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Minsheng You

Meizhen Lin, Liette Vasseur, Guang Yang, Geoff M Gurr, Minsheng You
Rain and dew droplets can dislodge or drown small insects and may be important factors that drive adaptations for avoidance and escape. Studying the microstructure of small insects and insect behaviour can help understand these adaptations. We quantified avoidance behaviour and entrapment of nymphs and adults of the tea green leafhopper (Empoasca onukii) using simulated rainfall onto host plant foliage and made observations of pretarsi and abdomen microstructures. Adults responded rapidly to simulated rainfall and escaped by jumping whilst most young nymphs were washed from water-sprayed leaves though older nymphs tended to remain on leaves and subsequently escaped from water droplets...
November 15, 2016: Scientific Reports
Geoff M Gurr, Anne C Johnson, Gavin J Ash, Bree A L Wilson, Mark M Ero, Carmel A Pilotti, Charles F Dewhurst, Minsheng S You
The recent discovery of Bogia coconut syndrome in Papua New Guinea (PNG) is the first report of a lethal yellowing disease (LYD) in Oceania. Numerous outbreaks of LYDs of coconut have been recorded in the Caribbean and Africa since the late Nineteenth century and have caused the death of millions of palms across several continents during the Twentieth century. Despite the severity of economic losses, it was only in the 1970s that the causes of LYDs were identified as phytoplasmas, a group of insect-transmitted bacteria associated with diseases in many other economically important crop species...
2016: Frontiers in Plant Science
Geoff M Gurr, Steve D Wratten, Douglas A Landis, Minsheng You
Habitat management involving manipulation of farmland vegetation can exert direct suppressive effects on pests and promote natural enemies. Advances in theory and practical techniques have allowed habitat management to become an important subdiscipline of pest management. Improved understanding of biodiversity-ecosystem function relationships means that researchers now have a firmer theoretical foundation on which to design habitat management strategies for pest suppression in agricultural systems, including landscape-scale effects...
November 2, 2016: Annual Review of Entomology
Hengyu Lu, Bree A L Wilson, Gavin J Ash, Sharon B Woruba, Murray J Fletcher, Minsheng You, Guang Yang, Geoff M Gurr
Phytoplasmas are insect vectored mollicutes responsible for disease in many economically important crops. Determining which insect species are vectors of a given phytoplasma is important for managing disease but is methodologically challenging because disease-free plants need to be exposed to large numbers of insects, often over many months. A relatively new method to detect likely transmission involves molecular testing for phytoplasma DNA in sucrose solution that insects have fed upon. In this study we combined this feeding medium method with a loop-mediated isothermal amplification (LAMP) assay to study 627 insect specimens of 11 Hemiptera taxa sampled from sites in Papua New Guinea affected by Bogia coconut syndrome (BCS)...
October 27, 2016: Scientific Reports
Weiping Qi, Xiaoli Ma, Weiyi He, Wei Chen, Mingmin Zou, Geoff M Gurr, Liette Vasseur, Minsheng You
BACKGROUND: ATP-binding cassette (ABC) transporters are one of the major transmembrane protein families found in all organisms and play important roles in transporting a variety of compounds across intra and extra cellular membranes. In some species, ABC transporters may be involved in the detoxification of substances such as insecticides. The diamondback moth, Plutella xylostella (L.), a destructive pest of cruciferous crops worldwide, is an important species to study as it is resistant to many types of insecticides as well as biological control Bacillus thuringiensis toxins...
September 27, 2016: BMC Genomics
Yuping Huang, Yazhou Chen, Baosheng Zeng, Yajun Wang, Anthony A James, Geoff M Gurr, Guang Yang, Xijian Lin, Yongping Huang, Minsheng You
The diamondback moth, Plutella xylostella (L.), is a worldwide agricultural pest that has developed resistance to multiple classes of insecticides. Genetics-based approaches show promise as alternative pest management approaches but require functional studies to identify suitable gene targets. Here we use the CRISPR/Cas9 system to target a gene, abdominal-A, which has an important role in determining the identity and functionality of abdominal segments. We report that P. xylostella abdominal-A (Pxabd-A) has two structurally-similar splice isoforms (A and B) that differ only in the length of exon II, with 15 additional nucleotides in isoform A...
August 2016: Insect Biochemistry and Molecular Biology
Fushi Ke, Shijun You, Weiyi He, Tiansheng Liu, Liette Vasseur, Carl J Douglas, Minsheng You
Movement of individuals through events, such as storms or crop transportation, may affect survival and distribution of insect pests, as well as population genetic structure at a regional scale. Understanding what factors contribute to gene flow in pest populations remains very important for sustainable pest management. The diamondback moth (Plutella xylostella) is an insect pest well known for its capacity of moving over short to long distances. Here, we used newly isolated microsatellite markers to analyze the genetic structure of nine populations across the Taiwan Strait of China (Taiwan and Fujian)...
