The females rapidly responded to MCs by emitting replies (FRs) that are longer in duration. The FRs further triggered male replies (MRs) in their search for potential partners. Leafminer-produced vibrational signals convey efficient information to partners and generate pair formation on stretched substrates, such as plant leaves and nylon mesh, but cannot elicit responses on dense substrates, such as glass and plastic. Vibrational playbacks of both MCs and FRs can elicit replies in females and males, respectively. This study completely characterizes substrate-borne vibrational duets in a dipteran insect. The discovery of vibrational sex signals in the pea leafminer provides new insights for the development of novel approaches to control the pest and its relative species.

关键词： biotremology courtship behavior Liriomyza vibrational communication

Study on Fungi Belonging to Fusarium Link in Ningxia Hui Autonomous Region

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Plant Diseases and pests 2012年第2期3卷 6-8页

作者： Ruiqing SHEN Ping ZHANG Chengjin GUO Lirong ZHANG Pingzhi KANG Institute of Plant Protection Ningxia Academy of Agriculture and Forestry Sciences Ningxia key laboratory for Plant Disease and pest control Department of Biological engineering Ningxia Vocational Technical College

[Objective]This paper was to identify fungi belonging to Fusarium Link. [Method] The fungal species, distribution and the diseases caused by Fusarium Link in Ningxia Hui Autonomous Region were determined by the methods of field investigation, collection, isolated culture and identification. [ Result] Nine species of fungi belonging to Fusarium Link were identified, including F. avenaceum, F. concolor, F. culmorum, F. graminearum, F. moniliforme, F. nivale, F. oxysporum, F. solani, and one unnamed species. They were distributed throughout Ningxia Hui Autonomous Region and caused more than 30 kinds of plant diseases. [ Conclusion] Fusarium Link had many species in Ningxia Hui Autonomous Region without regional features, and all of them were plant pathogens.

关键词： Fusarium Link Host Distribution Disease China

Case study on the first immigration of fall armyworm,Spodoptera frugiperda invading into China

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Journal of Integrative Agriculture 2021年第3期20卷 664-672页

作者： SUN Xiao-xu HU Chao-xing JIA Hui-ru WU Qiu-lin SHEN Xiu-jing ZHAO Sheng-yuan JIANG Yu-ying WU Kong-ming College of Plant Protection Southwest UniversityChongqing 400716P.R.China State key laboratory for Biology of Plant Diseases and Insect pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing 100193P.R.China Guizhou Provincial key laboratory for Agricultural pest Management of the Mountainous Region Institute of EntomologyGuizhou UniversityGuiyang 550025P.R.China National Agro-Tech Extension and Service Center Beijing 100125P.R.China

The fall armyworm(FAW),Spodoptera frugiperda is one of the most damaging crop pests,and it has become major threat to the food security of many countries.In order to monitor possible invasion of this pest into China,a searchlight trap was established in March 2018 in western Yunnan Province,China,where it has served as the"first station"for many pests that have migrated from Myanmar to China.A number of suspected FAW moths were captured and identified by DNA sequencing.The results showed that the FAW moth was first captured on December 11 and formed its first immigration peak in mid-December 2018.DNA detection revealed that the early invading FAW population was the"corn-strain".The field survey indicated that the pest mainly colonized corn in Pu’er,Dehong and Baoshan areas.Migration trajectory simulation implied that the moths might have mainly come from the eastern area in the mid-latitude region of Myanmar(20-25°N,94-100°E).This case study confirmed the first immigration of FAW into China,and will be helpful for guiding monitoring and management work to control this pest.

