33,427 results match your criteria Arthropod Structure & Development[Journal]


Genetic structure of populations following the use of insecticides on several consecutive years in southern Benin.

Trop Med Health 2019 11;47:23. Epub 2019 Apr 11.

Cotonou Entomological Research Center (CREC), Cotonou, Benin.

Background: Several studies have reported the strong resistance of complex species to pyrethroids. The voltage-dependent sodium channel () gene is the main target of pyrethroids and DDT. In Benin, the frequency of the resistant allele () of this gene varies along the north-south transect. Read More

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http://dx.doi.org/10.1186/s41182-019-0151-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6458727PMC

A comparative study of the pharyngeal plate of Apoidea (Hymenoptera: Aculeata), with implications for the understanding of phylogenetic relationships of bees.

Arthropod Struct Dev 2019 Apr 16. Epub 2019 Apr 16.

Laboratório de Biologia Comparada e Abelhas (LBCA) - Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP), Universidade de São Paulo, 14040-901, Ribeirão Preto, SP, Brazil. Electronic address:

The pharyngeal plate is a morphological complex with extensive anatomical variation among bees and, therefore, potential as a source of phylogenetic information. The pharyngeal plate of bees is divided into four morphologically distinct regions: sitophore, hypopharyngeal lobe, pharyngeal rods, and median oral plate. In this work we illustrate and document in detail for the first time the pharyngeal plate of 44 bee species, providing descriptions of the morphological variation and contrasting these findings with representatives of apoid wasps (Crabronidae and Sphecidae). Read More

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http://dx.doi.org/10.1016/j.asd.2019.04.002DOI Listing

Evolution of transposable elements across eukaryotic diversity.

Mob DNA 2019 21;10:12. Epub 2019 Mar 21.

Centre for Ecology and Conservation, University of Exeter, Penryn Campus, Penryn, Cornwall, TR10 9FE UK.

Background: -like elements (MULEs) are a significant superfamily of DNA transposons on account of their: (i) great transpositional activity and propensity for insertion in or near gene sequences, (ii) their consequent high mutagenic capacity, and, (iii) their tendency to acquire host gene fragments. Consequently, MULEs are important genetic tools and represent a key study system for research into host-transposon interactions. Yet, while several studies have focused on the impacts of MULEs on crop and fungus genomes, their evolution remains poorly explored. Read More

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http://dx.doi.org/10.1186/s13100-019-0153-8DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6446971PMC
March 2019
2 Reads

A diecast mineralization process forms the tough mantis shrimp dactyl club.

Proc Natl Acad Sci U S A 2019 Apr 11. Epub 2019 Apr 11.

Centre for Biomimetic Sensor Science, School of Materials Science and Engineering, Nanyang Technological University (NTU), 639798 Singapore;

Biomineralization, the process by which mineralized tissues grow and harden via biogenic mineral deposition, is a relatively lengthy process in many mineral-producing organisms, resulting in challenges to study the growth and biomineralization of complex hard mineralized tissues. Arthropods are ideal model organisms to study biomineralization because they regularly molt their exoskeletons and grow new ones in a relatively fast timescale, providing opportunities to track mineralization of entire tissues. Here, we monitored the biomineralization of the mantis shrimp dactyl club-a model bioapatite-based mineralized structure with exceptional mechanical properties-immediately after ecdysis until the formation of the fully functional club and unveil an unusual development mechanism. Read More

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http://dx.doi.org/10.1073/pnas.1816835116DOI Listing
April 2019
3 Reads

Tropical forest conversion to rubber plantation affects soil micro- & mesofaunal community & diversity.

Sci Rep 2019 Apr 10;9(1):5893. Epub 2019 Apr 10.

School of Geography and Ocean Sciences, Nanjing University, Nanjing, 210023, Jiangsu Province, China.

Tropical rainforests play important roles in carbon sequestration and are hot spots for biodiversity. Tropical forests are being replaced by rubber (Hevea brasiliensis) plantations, causing widespread concern of a crash in biodiversity. Such changes in aboveground vegetation might have stronger impacts on belowground biodiversity. Read More

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http://dx.doi.org/10.1038/s41598-019-42333-4DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6458137PMC

Associated cultivated plants in tomato cropping systems structure arthropod communities and increase the Helicoverpa armigera regulation.

Bull Entomol Res 2019 Apr 10:1-8. Epub 2019 Apr 10.

GECO, Univ Montpellier,CIRAD, Montpellier,France.

Cultivating plant mixtures is expected to provide a higher productivity and a better control of pests and diseases. The structure of the arthropod community is a major driver of the magnitude of natural pest regulations.With the aim of optimizing pest management, a study was carried out to determine the effect of the cropping system type (tomato mono-cropping vs. Read More

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http://dx.doi.org/10.1017/S0007485319000117DOI Listing

The composition and abundance of bacterial communities residing in the gut of Glossina palpalis palpalis captured in two sites of southern Cameroon.

Parasit Vectors 2019 Apr 2;12(1):151. Epub 2019 Apr 2.

INTERTRYP, Institut de Recherche pour le Développement, University of Montpellier, Montpellier, France.