December 2015: Ecology and Evolution
Geoff M Gurr, Minsheng You
Biological control has long been considered a potential alternative to pesticidal strategies for pest management but its impact and level of use globally remain modest and inconsistent. A rapidly expanding range of molecular - particularly DNA-related - techniques is currently revolutionizing many life sciences. This review identifies a series of constraints on the development and uptake of conservation biological control and considers the contemporary and likely future influence of molecular methods on these constraints...
2015: Frontiers in Plant Science
Zhenyu Li, Xia Feng, Shu-Sheng Liu, Minsheng You, Michael J Furlong
The diamondback moth (DBM), Plutella xylostella (L.), costs the Chinese economy US$0.77 billion annually, and considerable research has focused on its biology, ecology, and management. Much of this research has been published locally and is inaccessible outside China. Since 1990 Brassica vegetable production has increased 20-fold and production practices have intensified, but losses continue to increase. Insecticide use is widespread and many DBM populations, particularly in southern provinces, are resistant to multiple compounds...
2016: Annual Review of Entomology
Hailan Lin, Xiaofeng Xia, Liying Yu, Liette Vasseur, Geoff M Gurr, Fengluan Yao, Guang Yang, Minsheng You
BACKGROUND: Serine proteases (SPs) are crucial proteolytic enzymes responsible for digestion and other processes including signal transduction and immune responses in insects. Serine protease homologs (SPHs) lack catalytic activity but are involved in innate immunity. This study presents a genome-wide investigation of SPs and SPHs in the diamondback moth, Plutella xylostella (L.), a globally-distributed destructive pest of cruciferous crops. RESULTS: A total of 120 putative SPs and 101 putative SPHs were identified in the P...
December 10, 2015: BMC Genomics
Lu Peng, Mingmin Zou, Nana Ren, Miao Xie, Liette Vasseur, Yifan Yang, Weiyi He, Guang Yang, Geoff M Gurr, Youming Hou, Shijun You, Minsheng You
Understanding how inbreeding affects fitness is biologically important for conservation and pest management. Despite being a worldwide pest of many economically important cruciferous crops, the influence of inbreeding on diamondback moth, Plutella xylostella (L.), populations is currently unknown. Using age-stage-specific life tables, we quantified the inbreeding effects on fitness-related traits and demographic parameters of P. xylostella. Egg hatching rate, survival and fecundity of the inbred line significantly declined compared to those of the outbred line over time...
2015: Scientific Reports
Xiaofeng Xia, Liying Yu, Minqian Xue, Xiaoqiang Yu, Liette Vasseur, Geoff M Gurr, Simon W Baxter, Hailan Lin, Junhan Lin, Minsheng You
The diamondback moth, Plutella xylostella (L.), is a destructive pest that attacks cruciferous crops worldwide. Immune responses are important for interactions between insects and pathogens and information on these underpins the development of strategies for biocontrol-based pest management. Little, however, is known about immune genes and their regulation patterns in P. xylostella. A total of 149 immune-related genes in 20 gene families were identified through comparison of P. xylostella genome with the genomes of other insects...
2015: Scientific Reports
Yanchun You, Miao Xie, Nana Ren, Xuemin Cheng, Jianyu Li, Xiaoli Ma, Minming Zou, Liette Vasseur, Geoff M Gurr, Minsheng You
BACKGROUND: Glutathione S-transferases (GSTs) are multifunctional detoxification enzymes that play important roles in insects. The completion of several insect genome projects has enabled the identification and characterization of GST genes over recent years. This study presents a genome-wide investigation of the diamondback moth (DBM), Plutella xylostella, a species in which the GSTs are of special importance because this pest is highly resistant to many insecticides. RESULTS: A total of 22 putative cytosolic GSTs were identified from a published P...
2015: BMC Genomics
Yanchun You, Miao Xie, Nana Ren, Xuemin Cheng, Jianyu Li, Xiaoli Ma, Minming Zou, Liette Vasseur, Geoff M Gurr, Minsheng You
BACKGROUND: Glutathione S-transferases (GSTs) are multifunctional detoxification enzymes that play important roles in insects. The completion of several insect genome projects has enabled the identification and characterization of GST genes over recent years. This study presents a genome-wide investigation of the diamondback moth (DBM), Plutella xylostella, a species in which the GSTs are of special importance because this pest is highly resistant to many insecticides. RESULTS: A total of 22 putative cytosolic GSTs were identified from a published P...
2015: BMC Genomics
Liying Yu, Weiqi Tang, Weiyi He, Xiaoli Ma, Liette Vasseur, Simon W Baxter, Guang Yang, Shiguo Huang, Fengqin Song, Minsheng You
Cytochrome P450 monooxygenases are present in almost all organisms and can play vital roles in hormone regulation, metabolism of xenobiotics and in biosynthesis or inactivation of endogenous compounds. In the present study, a genome-wide approach was used to identify and analyze the P450 gene family of diamondback moth, Plutella xylostella, a destructive worldwide pest of cruciferous crops. We identified 85 putative cytochrome P450 genes from the P. xylostella genome, including 84 functional genes and 1 pseudogene...