关键词： Spodoptera frugiperda Yunnan Province China invasion accumulated temperature migration trajectory

Fitness of fall armyworm,Spodoptera frugiperda to three solanaceous vegetables

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Journal of Integrative Agriculture 2021年第3期20卷 755-763页

作者： WU Li-hong ZHOU Cao LONG Gui-yun YANG Xi-bin WEI Zhi-yan LIAO Ying-jiang YANG Hong HU Chao-xing Guizhou Provincial key laboratory for Agricultural pest Management of the Mountainous Region Institute of EntomologyGuizhou UniversityGuiyang 550025P.R.China College of Tobacco Science Guizhou UniversityGuiyang 550025P.R.China Scientific Observing and Experimental Station of Crop pests in Guiyang of Ministry of Agriculture and Rural Affairs Guiyang 550025.P.R.China

The fall armyworm(FAW),Spodoptera frugiperda Smith(Lepidoptera:Noctuidae)is an important agricultural pest that invaded China in the middle of December 2018.As a polyphagous pest,FAW is identified as a serious threat to agricultural production and food security in China.Pepper(Capsicum annuum L.),tomato(Solanum lycopersicum Mill.)and eggplant(Solanum melongena L.)are three of dominant solanaceous vegetables of this country.To our knowledge,the effects of these plants on the performances of FAW have not been well studied.In this study we assessed the fitness of this pest to these three plants.Results showed that FAW can complete its life cycle when fed with tomato and pepper,but not on eggplant.The population parameters of FAW fed with maize(Zea mays L.)and the three solanaceous vegetables were compared using the age-stage,two-sex life table method.Developmental duration was significantly different in the larval stage,but not in the pupae stage.FAW fed with pepper had the longest pre-adult period(41.73 d)and the lightest pupal weight(0.1134 g);the survival rate was lower than FAW fed with tomato.Significant differences were observed in the mean fecundity of female,with the highest(943.95 eggs)laid by FAW fed with tomato.FAW had the shortest mean generation time(T),the highest intrinsic rate of increase(r)and finite rate of increase(λ)on maize,and the highest net reproductive rate(R_(0))on tomato.Overall,FAW fitness on the three solanaceous vegetables was:tomato>pepper>eggplant.This study provides the foundation for further assessment of FAW risk to solanaceous vegetables and for establishing corresponding control strategies in China.

关键词： Spodoptera frugiperda life table adaptability tomato pepper eggplant

RNA interference in Colorado potato beetle(Leptinotarsa decemlineata): A potential strategy for pest control

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Journal of Integrative Agriculture 2020年第2期19卷 428-437页

作者： MA Mei-qi HE Wan-wan XU Shi-jing XU Le-tian ZHANG Jiang State key laboratory of Biocatalysis and Enzyme engineering College of Life SciencesHubei University

Colorado potato beetle(CPB),Leptinotarsa decemlineata,is a notorious destructive pest that mainly feeds on the leaves of potato and several other solanaceous plants.CPB is widely recognized for its adaptation to a remarkable variety of host plants and diverse climates,and its high resistance to insecticides and Bacillus thuringiensis toxins.RNA interference(RNAi)is a sequence-specific,endogenous gene silencing mechanism evoked by small RNA molecules that is used as a robust tool for virus and pest control.RNAi has been extensively tested for CPB management by employing various target genes and delivery methods.This article reviews the screening of RNAi target genes,efficient RNAi delivery systems,and factors affecting RNAi efficiency in CPB,which may help understand the mechanisms of RNAi and its application in CPB control strategy.

关键词： Colorado potato beetle double-stranded RNA pest control RNA interference RNAi delivery system

Transcript analysis and expression profiling of three heat shock protein 70 genes in the ectoparasitoid Habrobracon hebetor （Hymenoptera： Braconidae）

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Insect Science 2014年第4期21卷 415-428页

作者： Hao-Liang Chen Hong-Yu Zhang James E. Throne Kun Yan Zhu State key laboratory of Agricultural Microbiology Institute of Urban and Horticultural Pests Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory College of Plant Science and Technology Huazhong Agricultural University Wuhan Institute of Plant Protection and Agro-Products Safety Anhui Academy of Agricultural Sciences Hefei China USDA Agricultural Research Service Center for Grain & Animal Health Research Manhattan KS USA Department of entomology Kansas State University Manhattan KS USA