Background: A number of reports have demonstrated the role of insect bacterial flora on their host's physiology and metabolism. The tsetse host and vector of trypanosomes responsible for human sleeping sickness (human African trypanosomiasis, HAT) and nagana in animals (African animal trypanosomiasis, AAT) carry bacteria that influence its diet and immune processes. However, the mechanisms involved in these processes remain poorly documented. Read More

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http://dx.doi.org/10.1186/s13071-019-3402-2DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6444424PMC
April 2019
3 Reads

A study of the extraordinarily strong and tough silk produced by bagworms.

Nat Commun 2019 04 1;10(1):1469. Epub 2019 Apr 1.

Silk Materials Research Unit, National Agriculture and Food Research Organization (NARO), 1-2 Owashi, Tsukuba, Ibaraki, 305-8634, Japan.

Global ecological damage has heightened the demand for silk as 'a structural material made from sustainable resources'. Scientists have earnestly searched for stronger and tougher silks. Bagworm silk might be a promising candidate considering its superior capacity to dangle a heavy weight, summed up by the weights of the larva and its house. Read More

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http://www.nature.com/articles/s41467-019-09350-3
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http://dx.doi.org/10.1038/s41467-019-09350-3DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6443776PMC
April 2019
17 Reads

The Natural History of Teneurins: A Billion Years of Evolution in Three Key Steps.

Authors:
Ron Wides

Front Neurosci 2019 15;13:109. Epub 2019 Mar 15.

The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel.

The entire evolutionary history of the animal gene family, Teneurin, can be summed up in three key steps, plus three salient footnotes. In a shared ancestor of all bilaterians, the first step began with gene fusions that created a protein with an amino-terminal intracellular domain bridged via a single transmembrane helix to extracellular EGF-like domains. This first step was completed with a further gene fusion: an additional carboxy-terminal stretch of about 2000 amino acids (aa) was adopted, as-a-whole, from bacteria. Read More

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https://www.frontiersin.org/article/10.3389/fnins.2019.00109
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http://dx.doi.org/10.3389/fnins.2019.00109DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6428715PMC
March 2019
4 Reads

Antibiotic exposure perturbs the bacterial community in the small brown planthopper Laodelphax striatellus.

Insect Sci 2019 Mar 28. Epub 2019 Mar 28.

Department of Entomology, Nanjing Agricultural University, Nanjing, 210095, China.

Bacteria symbionts in herbivores play an important role in host biology and ecology, and are affected by environmental factors such as temperature, diet, habitat, antibiotics etc. However, the effects of antibiotics on the microbiome of small brown planthopper Laodelphax striatellus (SBPH) remain unclear. Here, we studied the effects of tetracycline on the diversity and composition of bacterial colonies in different tissues of SBPH using high throughput sequencing of 16S rRNA amplicons. Read More

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http://dx.doi.org/10.1111/1744-7917.12675DOI Listing

Towards population genomics in non-model species with large genomes: a case study of the marine zooplankton .

R Soc Open Sci 2019 Feb 13;6(2):180608. Epub 2019 Feb 13.

Faculty of Biosciences and Aquaculture, Nord University, Bodø, Norway.

Advances in next-generation sequencing technologies and the development of genome-reduced representation protocols have opened the way to genome-wide population studies in non-model species. However, species with large genomes remain challenging, hampering the development of genomic resources for a number of taxa including marine arthropods. Here, we developed a genome-reduced representation method for the ecologically important marine copepod (haploid genome size of 6. Read More

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http://dx.doi.org/10.1098/rsos.180608DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6408391PMC
February 2019

Partitioning the effects of regional, spatial, and local variables on beta diversity of salt marsh arthropods in Chile.

Ecol Evol 2019 Mar 30;9(5):2575-2587. Epub 2019 Jan 30.

Center of Applied Ecology and Sustainability (CAPES) Pontificia Universidad Católica de Chile Santiago Chile.

Aim: We examined the influence of regional, spatial, and local variables (edaphic characteristics and vegetation structure) on patterns of arthropod variation along the Chilean coast by partitioning beta diversity into its turnover and nestedness components.

Location: 2,000 km along the coast of Chile.

Methods: We collected ground-dwelling arthropod samples from nine marshes during two seasons. Read More

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http://dx.doi.org/10.1002/ece3.4922DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6405494PMC

The sperm pump and genital coupling of Panorpodes kuandianensis (Mecoptera: Panorpodidae).

Arthropod Struct Dev 2019 Mar 16. Epub 2019 Mar 16.

Key Laboratory of Plant Protection Resources and Pest Management, Ministry of Education, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China. Electronic address:

Males of Panorpodidae possess a special sperm pump, through which they directly transfer seminal fluid to the female spermatheca. However, the sperm pump has not been studied in Panorpodes to date. Here, the structure of the sperm pump and the internal coupling of genitalia were investigated in the short-faced scorpionfly Panorpodes kuandianensis (Zhong, Zhang, and Hua, 2011) using light and scanning electron microscopy. Read More

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http://dx.doi.org/10.1016/j.asd.2019.03.002DOI Listing

Life habits and evolutionary biology of new two-winged long-proboscid scorpionflies from mid-Cretaceous Myanmar amber.

