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Machine learning ensemble model prediction of northward shift in potato cyst nematodes(Globodera rostochiensis and G. pallida)distribution under climate change conditions

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Journal of Integrative Agriculture 2024年第10期23卷 3576-3591页

作者： Yitong He Guanjin Wang Yonglin Ren Shan Gao Dong Chu Simon J.McKirdy shandong engineering research centre for environment-friendly agricultural pest management College of Plant Health and MedicineQingdao Agricultural University Harry Butler Institute Murdoch University School of Information Technology Murdoch University Hebei Dahaituo National Nature Reserve management centre

Potato cyst nematodes (PCNs) are a significant threat to potato production,having caused substantial damage in many *** the future distribution of PCN species is crucial to implementing effective biosecurity strategies,especially given the impact of climate change on pest species invasion and *** learning (ML),specifically ensemble models,has emerged as a powerful tool in predicting species distributions due to its ability to learn and make predictions based on complex data ***,this research utilised advanced machine learning techniques to predict the distribution of PCN species under climate change conditions,providing the initial element for invasion risk *** first used Global Climate Models to generate homogeneous climate predictors to mitigate the variation among ***,five machine learning models were employed to build two groups of ensembles,single-algorithm ensembles (ESA) and multi-algorithm ensembles (EMA),and compared their *** this research,the EMA did not always perform better than the ESA,and the ESA of Artificial Neural Network gave the highest performance while being *** results indicated that the distribution range of PCNs would shift northward with a decrease in tropical zones and an increase in northern ***,the total area of suitable regions will not change significantly,occupying 16–20%of the total land surface (18%under current conditions).This research alerts policymakers and practitioners to the risk of PCNs’incursion into new ***,this ML process offers the capability to track changes in the distribution of various species and provides scientifically grounded evidence for formulating long-term biosecurity plans for their control.

关键词： invasive species distribution future climates homogeneous climate predictors single-algorithm ensembles multi-algorithm ensembles artificial neural network

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The new kid on the block in insect pest management:sprayable RNAi goes commercial

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Science China(Life Sciences) 2024年第8期67卷 1766-1768页

作者： Junjie Yan Ralf Nauen Stuart Reitz Andrei Alyokhin Jiang Zhang David Mota-Sanchez Yonggyun Kim Subba Reddy Palli Silvia I.Rondon Brian A.Nault Juan Luis Jurat-Fuentes Michael S.Crossley William E.Snyder Angharad M.R.Gatehouse Myron P.Zalucki Bruce E.Tabashnik Yulin Gao State Key Laboratory for Biology of Plant Disease and Insect pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing 100193China Bayer AG Crop Science DivisionR&DPest ControlMonheim 40789Germany Department of Crop and Soil Science Oregon State UniversityOntario 97914USA School of Biology and Ecology University of MaineOrono 04469USA Shenzhen Branch Guangdong Laboratory of Lingnan Modern AgricultureKey Laboratory of Synthetic BiologyMinistry of Agriculture and Rural AffairsAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518000China Department of Entomology Michigan State UniversityEast Lansing 48864USA Department of Plant Medicals Andong National UniversityAndong 36729Republic of Korea Department of Entomology University of KentuckyLexington 40503USA Oregon State University Oregon Integrated Pest Management CenterCorvallis 97838USA Department of Entomology Cornell UniversityCornell AgriTechGeneva 14456USA Department of Entomology and Plant Pathology University of TennesseeKnoxville 37996USA Department of Entomology and Wildlife Ecology University of DelawareNewark 19716USA Department of Entomology University of GeorgiaAthensGeorgia 30602USA School of Natural and environmental Sciences Newcastle UniversityNewcastle upon TyneNE17RUUK School of the environment University of QueenslandBrisbane 4072Australia shandong engineering research Center for environment-friendly agricultural pest management College of Plant Health and MedicineQingdao Agricultural UniversityQingdao 266109China Department of Entomology University of ArizonaTucson 85721USA National Center of Excellence for Tuber and Root Crop research Chinese Academy of Agricultural SciencesBeijing 100081China

Insect pest damage to crops is a threat to global food security(Tilman et al.,2011).Climate change,the evolution of insecticide resistance,and the phasing out of insecticides due to environmental and safety concerns exacerbate this *** urgently need safe and effective crop protection tools to sustainably generate yields that meet ever-increasing global demand.