March 10, 2015: Scientific Reports
Weiqi Tang, Liying Yu, Weiyi He, Guang Yang, Fushi Ke, Simon W Baxter, Shijun You, Carl J Douglas, Minsheng You
The diamondback moth Genome Database (DBM-DB) is a central online repository for storing and integrating genomic data of diamondback moth (DBM), Plutella xylostella (L.). It provides comprehensive search tools and downloadable datasets for scientists to study comparative genomics, biological interpretation and gene annotation of this insect pest. DBM-DB contains assembled transcriptome datasets from multiple DBM strains and developmental stages, and the annotated genome of P. xylostella (version 2). We have also integrated publically available ESTs from NCBI and a putative gene set from a second DBM genome (KONAGbase) to enable users to compare different gene models...
2014: Database: the Journal of Biological Databases and Curation
Guiping Hu, Yan Zhao, Bo Liu, Fengqing Song, Minsheng You
The Bacterial community structure and its complexity of the enrichment culture during the isolation and screening of imidacloprid-degrading strain were studied using denaturating gradient gel electrophoresis analysis. The dominant bacteria in the original tea rhizosphere soil were uncultured bacteria, Rhizobium sp., Sinorhizobium, Ochrobactrum sp., Alcaligenes, Bacillus sp., Bacterium, Klebsiella sp., and Ensifer adhaerens. The bacterial community structure was altered extensively and its complexity reduced during the enrichment process, and four culturable bacteria, Ochrobactrum sp...
November 28, 2013: Journal of Microbiology and Biotechnology
Xiaofeng Xia, Dandan Zheng, Huanzi Zhong, Bingcai Qin, Geoff M Gurr, Liette Vasseur, Hailan Lin, Jianlin Bai, Weiyi He, Minsheng You
BACKGROUND: Insect midgut microbiota is important in host nutrition, development and immune response. Recent studies indicate possible links between insect gut microbiota and resistance to biological and chemical toxins. Studies of this phenomenon and symbionts in general have been hampered by difficulties in culture-based approach. In the present study, DNA sequencing was used to examine the midgut microbiota of diamondback moth (DBM), Plutella xylostella (L.), a destructive pest that attacks cruciferous crops worldwide...
2013: PloS One
Minsheng You, Zhen Yue, Weiyi He, Xinhua Yang, Guang Yang, Miao Xie, Dongliang Zhan, Simon W Baxter, Liette Vasseur, Geoff M Gurr, Carl J Douglas, Jianlin Bai, Ping Wang, Kai Cui, Shiguo Huang, Xianchun Li, Qing Zhou, Zhangyan Wu, Qilin Chen, Chunhui Liu, Bo Wang, Xiaojing Li, Xiufeng Xu, Changxin Lu, Min Hu, John W Davey, Sandy M Smith, Mingshun Chen, Xiaofeng Xia, Weiqi Tang, Fushi Ke, Dandan Zheng, Yulan Hu, Fengqin Song, Yanchun You, Xiaoli Ma, Lu Peng, Yunkai Zheng, Yong Liang, Yaqiong Chen, Liying Yu, Younan Zhang, Yuanyuan Liu, Guoqing Li, Lin Fang, Jingxiang Li, Xin Zhou, Yadan Luo, Caiyun Gou, Junyi Wang, Jian Wang, Huanming Yang, Jun Wang
How an insect evolves to become a successful herbivore is of profound biological and practical importance. Herbivores are often adapted to feed on a specific group of evolutionarily and biochemically related host plants, but the genetic and molecular bases for adaptation to plant defense compounds remain poorly understood. We report the first whole-genome sequence of a basal lepidopteran species, Plutella xylostella, which contains 18,071 protein-coding and 1,412 unique genes with an expansion of gene families associated with perception and the detoxification of plant defense compounds...
February 2013: Nature Genetics
Weiyi He, Minsheng You, Liette Vasseur, Guang Yang, Miao Xie, Kai Cui, Jianlin Bai, Chunhui Liu, Xiaojing Li, Xiufeng Xu, Shiguo Huang
We present here the de novo assembly and annotation of the transcriptome of Plutella xylostella (diamondback moth (DBM)), a widespread destructive pest of cruciferous plants, using short reads generated by Illumina sequencing from different developmental stages and insecticide-resistant strains. A total of 171,262 non-redundant sequences, denoted as unigenes, were obtained. They represented approximately 100-fold of all DBM mRNA and EST sequences in GenBank thus far. We identified 38,255 unigenes highly similar to the known functional protein-coding genes, most of which were annotated using gene ontology (GO) and orthologous groups of proteins (COG)...
March 2012: Genomics
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