Nat Commun 2019 03 15;10(1):1235. Epub 2019 Mar 15.

College of Life Sciences, Capital Normal University, 100048, Beijing, China.

Long-proboscid scorpionflies are enigmatic, mid-Mesozoic insects associated with gymnosperm pollination. One major lineage, Aneuretopsychina, consists of four families plus two haustellate clades, Diptera and Siphonaptera. One clade, Pseudopolycentropodidae, from mid-Cretaceous Myanmar amber, contains Parapolycentropus. Read More

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http://dx.doi.org/10.1038/s41467-019-09236-4DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6420582PMC

Plant diversity alters the representation of motifs in food webs.

Nat Commun 2019 03 15;10(1):1226. Epub 2019 Mar 15.

German Center for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, 04103, Leipzig, Germany.

Changes in the diversity of plant communities may undermine the economically and environmentally important consumer species they support. The structure of trophic interactions determines the sensitivity of food webs to perturbations, but rigorous assessments of plant diversity effects on network topology are lacking. Here, we use highly resolved networks from a grassland biodiversity experiment to test how plant diversity affects the prevalence of different food web motifs, the smaller recurrent sub-networks that form the building blocks of complex networks. Read More

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http://www.nature.com/articles/s41467-019-08856-0
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http://dx.doi.org/10.1038/s41467-019-08856-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6420570PMC
March 2019
4 Reads

What makes the Asian bush mosquito Aedes japonicus japonicus feel comfortable in Germany? A fuzzy modelling approach.

Parasit Vectors 2019 Mar 14;12(1):106. Epub 2019 Mar 14.

Friedrich-Loeffler-Institut (FLI), Federal Research Institute for Animal Health, Südufer 10, 17493, Greifswald, Insel Riems, Germany.

Background: The Asian bush mosquito Aedes japonicus japonicus is an invasive species native to East Asia and has become established in North America and Europe. On both continents, the species has spread over wide areas. Since it is a potential vector of human and livestock pathogens, distribution and dissemination maps are urgently needed to implement targeted surveillance and control in case of disease outbreaks. Read More

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http://dx.doi.org/10.1186/s13071-019-3368-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6417263PMC

Pocket-based Lead Optimization Strategy for the Design and Synthesis of Chitinase Inhibitors.

J Agric Food Chem 2019 Apr 22;67(13):3575-3582. Epub 2019 Mar 22.

Department of Applied Chemistry, College of Science , China Agricultural University , Beijing 100193 , China.

Insect chitinases play an indispensable role in shedding old cuticle during molting. Targeting chitinase inhibition is a promising pest control strategy. Of ChtI, a chitinase from the destructive insect pest Ostrinia furnacalis (Asian corn borer), has been suggested as a potential target for designing green pesticides. Read More

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http://pubs.acs.org/doi/10.1021/acs.jafc.9b00837
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http://dx.doi.org/10.1021/acs.jafc.9b00837DOI Listing
April 2019
11 Reads

Inverse resource allocation between vision and olfaction across the genus Drosophila.

Nat Commun 2019 03 11;10(1):1162. Epub 2019 Mar 11.

Max Planck Institute for Chemical Ecology, Department of Evolutionary Neuroethology, Hans-Knöll-Straße 8, D-07745, Jena, Germany.

Divergent populations across different environments are exposed to critical sensory information related to locating a host or mate, as well as avoiding predators and pathogens. These sensory signals generate evolutionary changes in neuroanatomy and behavior; however, few studies have investigated patterns of neural architecture that occur between sensory systems, or that occur within large groups of closely-related organisms. Here we examine 62 species within the genus Drosophila and describe an inverse resource allocation between vision and olfaction, which we consistently observe at the periphery, within the brain, as well as during larval development. Read More

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http://dx.doi.org/10.1038/s41467-019-09087-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6411718PMC

Identification of the ionotropic GABA receptor-like subunits from the striped stem borer, Chilo suppressalis Walker (Lepidoptera: Pyralidae).

Pestic Biochem Physiol 2019 Mar 9;155:36-44. Epub 2019 Jan 9.

Eco-Environmental Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai Engineering Research Centre of Low-carbon Agriculture, Shanghai 201403, China. Electronic address:

Ionotropic γ-aminobutyric acid (GABA) receptors (GABARs) mediate rapid inhibitory neurotransmission in both vertebrates and invertebrates, and are important molecular targets of insecticides. However, components of insect GABARs remain elusive. In addition to CsRDL1 and CsRDL2, the complementary DNAs (cDNAs) of another two GABA receptor-like subunits, CsLCCH3 and Cs8916, were identified from the rice striped stem borer, Chilo suppressalis Walker in the present study. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00483575183052
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http://dx.doi.org/10.1016/j.pestbp.2019.01.001DOI Listing
March 2019
7 Reads

Independently evolved and gene flow-accelerated pesticide resistance in two-spotted spider mites.

Ecol Evol 2019 Feb 3;9(4):2206-2219. Epub 2019 Feb 3.

Institute of Plant and Environmental Protection Beijing Academy of Agriculture and Forestry Sciences Beijing China.