关键词： crops damage pest

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Cardinium infection alters cotton defense and detoxification metabolism of its whitefly host

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Insect Science 2023年第2期30卷 473-485页

作者： Ying Liu Kun Yang Jicheng Wang Dong Chu shandong engineering research Center for environment-friendly agricultural pest management College of Plant Health and MedicineQingdao Agricultural UniversityQingdaoShangdong ProvinceChina

Field monitoring revealed that the infection ratio of the bacterial symbiont Cardinium in the whitefly(Bemisia tabaci MED)was relatively low in northern ***,the role of this symbiont and the symbiont-whitefly-host plant interaction mechanism are poorly *** investigated the influence of Cardinium on the competitiveness of the host whitefly and the physiological interaction between the host plants and host ***-infected whiteflies were displaced by uninfected whiteflies after 5 generations,which showed that Cardinium infection reduced whitefly *** defense response genes of cotton significantly decreased under infestation by infected whiteflies compared to uninfected *** expression of detoxification metabolism genes,especially the uridine 5ʹ-diphospho-glucuronyltransferase and P450 genes,in infected whiteflies significantly *** results demonstrated that Cardinium could inhibit the defense response of the host plant and decrease the detoxification metabolism ability of the host *** reduced competitiveness of infected whiteflies may be associated with the inhibition of the whitefly detoxification metabolism by Cardinium,resulting in the reduced performance of infected ***,Cardinium infection can suppress plant defenses,which may benefit both infected and uninfected whiteflies when they *** research illustrates the symbiont–whitefly–host plant interaction mechanism and the population dynamics of the whitefly.

关键词： Bemisia tabaci MED Cardinium defense response detoxification metabolism

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Alternate cotton-peanut intercropping:a new approach to increasing productivity and minimizing environmental impact

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Journal of Cotton research 2024年第1期7卷 101-103页

作者： CHI Baojie DONG Hezhong College of agricultural Science and Technology Shandong Agriculture and Engineering UniversityJinan 250100China State Key Laboratory of Nutrient Use and management Institute of Industrial CropsShandong Academy of Agricultural SciencesJinan 250100China

Recent publications have highlighted the development of an alternate cotton-peanut intercropping as a novel strat-egy to enhance agricultural *** this article,we provide an overview of the progress made in the alternate cotton-peanut intercropping,specifically focusing on its yield benefits,environmental impacts,and the underlying *** addition,we advocate for future investigations into the selection or development of appropriate crop varieties and agricultural equipment,pest management options,and the mechanisms of root-canopy *** review is intended to provide a valuable reference for understanding and adopting an alternate intercropping system for sustainable cotton production.

关键词： Cotton Peanut Alternate intercropping Productivity

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Transcriptome-wide N6-methyladenosine(m^(6)A)methylation in soybean under Meloidogyne incognita infection

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aBIOTECH 2022年第3期3卷 197-211页

作者： Xue Han Qianqian Shi Ziyi He Wenwen Song Qingshan Chen Zhaoming Qi College of Agriculture Northeast Agricultural UniversityHarbin150030China shandong engineering research Center for environment-friendly agricultural pest management College of Plant Health and MedicineQingdao Agricultural UniversityQingdao266109China

N^(6)-methyladenosine(m^(6)A)is a reversible epigenetic modification of mRNA and other RNAs that plays a significant role in regulating gene expression and biological ***,m^(6)A abundance,dynamics,and transcriptional regulatory mechanisms remain unexplored in the context of soybean resistance to Meloidogyne *** this study,we performed a comparative analysis of transcriptome-wide m^(6)A and metabolome profiles of soybean root tissues with and without *** *** m^(6)A hypermethylation was widely induced in response to *** infection and was enriched around the 3′end of coding sequences and in 3′UTR *** were 2069 significantly modified m^(6)A sites,594 differentially expressed genes,and 103 differentially accumulated metabolites between infected and uninfected roots,including coumestrol,psoralidin,and *** 101 m^(6)A-modified DEGs,34 genes were hypomethylated and upregulated,and 39 genes were hypermethylated and downregulated,indicating a highly negative correlation between m^(6)A methylation and gene transcript abundance.A number of these m^(6)A-modified DEGs,including WRKY70,ERF60,POD47 and LRR receptor-like serine/threonine-protein kinases,were involved in plant defense *** study provides new insights into the critical role of m^(6)A modification in early soybean responses to ***.