Heat shock proteins （HSPs） are known as chaperones that help with folding of other proteins when cells are under environmental stresses. The upregulation of HSPs is essential for cold survival during insect diapause. The ectoparasitoidHabrobracon hebetor, a potential biological control agent, can enter reproductive diapause when reared at low temperature and short photoperiod. However, the expression of HSPs during diapause of H. hebetor has not been studied. In this study, we sequenced and characterized the full-length complementary DNAs of three Hsp70 genes （HhHsp70I, HhHsp70II and HhHsp70IIl） from 11. hebetor. Their deduced amino acid sequences showed more than 80% identities to their counterparts from other insect species. However, the multiple se- quence alignment among the three deduced amino acid sequences of HhHsp70s showed only 46% identities. A phylogenetic analysis of the three HhHsp70s and all other known Hsp70 sequences from Hymenoptera clustered all the Hsp70s into four groups, and the three HhHsp70s were distributed into three different groups. Real-time quantitative poly- merase chain reaction analysis showed that the expression of the three HhHspTO genes in H. hebetor reared at different conditions was quite different. HhHspTOI showed higher relative expression when H. hebetor were reared at 27.5℃ than at two lower temperatures （17.5℃ and 20℃） regardless of the photoperiod, whereas HhHspTOII showed higher ex- pression when H. hebetor were reared at 20℃ and 10 ： 14 L ： D than when reared at 17.5℃ and either 16 ： 8 L ： D or 10 ： 14 L ： D. In contrast, HhHSP7OIIIwas expressed at similar levels regardless of the rearing conditions. These results may suggest functional differences among the three HhHspTO genes in H. hebetor.

关键词： ectoparasitoid gene expression Habrobracon hebetor heat shock protein70 phylogenetic analysis quantitative RT-PCR

Early embryonic transcriptomes of Zeugodacus tau provide insight into sex determination and differentiation genes

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Insect Science 2022年第3期29卷 915-931页

作者： Peipei Liu Wenping Zheng Jiao Qiao Ziniu Li Zhurong Deng Yimin Yuan Hongyu Zhang key laboratory of Horticultural Plant Biology(MOE) Hubei Hongshan LaboratoryChina-Australia Joint Research Center for Horticultural and Urban PestsInstitute of Urban and Horticultural EntomologyCollege of Plant Science and TechnologyHuazhong Agricultural UniversityWuhanChina College of Environmental Design Wuhan Institute of Design and SciencesWuhanChina

Zeugodacus tau(Walker)is an invasive pest.The sterile insect technique is an environment-friendly method for pest control.Understanding the mechanism of sex determination will contribute to improving efficiency of this technique.In this study,we identified the transformer(tra)gene in Z.tau.One female-specific and two male-specific isoforms of tra were found in Z.tau,and the male-specific splicing pattern of tra was found to occur 5 h after egg laying.We performed transcriptome sequencing at 1 h(E1),5 h(E5),and 9 h(E9)after egg laying and obtained high-quality transcriptome libraries of early embryo development.We identified 13297 and 11713 differentially expressed genes(DEGs)from E5 versus E1 and E9 versus E1 comparisons,respectively.To explore the potential functions of the DEGs during embryonic development,Gene Ontology,Clusters of Orthologous Groups of proteins,and Kyoto Encyclopedia of Genes and Genomes analyses were performed.Twenty-six genes potentially involved in sex determination or differentiation,including Maleness-on-the-Y(MoY),were identified in Z.tau.To verify the transcriptome results,15 genes were selected for quantitative real-time PCR validation.The results were consistent with the transcriptome sequencing results.Moreover,U2 small nuclear riboprotein auxiliary factor(U2AF-50),female lethal d(fl(2)d),and virilizer(vir)were highly expressed at E5,indicating that they may be related to the sex-specific splicing of tra.Further functional analysis is needed to confirm this speculation.Our data provide an insight into the mechanism underlying sex determination and differentiation in tephritid species.

关键词： RNA-Seq sex determination sex differentiation transformer Zeugodacus tau

Tropic origins, a dispersal model for saprotrophic mushrooms in Agaricus section Minores with descriptions of sixteen new species

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Tropic origins, a dispersal model for saprotrophic mushrooms...