Pest species are often able to develop resistance to pesticides used to control them, depending on how rapidly resistance can emerge within a population or spread from another resistant population. We examined the evolution of bifenazate resistance in China in the two-spotted spider mite (TSSM) Koch (Acari: Tetranychidae), one of the most resistant arthropods, by using bioassays, detection of mutations in the target gene, and population genetic structure analysis using microsatellite markers. Bioassays showed variable levels of resistance to bifenazate. Read More

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http://dx.doi.org/10.1002/ece3.4916DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6392376PMC
February 2019
1 Read

Dung-associated arthropods influence foraging ecology and habitat selection in Black-necked Cranes () on the Qinghai-Tibet Plateau.

Ecol Evol 2019 Feb 28;9(4):2096-2105. Epub 2019 Jan 28.

Key Laboratory of Bio-resources and Eco-environment of Ministry of Education, College of Life Sciences Sichuan University Chengdu China.

Variation in grassland vegetation structure influences the habitat selection of insectivorous birds. This variation presents a trade-off for insectivorous predators: Arthropod abundance increases with vegetation height and heterogeneity, but access to arthropod prey items decreases. In contrast, grazing by large herbivores reduces and homogenizes vegetation, decreasing total arthropod abundance and diversity. Read More

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http://dx.doi.org/10.1002/ece3.4904DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6392495PMC
February 2019

Nutrients mediate the effects of temperature on methylmercury concentrations in freshwater zooplankton.

Sci Total Environ 2019 Jun 21;667:601-612. Epub 2019 Feb 21.

Department of Environmental Science and Management, Portland State University, PO Box 751, Portland, OR 97201, USA. Electronic address:

Methylmercury (MeHg) bioaccumulation in freshwater aquatic systems is impacted by anthropogenic stressors, including climate change and nutrient enrichment. The goal of this study was to determine how warmer water temperatures and excess nutrients would alter zooplankton communities and phytoplankton concentrations, and whether those changes would in turn increase or decrease MeHg concentrations in freshwater zooplankton. To test this, we employed a 2 × 2 factorial experimental design with nutrient and temperature treatments. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.02.259DOI Listing

Antioxidant defence system is responsible for the toxicological interactions of mixtures: A case study on PFOS and PFOA in Daphnia magna.

Sci Total Environ 2019 Jun 27;667:435-443. Epub 2019 Feb 27.

Department of Environmental Science and Engineering, School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai 200234, China. Electronic address:

Perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) are two types of perfluorinated compounds (PFCs) frequently studied in recent years due to their potential for bioaccumulation and toxicity to humans. Usually, PFCs can co-exist in various environment. Therefore, over- or under-estimated risk assessments would result if antagonism or synergism occurred in mixture toxicity. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.02.418DOI Listing
June 2019
4 Reads

Nanopore sequencing of long ribosomal DNA amplicons enables portable and simple biodiversity assessments with high phylogenetic resolution across broad taxonomic scale.

Gigascience 2019 Mar 2. Epub 2019 Mar 2.

Department of Integrative Biology, University of California, Berkeley, USA.

Background: In light of the current biodiversity crisis, DNA barcoding is developing into an essential tool to quantify state shifts in global ecosystems. Current barcoding protocols often rely on short amplicon sequences, which yield accurate identification of biological entities in a community, but provide limited phylogenetic resolution across broad taxonomic scales. However, the phylogenetic structure of communities is an essential component of biodiversity. Read More

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http://dx.doi.org/10.1093/gigascience/giz006DOI Listing
March 2019
5 Reads

Geochemical and ecological changes within Moira Lake (Ontario, Canada): A legacy of industrial contamination and remediation.

Environ Pollut 2019 Apr 25;247:980-988. Epub 2019 Jan 25.

School of Environmental Studies, 116 Barrie St., Queen's University, Kingston, Ontario, K7L 3J9, Canada; Department of Geological Sciences and Geological Engineering, 36 Union St., Queen's University, Kingston, Ontario, K7L 3N6, Canada.

A sediment core was obtained from Moira Lake to study the legacy of contamination and remediation at the Deloro industrial site which includes 95-years of operations involving gold mining, mineral processing, and arsenic-based pesticide production resulting in high levels of arsenic, cobalt, and nickel. A timeline for the sediment core was established by Pb dating and used to evaluate the geochemical record and the impact on primary production and subfossil cladocerans. In the early 1800s, there was an initial increase in the arsenic, cobalt and nickel concentrations due to industrial development. Read More

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http://dx.doi.org/10.1016/j.envpol.2019.01.019DOI Listing
April 2019
1 Read

Connectivity explains local ant community structure in a Neotropical forest canopy: a large-scale experimental approach.

Ecology 2019 Mar 1:e02673. Epub 2019 Mar 1.

Department of Biology, University of Louisville, Louisville, KY, 40292, USA.

Understanding how habitat structure and resource availability affect local species distributions is a key goal of community ecology. Where habitats occur as a mosaic, variation in connectivity among patches influences both local species richness and composition, and connectivity is a key conservation concern in fragmented landscapes. Similarly, availability of limiting resources frequently determines species co-existence or exclusion. Read More

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http://doi.wiley.com/10.1002/ecy.2673
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http://dx.doi.org/10.1002/ecy.2673DOI Listing
March 2019
10 Reads

Dynamic Responses of Ground-Dwelling Invertebrate Communities to Disturbance in Forest Ecosystems.