关键词： m^(6)A methylation Soybean Meloidogyne incognita m^(6)A-seq RNA-seq Metabolome

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Infection density pattern of Cardinium affects the responses of bacterial communities in an invasive whitefly under heat conditions

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Insect Science 2023年第4期30卷 1149-1164页

作者： Kun Yang Peng-Hao Qin Meng-Ying Yuan Lei Chen You-Jun Zhang Dong Chu shandong engineering research Center for environment-friendly agricultural pest management College of Plant Health and MedicineQingdao Agricultural UniversityQingdaoShandong ProvinceChina Department of Entomology Nanjing Agricultural UniversityNanjingChina Department of Plant Protection Institute of Vegetables and FlowersChinese Academy of Agricultural SciencesBejingChina

Communities of bacteria,especially symbionts,are vital for the growth and development of insects and other arthropods,including Bemisia tabaci Mediterranean(MED),a destructive and invasive insect ***,the infection density patterns and influence factors of bacteria in whiteflies,which mainly include symbionts,remain largely *** reveal the different density patterns of Cardinium in *** MED popula-tions and the impacts of high temperatures on whiteflies with different Cardinium density infection patterns,2 isofemale lines isolated from *** MED from the same geo-graphical population of China and from *** MED collected from other countries and locations were examined using several techniques and methods,including fluorescence in situ hybridization(FISH),quantitative real-time polymerase chain reaction(qPCR),16S rRNA gene sequencing,and 2b-RAD *** results showed that there were 2 different infection density patterns of Cardinium in *** MED(including 1 high-density pattern and 1 low-density pattern).For whiteflies with low-density Cardinium,conventional PCR could not detect Cardinium,but the other techniques confirmed that there was a low level of Cardinium within *** temperature significantly decreased the diversity of bacterial communities:the relative titer of Cardinium increased but the density of Rickettsia decreased in the isofemale line with high-density ***-ever,high temperature did not influence the diversity and symbiont density in the line with low-density ***,high temperature influenced the functions of bacterial communities in whiteflies with high-density Cardinium but did not affect the bacterial functions in whiteflies with low-density *** results provide novel insights into the complex associations between symbionts and host insects.

关键词： bacterial communities Bemisia tabaci MED Cardinium heat stress infec-tion density pattern

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Antiviral function of peptidoglycan recognition protein in Spodoptera exigua(Lepidoptera:Noctuidae)

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Insect Science 2023年第4期30卷 1092-1104页

作者： Jie Li Jie Li Zhaohao Jing Qianlong Yu Guiling Zheng Bin Zhang Longsheng Xing Huan Zhang Fanghao Wan Changyou Li shandong engineering research Center for environment-friendly agricultural pest management Cllege of Plant Health and MedicineQingdao Agricultural UniversityQingdaoChina agricultural Genomics Institute at Shenzhen Chinese Academy of Agricultural SciencesShenzhenChina Institute of Zoology Chinese Academy of SciencesBejingChina

Peptidoglycan recognition proteins(PGRPs)are a class of molecules that play a critical role in insect *** the function of PGRPs is important to improve the efficiency of microbial *** this study,we investigated the role of PGRP-LB(a long type PGRP)in insect immunity against viruses using Spodoptera exigua and Spodoptera exigua multiple nucleopolyhedrovirus(SeMNPV)as an insect-virus *** cloned and identified a PGRP-LB gene from ***;the gene consisted of 7 exons that encoded a polypeptide of 234 amino acids with a signal peptide and a typical amidase *** analysis revealed that the abundance of SePGRP-LB transcripts in the fat body was greater than in other *** of SePGRP-LB resulted in a significant decrease of 49%in the rate of SeMNPV-infected *** addition,the multiplication of SeMNPV was significantly decreased:a decrease of 79%in the production of occlusion-derived virion(ODV),and a maximum decrease of 50%in the production of budded virion(BV).In contrast,silencing of SePGRP-LB expression by RNA interference resulted in a significant 1.65-fold increase in the rate of SeMNPV-infected cells,a significant 0.54-fold increase in ODV production,a maximum 1.57-fold increase in BV production,and the larval survival dropped to 21%.Our findings show that SePGRP-LB has an antiviral function against SeMNPV,and therefore this gene may provide a target for lepidopteran pest control using virus insecticides.

关键词： antiviral long-type peptidoglycan recognition protein gene PGRP-LB Spodoptera exigua multiple nucleopolyhedrovirus Spodoptera exigua

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Invasion genetics of alien insect pests in China: research progress and future prospects

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Journal of Integrative Agriculture 2019年第4期18卷 748-757页

作者： CHU Dong QU Wan-mei GUO Lei Key Lab of Integrated Crop pest management of shandong Province/College of Plant Health and Medicine Qingdao Agricultural University

An unwelcome side effect of the globalization of the world's economy and dramatic increase in human mobility and trade has been a marked increase in species invasions that have posed severe threats to the ecological, economic, and/or social stability of the introduced regions. In this review, we analyzed the application of molecular markers in invasion genetics of invasive alien insect pests(IAIPs) in China based on a bibliometric survey. Our report discusses the considerable progress that has been made during the past two decades in understanding the invasion genetics of IAIPs in China. We reviewed the major findings in the main topics including the effects of origin and routes of invasion on genetic structure, spatial and temporal genetic changes, factors contributing to the genetic changes of IAIPs, and genetic mechanisms involved in IAIPs' invasions. On the other hand, some of these research areas remain relatively unexplored in China, especially those pertaining to spatial and temporal genetic changes of IAIPs and genetic mechanisms of IAIPs' invasions. Finally, the future research prospects of IAIPs in China are discussed. We hope this review will stimulate an interest in and provide an increased understanding of the field of invasion genetics of IAIPs in China, and provide a basis for future research in this area.