A new distinct geminivirus causes soybean stay-green disease

中国菌物学会2018年学术年会

作者： Mao-Qiang He Jie Chen Jun-Liang Zhou Cheewangkoon Ratchadawan Kevin D.Hyde Rui-Lin Zhao State key laboratory of Mycology Institute of MicrobiologyChinese Academy of Sciences Department of entomology and Plant Pathology Faculty of AgricultureChiang Mai University Institute of Excellence in Fungal Research Mae Fah Luang University Institute of Microbiology and Beijing key laboratory for Forest pest control Beijing Forestry University College of Life Sciences University of Chinese Academy of Sciences

Agaricus section Minores contains the richest species diversity within the genus（Zhao et al. 2011,Zhao et al. 2016, Chen et al. 2017）. Its Phylogeny is firstly presented by a Maximum Likelihood tree generated through DNA sequences from four gene regions of 91 species. Furthermore, a molecular dating analysis is conducted used those sequences, and it provided the divergence times of the clades within section Minores. Study showed section Minores has a tropical origin. Four main dispersal routes are proposed:（1） species from South Asia migrated through the Tibetan Plateau and reached Europe ca. 9–13 Ma;（2） species from out of South Asia dispersed to Europe in the earlier time of ca. 22 Ma;（3） species from South Asia dispersed through North Asia to Alaska, and reached West America around ca. 9 Ma;and（4） species from South Asia dispersed south and reached Oceania by at least three invading events about ca. 9, 12 and 16–18 Ma respectively. Those routes excepting the second route coincide with those of ectomycorrhizal mushrooms（Matheny et al. 2009, Geml et al. 2012, Wilson et al. 2012）. To know whether the second route existed in the saprotrophic mushrooms requires further studies,and the fourth route may explain why the secotioid species occurring in Australia are morphologically similar but cluster in different phylogenetic clades. This study also demonstrates a great biodiversity of A. section Minores in China that sixteen new species and three new records are introduced.

关键词： Phylogeography BEAST Phylogeny Agaricaceae

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Molecular Plant 2022年第6期15卷 927-930页

作者： Ruixiang Cheng Ruoxin Mei Rong Yan Hongyu Chen Dan Miao Lina Cai Jiayi Fan Gairu Li Ran Xu Weiguo Lu Yu Gao Wenwu Ye Shuo Su Tianfu Han Junyi Gai Yuanchao Wang Xiaorong Tao Yi Xu Department of Plant Pathology Nanjing Agricultural UniversityNanjing 210095China The key laboratory of Bio-interaction and Crop Health Nanjing Agricultural UniversityNanjing 210095China key laboratory of Soybean Disease and pest control(Ministry of Agriculture and Rural Affairs) Nanjing Agricultural UniversityNanjing 210095China engineering laboratory of Animal Immunity of Jiangsu Province College of Veterinary MedicineAcademy for Advanced Interdisciplinary StudiesNanjing Agricultural UniversityNanjing 210095China Crop Research Institute Shandong Academy of Agricultural SciencesJinanShandong 250100China Henan Academy of Crop Molecular Breeding ZhengzhouHenan 450002China College of Plant Protection Jilin Agricultural UniversityChangchunJilin 130018China MOA key laboratory of Soybean Biology(Beijing) Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China Soybean Research Institute Nanjing Agricultural UniversityNanjing 210095China

Dear Editor,Plant viruses make up almost half of the plant disease-causing pathogens,affecting crop yields and the global economy(Savary et al.,2019).Soybean(Glycine max)is one of the most valuable legume crops in the world,supplying 25%of the global edible oil and two-thirds of the global concentrated protein for livestock feeding.Recently,the outbreak of soybean stay-green syndrome with delayed leaf senescence(stay-green),flat pods,and increased number of abnormal seeds has swept the soybean production in the Huang-Huai-Hai region of China,resulting in huge yield losses(Xu et al.,2019).This disease has become an epidemic and prominent problem in soybean production and is still expanding its geography,including North America,posing a serious threat to soybean production(Harbach et al.,2016;Zhang et al.,2016;Li et al.,2019).However,the cause of soybean stay-green syndrome remains obscure.

关键词： soybean crops expanding