Insects 2019 Feb 26;10(3). Epub 2019 Feb 26.

Department of Entomology, The Ohio State University, Ohio Agricultural Research and Development Center, 1680 Madison Ave., Wooster, OH 44691, USA.

In forest ecosystems, natural and anthropogenic disturbances alter canopy structure, understory vegetation, amount of woody debris, and the properties of litter and soil layers. The magnitude of these environmental changes is context-dependent and determined by the properties of the disturbance, such as the frequency, intensity, duration, and extent. Therefore, disturbances can dynamically impact forest communities over time, including populations of ground-dwelling invertebrates that regulate key ecosystem processes. Read More

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http://www.mdpi.com/2075-4450/10/3/61
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http://dx.doi.org/10.3390/insects10030061DOI Listing
February 2019
6 Reads

Molecular cloning and characterization of the β-1,3-glucan recognition protein in Anatolica polita.

Gene 2019 May 22;697:144-151. Epub 2019 Feb 22.

Sichuan University of Science and Engineering, 180 Xueyuan Street, Zigong 643000, China. Electronic address:

β-1,3-Glucan recognition protein (βGRP) is an important pattern recognition protein, which could trigger immune response to eliminate pathogens by identifying and combining the pathogenic bacteria. In the present study, a β-1,3-glucan recognition protein gene (ApβGRP) was cloned from a desert beetle Anatolica polita based on the EST sequence of ApβGRP in the suppression subtractive cDNA library. Quantitative real-time PCR (qRT-PCR) results showed that ApβGRP transcript in A. Read More

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http://dx.doi.org/10.1016/j.gene.2019.02.043DOI Listing
May 2019
2 Reads

Sperm-Leucylaminopeptidases are required for male fertility as structural components of mitochondrial paracrystalline material in Drosophila melanogaster sperm.

PLoS Genet 2019 02 25;15(2):e1007987. Epub 2019 Feb 25.

Department of Genetics, University of Szeged, Szeged, Hungary.

Drosophila melanogaster sperm reach an extraordinary long size, 1.8 mm, by the end of spermatogenesis. The mitochondrial derivatives run along the entire flagellum and provide structural rigidity for flagellar movement, but its precise function and organization is incompletely understood. Read More

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http://dx.doi.org/10.1371/journal.pgen.1007987DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6388916PMC
February 2019
1 Read

Composition and Structure of Thripidae Populations in Crops of Three Geographical Regions in Colombia.

J Insect Sci 2019 Jan;19(1)

Earth and Life Institute, Biodiversity, Université catholique de Louvain, Louvain La Neuve, Belgium.

The composition and structure of thrips populations were determined in agroecosystems of 10 crops in the Andean, Caribbean, and Orinoquia regions of Colombia. From 18,183 identified specimens, 81 species belonging to 20 genera and three families were found. The Andean region was the most diverse with 60 species (n = 11,360, Chao 1 = 70. Read More

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http://dx.doi.org/10.1093/jisesa/iez009DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6388104PMC
January 2019

Systematic significance of antennal segmentation and sense cones in Thripidae (Thysanoptera: Terebrantia).

Zootaxa 2019 Feb 8;4554(1):239-254. Epub 2019 Feb 8.

Key Laboratory of Plant Protection Resources and Pest Management of the Ministry of Education; Entomological Museum, Northwest A&F University, Yangling, Shaanxi, 712100, China Australian National Insect Collection, CSIRO, Canberra, Australia.

Variation is discussed concerning the number of antennal segments in adults, and the number of their sense cones, among 182 of the 289 genera of Thripidae. Brief comments are also made concerning antennal structure and sensoria among the other seven terebrantian families. The plesiotypic condition for Thysanoptera is 9-segmented antennae, but fusion between various segments leads to a reduction in number to as few as five segments, and such fusion occurs in unrelated species. Read More

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http://dx.doi.org/10.11646/zootaxa.4554.1.8DOI Listing
February 2019

A new species of Moina Baird, 1850 (Cladocera: Moinidae) from Thailand.

Zootaxa 2019 Feb 8;4554(1):199-218. Epub 2019 Feb 8.

Ecology Section, Department of Evolutionary Biology, Ecology and Environmental Sciences, Faculty of Biology, University of Barcelona, Avda. Diagonal 643, 08028 Barcelona, Spain..

A new species of Moina Baird, 1850 (Cladocera: Moinidae) is described based on material collected from Thailand (South-East Asia). In tropical Asia, Moina siamensis sp. nov. Read More

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http://dx.doi.org/10.11646/zootaxa.4554.1.6DOI Listing
February 2019
1 Read

Highland biodiversity of Fanniidae (Insecta, Diptera): fourteen new species from the Andes and Central America.

Zootaxa 2019 Jan 31;4551(3):330-360. Epub 2019 Jan 31.