关键词： biological invasion invasive alien insect pests(IAIPs) China invasion genetics genetic variation

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Transmission characteristics of Tomato chlorosis virus (ToCV) by Bemisia tabaci MED and its effects on host preference of vector whitefly

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Journal of Integrative Agriculture 2019年第9期18卷 2107-2114页

作者： WEI Ke-ke LI Jie DING Tian-bo LIU Tong-xian CHU Dong Key Lab of Integrated Crop pest management of shandong Province College of Plant Health and Medicine Qingdao Agricultural University

The epidemiology of Tomato chlorosis virus(ToCV)in China is closely associated with its vector whitefly,Bemisia tabaci(Gennadius)***,the transmission characteristics of ToCV by *** MED remain poorly *** this study,we analyzed:1)the horizontal and vertical transmission of ToCV by *** MED whiteflies;2)the acquisition of ToCV by male and female *** MED whiteflies after different feeding durations;3)the transmission efficacy of viruliferous male and female *** MED whiteflies after different inoculation access periods(IAPs);4)the retention of ToCV by viruliferous male and female *** MED whiteflies after a 48 h acquisition access period(AAP);and 5)the effects of ToCV on host choice of healthy or ToCV-infected tomato plant of viruliferous and non-viruliferous *** MED at different time *** results showed that:1)viruliferous males could not transfer ToCV to non-viruliferous females,and vice versa,viruliferous females could not pass on ToCV to non-viruliferous *** could not be detected in the F1 generation adults;2)ToCV could be detected within 4.0%of females or males after a 20 min AAP;3)ToCV could be detected in 33.3%of tomato plants inoculated by 10 viruliferous males or females with IAPs of 20 or 30 min;4)the maximum retention time in females was 7 and 5 days in males;and 5)non-viruliferous *** MED did not show a preference for ToCV-infected tomato plants or healthy tomato ***,viruliferous *** MED whiteflies did prefer to settle on healthy tomato plants over ToCV-infected tomato *** findings will be helpful to better understand the epidemiology of the recently emerged plant virus,ToCV,in tomato fields in China.

关键词： Tomato chlorosis virus Bemisia tabaci MED transmission characteristics preference

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Neopestalotiopsis eucalypti,a causal agent of grapevine shoot rot in cutting nurseries in China

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Journal of Integrative Agriculture 2022年第12期21卷 3684-3691页

作者： MA Xuan-yan JIAO Wei-qi LI Heng ZHANG Wei REN Wei-chao WU Yan ZHANG Zhi-chang LI Bao-hua ZHOU Shan-yue College of Plant Health and Medicine Qingdao Agricultural University/Engineering Research Center for Precision Pest Management for Fruits and Vegetables of QingdaoQingdao 266109P.R.China Beijing Key Laboratory of environment friendly management on Fruit Diseases and pests in North China Institute of Plant and Environment ProtectionBeijing Academy of Agriculture and Forestry SciencesBeijing 100097P.R.China shandong Zhichang agricultural Science and Technology Development Co. Ltd.Rizhao 276500P.R.China

Grapevine(Vitis vinifera L.)is an economically important fruit crop in the world,and China ranks first in the production of grapes with approximately 15%of the world’s total ***,diseases that cause the death of grapevine shoots pose a severe threat to the production of *** this study,the fungus Neopestalotiopsis eucalypti was identified as a causal pathogen of grapevine shoot rot based on the morphology of conidia and a phylogenetic *** phylogenetic analysis was performed with three isolates based on the combined sequence of internal transcribed spacer(ITS)region of ribosomal DNA,part of the translation elongation factor 1-alpha(Tef)and theβ-tubulin(Tub2)*** three isolates were all identified as *** tests of the three fungal isolates were conducted on grapevines shoots in vitro and in *** results showed that all three fungal isolates caused severe rot lesions on the inoculated grapevine shoots,and *** was re-isolated from the inoculated grapevine ***,*** was confirmed as a causal agent of the grapevine shoot *** is the first report of *** causing grapevine shoot disease in China.

关键词： Neopestalotiopsis eucalypti grapevine shoot rot multigene phylogenetic analysis pathogenicity

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