Instituto Superior de Formación Docente Salomé Ureña, Santo Domingo, República Dominicana. Grupo de Entomologia, Instituto de Biología, Universidad de Antioquia, Medellín, Colombia..

In the neotropics, vegetation formations at high elevations are often unique, with their own characteristic vegetation because of unique and complex evolutionary histories. The complexity of the biogeographic and ecological structure of the fauna is demonstrated by the specialized fauna and flora occurring in these regions. Fanniidae (Diptera) is one of these specialized groups that became very diversified in the highlands. Read More

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http://dx.doi.org/10.11646/zootaxa.4551.3.4DOI Listing
January 2019

Coeliccia lecongcoi sp. nov., a new damselfly from the Central Highlands of Vietnam (Odonata: Zygoptera: Platycnemididae).

Authors:
Quoc Toan Phan

Zootaxa 2019 Feb 3;4551(4):471-478. Epub 2019 Feb 3.

Center for Entomology & Parasitology Research, Institute of Research and Training of Medicine, Biology & Pharmacy, Duy Tan University, 3 Quang Trung, Da Nang city, Vietnam..

Coeliccia lecongcoi sp. nov. (holotype ♂, 15. Read More

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http://dx.doi.org/10.11646/zootaxa.4551.4.7DOI Listing
February 2019

Orthobunyavirus spike architecture and recognition by neutralizing antibodies.

Nat Commun 2019 02 20;10(1):879. Epub 2019 Feb 20.

Structural Virology Unit, Virology Department, Institut Pasteur, CNRS UMR 3569, 25-28 rue du Dr. Roux, 75015, Paris, France.

Orthobunyaviruses (OBVs) form a distinct genus of arthropod-borne bunyaviruses that can cause severe disease upon zoonotic transmission to humans. Antigenic drift or genome segment re-assortment have in the past resulted in new pathogenic OBVs, making them potential candidates for causing emerging zoonoses in the future. Low-resolution electron cryo-tomography studies have shown that OBV particles feature prominent trimeric spikes, but their molecular organization remained unknown. Read More

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http://dx.doi.org/10.1038/s41467-019-08832-8DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6382863PMC
February 2019

Insights into pesticide toxicity against aquatic organism: QSTR models on Daphnia Magna.

Ecotoxicol Environ Saf 2019 May 15;173:285-292. Epub 2019 Feb 15.

Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China; Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China. Electronic address:

The toxicities of agrochemicals to non-target aquatic organisms are key items in chemical ecological risk assessment. However, it is still an urgent need to develop new tools to assess the agrochemical aquatic toxicity efficiently and accurately. In this work, QSTR studies were performed on a data set containing 639 diverse pesticides with measured EC toxicity against Daphnia magna, by using five machine learning methods combined with seven fingerprints and a set of molecular descriptors. Read More

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http://dx.doi.org/10.1016/j.ecoenv.2019.02.014DOI Listing

EsTrx-2, the mitochondrial thioredoxin from Antarctic microcrustacean (Euphausia superba): Cloning and functional characterization.

Comp Biochem Physiol B Biochem Mol Biol 2019 May 15;231:52-58. Epub 2019 Feb 15.

College of Marine Science and Biological Engineering, Qingdao University of Science & Technology, Shandong Provincial Key Laboratory of Biochemical Engineering, Qingdao 266042, China.

Thioredoxin system plays an important role in antioxidative stress, thioredoxin 2 (Trx2) being one of the most important components in the thioredoxin system. The full-length cDNA sequence of thioredoxin 2 from Euphausia superba (EsTrx2) is 1276 bp and contain a 5' untranslated region (UTR) of 94 bp, a 3' UTR of 741 bp and an open reading frame (ORF) of 441 bp, encoding a putative protein of 146 amino acids. Multiple sequence alignments have indicated that EsTrx2 possesses a conserved (-Cys-Gly-Pro-Cys-) CGPC redox-active site. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S10964959183025
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http://dx.doi.org/10.1016/j.cbpb.2019.01.014DOI Listing
May 2019
4 Reads

A tale of shells and claws: The signal crayfish as a threat to the pearl mussel Margaritifera margaritifera in Europe.

Sci Total Environ 2019 May 7;665:329-337. Epub 2019 Feb 7.

Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal.

The freshwater pearl mussel Margaritifera margaritifera is a highly threatened species in Europe. Several mechanisms may be responsible for the decline in distribution and abundance of European pearl mussel populations, but almost no quantitative data exists about the possible negative impacts of invasive alien species (IAS). In this study, we clearly demonstrate that the invasive signal crayfish Pacifastacus leniusculus predates pearl mussels, using a laboratorial experiment followed by in situ validation in four rivers in the North of Portugal (Mente, Rabaçal, Tuela and Baceiro Rivers; Douro Basin). Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.02.094DOI Listing

ASPP proteins discriminate between PP1 catalytic subunits through their SH3 domain and the PP1 C-tail.

Nat Commun 2019 02 15;10(1):771. Epub 2019 Feb 15.

Apoptosis and Proliferation Control Laboratory, The Francis Crick Institute, 1 Midland Road, London, NW1 1AT, UK.

Serine/threonine phosphatases such as PP1 lack substrate specificity and associate with a large array of targeting subunits to achieve the requisite selectivity. The tumour suppressor ASPP (apoptosis-stimulating protein of p53) proteins associate with PP1 catalytic subunits and are implicated in multiple functions from transcriptional regulation to cell junction remodelling. Here we show that Drosophila ASPP is part of a multiprotein PP1 complex and that PP1 association is necessary for several in vivo functions of Drosophila ASPP. Read More

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http://dx.doi.org/10.1038/s41467-019-08686-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6377682PMC
February 2019

Morphological study of the urotergite I process in ten species of the genus Triatoma (Hemiptera, Reduviidae, Triatominae).

Acta Trop 2019 Apr 12;192:112-122. Epub 2019 Feb 12.

Laboratory of Entomology in Public Health, Department of Epidemiology, School of Public Health, University of São Paulo, Av. Dr. Arnaldo, 715, Pinheiros, São Paulo, São Paulo, CEP 01246-904, Brazil.

The insects of subfamily Triatominae exhibit many morphological features used for taxonomic identification. In some species, however, these features are very similar. The authors have proposed by first time the description of the structure referred as urotergite I process. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.02.012DOI Listing

A countrywide molecular survey leads to a seminal identification of the invasive cattle tick Rhipicephalus (Boophilus) microplus in Cameroon, a decade after it was reported in Cote d'Ivoire.

Ticks Tick Borne Dis 2019 04 7;10(3):585-593. Epub 2019 Feb 7.

Biosciences eastern and central Africa - International Livestock Research Institute (BecA-ILRI) hub, P.O. Box 30709-00100, Nairobi, Kenya. Electronic address:

The cattle tick Rhipicephalus microplus is the most important arthropod vector of livestock diseases globally. Since its introduction in West Africa a decade ago, it has been reported in Ivory Coast, Benin, Togo, Mali, Burkina Faso and Nigeria with potentially far-reaching adverse impacts on the livestock sector in the region. Cameroon is located on a major route for transboundary cattle trade between Central and West Africa and it is therefore at risk from R. Read More

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http://dx.doi.org/10.1016/j.ttbdis.2019.02.002DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6446184PMC
April 2019
2 Reads
2.718 Impact Factor

The influence of anthropogenic organic matter and nutrient inputs on the food web structure in a coastal lagoon receiving agriculture and shrimp farming effluents.

Sci Total Environ 2019 May 28;664:635-646. Epub 2019 Jan 28.

Centro de Investigación en Alimentación y Desarrollo, A.C. Coordinación de Ciencia de los Alimentos, Unidad Hermosillo, Carretera Gustavo Enrique Astiazarán Rosas 46, Colonia La Victoria, Hermosillo 83304, Sonora, Mexico. Electronic address:

In this study, we elucidated the impacts of allochthonous organic matter (OM) and nutrients (N and P) inputs coming from agriculture and shrimp aquaculture activities on food web structure in a subtropical coastal lagoon located on the central-east of the Gulf of California. This coastal lagoon is highly influenced by OM and nutrients inputs by a large agriculture district and aquaculture development center in Mexico. We also selected a second coastal lagoon, without direct OM and nutrients inputs, considered as a 'pristine' ecosystem. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.01.343DOI Listing

Long-Term Population Studies Uncover the Genome Structure and Genetic Basis of Xenobiotic and Host Plant Adaptation in the Herbivore .

Genetics 2019 04 11;211(4):1409-1427. Epub 2019 Feb 11.

School of Biological Sciences, University of Utah, Salt Lake City, Utah 84112

Pesticide resistance arises rapidly in arthropod herbivores, as can host plant adaptation, and both are significant problems in agriculture. These traits have been challenging to study as both are often polygenic and many arthropods are genetically intractable. Here, we examined the genetic architecture of pesticide resistance and host plant adaptation in the two-spotted spider mite, , a global agricultural pest. Read More

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http://dx.doi.org/10.1534/genetics.118.301803DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6456322PMC
April 2019
1 Read

Seminal fluid production and sperm packaging in dromiid crabs (Brachyura, Podotremata).

Zoology (Jena) 2019 02 19;132:17-30. Epub 2018 Sep 19.

Universidade Estadual Paulista (UNESP), FCAV, Laboratório de Morfologia de Invertebrados (IML), Departamento de Biologia Aplicada à Agropecuária e Centro de Aquicultura da Unesp (CAUNESP), Via de Acesso Prof. Paulo Donato Castellane, s/n, Jaboticabal, 14884-900, São Paulo, Brasil; Universidade Estadual Paulista (UNESP), IB, Avenida 24 A, 1515, Rio Claro, 13506-900, São Paulo, Brasil. Electronic address:

Reproductive anatomy, including sperm storage structures and sperm transfer, is an important feature used to analyze phylogenetic relationships among taxa. We describe the male reproductive anatomy, seminal fluid production and packaging of spermatozoa in the vas deferens of primitive crabs. In all species of Dromiidae, the testes were tubular type and the vas deferens is a tube with a simple epithelium. Read More

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http://dx.doi.org/10.1016/j.zool.2018.09.001DOI Listing
February 2019

Targeting Loxosceles spider Sphingomyelinase D with small-molecule inhibitors as a potential therapeutic approach for loxoscelism.

J Enzyme Inhib Med Chem 2019 Dec;34(1):310-321

a Immunochemistry Laboratory , Butantan Institute , São Paulo , SP , Brazil.

Loxosceles spiders' venoms consist of a mixture of proteins, including the sphingomyelinases D (SMases D), which are the main toxic components responsible for local and systemic effects in human envenomation. Herein, based on the structural information of SMase D from Loxosceles laeta spider venom and virtual docking-based screening approach, three benzene sulphonate compounds (named 1, 5 and 6) were identified as potential Loxosceles SMase D inhibitors. All compounds inhibited the hydrolysis of the sphingomyelin substrate by both recombinant and native SMases D. Read More

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http://dx.doi.org/10.1080/14756366.2018.1546698DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6327989PMC
December 2019
2 Reads

Small, but oh my! Head morphology of adult Aleuropteryx spp. and effects of miniaturization (Insecta: Neuroptera: Coniopterygidae).

Arthropod Struct Dev 2019 Feb 4. Epub 2019 Feb 4.

Natural History Museum Vienna, Zoological Department, Burgring 7, 1010 Vienna, Austria. Electronic address:

We present the first morphological study of the internal head structures of adults of the coniopterygid genus Aleuropteryx, which belong to the smallest known lacewings. The head is ventrally closed with a gula, which is unique in adult Neuroptera and otherwise developed in Megaloptera, the sister group of Neuroptera. The dorsal tentorial arms are directed posteriorly and fused, forming an arch that fulfills functions otherwise taken by the tentorial bridge. Read More

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http://dx.doi.org/10.1016/j.asd.2019.02.001DOI Listing
February 2019

Roll with the fear: environment and state dependence of pill bug (Armadillidium vulgare) personalities.

Naturwissenschaften 2019 Feb 7;106(3-4). Epub 2019 Feb 7.

Behavioural Ecology Group, Department of Systematic Zoology and Ecology, Eötvös Loránd University, Pázmány Péter Sétány 1/c, Budapest, H-1117, Hungary.

Most studies on animal personality evaluate individual mean behaviour to describe individual behavioural strategy, while often neglecting behavioural variability on the within-individual level. However, within-individual behavioural plasticity (variation induced by environment) and within-individual residual variation (regulatory behavioural precision) are recognized as biologically valid components of individual behaviour, but the evolutionary ecology of these components is still less understood. Here, we tested whether behaviour of common pill bugs (Armadillidium vulgare) differs on the among- and within-individual level and whether it is affected by various individual specific state-related traits (sex, size and Wolbachia infection). Read More

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http://dx.doi.org/10.1007/s00114-019-1602-4DOI Listing
February 2019

Caddisfly Assemblages in Metal Contaminated Rivers of the Tikhaya Basin, East Kazakhstan.

Bull Environ Contam Toxicol 2019 Mar 6;102(3):316-322. Epub 2019 Feb 6.

Altai Branch of Kazakh Scientific-Research Institute of Fisheries, Ust-Kamenogorsk, Kazakhstan.

The Ulba river basin is one of the most industrialized regions of Kazakhstan. The development of mining and metallurgical industries has increased pollution of the basin's surface waters by heavy metals, primarily zinc and copper. The taxonomical structure of Trichoptera was studied in reference and impacted reaches of the river basin. Read More

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http://dx.doi.org/10.1007/s00128-019-02561-wDOI Listing
March 2019
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Genetic diversity and population structure of native mitten crab (Eriocheir sensu stricto) by microsatellite markers and mitochondrial COI gene sequence.

Gene 2019 Apr 2;693:101-113. Epub 2019 Feb 2.

Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China; Fish Nutrition and Environmental Ecology Research Center, Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China. Electronic address:

Mitten crab (Eriocheir sensu stricto) is an indigenous and economically important species in East Asia. The genetic diversity and population structure of four wild native Eriocheir s. s. Read More

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http://dx.doi.org/10.1016/j.gene.2018.12.083DOI Listing
April 2019
2 Reads

Structure and Sense Organs of Ovipositors of an Endoparasitoid Aprostocetus causalis and an Ectoparasitoid Quadrastichus mendeli in Leptocybe spp.

Microsc Microanal 2019 02 4;25(1):250-256. Epub 2019 Feb 4.

Guangxi Key Laboratory of Agric-Environment and Agric-Products Safety,National Demonstration Center for Experimental Plant Science Education,College of Agriculture,Guangxi University,Nanning 530004,China.

Little is known of the olfactory mechanisms of host detection in the ovipositors of endoparasitoids and ectoparasitoids. An endoparasitoid Aprostocetus causalis La Salle & Wu (Hymenoptera: Eulophidae) and an ectoparasitoid Quadrastichus mendeli Kim & La Salle (Hymenoptera: Eulophidae: Tetrastichinae) are the two parasitoids of the eucalyptus gall wasp Leptocybe spp. Structures and sense organs of ovipositors of A. Read More

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http://dx.doi.org/10.1017/S1431927618015647DOI Listing
February 2019