Cricket Paralysis Virus
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The Efficiency of Sound Production in Two Cricket Species, Gryllotalpa Australis and Teleogryllus Commodus (Orthoptera: Grylloidea)
J. exp. Biol. 130, 107-119 (1987) 107 Printed in Great Britain © The Company of Biologists Limited 1987 THE EFFICIENCY OF SOUND PRODUCTION IN TWO CRICKET SPECIES, GRYLLOTALPA AUSTRALIS AND TELEOGRYLLUS COMMODUS (ORTHOPTERA: GRYLLOIDEA) BY MARK W. KAVANAGH Department of Zoology, University of Melbourne, Parkville, Victoria, 3052, Australia Accepted 27 February 1987 SUMMARY 1. Males of Gryllotalpa australis (Erichson) (Gryllotalpidae) and Teleogryllus commodus (Walter) (Gryllidae) produced their calling songs while confined in respirometers. 2. G. australis males used oxygen during calling at a mean rate of 4-637 ml O2h^', equivalent to 27-65mW of metabolic energy, which was 13 times higher than the resting metabolic rate. T. commodus males used oxygen during calling at a rate of 0-728 ml O2h~', equivalent to 4-34mW, which was four times the resting metabolic rate. 3. The sound field during calling by males represents a sound power output of 0-27 mW for G. australis and l-51XlO~3mW for T. commodus. 4. The efficiency of sound production was 1-05% for males of G. australis and 0-05 % for males of T. commodus. Comparison with other insect species suggests that none is more than a few percent efficient in sound production. INTRODUCTION Many insect species produce stereotyped acoustic signals that are important in intraspecific communication. In most species that communicate by sound, the male's calling song, which seems to attract conspecific females, is the most obvious and the most important component of the repertoire. Production of the calling song will involve a cost to the producer in the form of an increased use of metabolic energy. -
Under Percent
Listing Statement for Catadromus lacordairei (Green-lined Ground Beetle) Catadromus lacordairei Under percent Green-lined Ground Beetle T A S M A N I A N T H R E A T E N E D S P E C I E S L I S T I N G S T A T E M E N T Image Spencer & Richards Common name: Green-lined Ground Beetle Scientific name: Catadromus lacordairei Boisduval, 1835 Group: Invertebrate, Class Hexapoda, Order Coleoptera, Family Carabidae Name history: Catadromus Carabid Beetle Status: Threatened Species Protection Act 1995: vulnerable Environment Protection and Biodiversity Conservation Act 1999: Not listed IUCN Red List: Not listed Distribution: Endemic status: Not endemic to Tasmania Tasmanian NRM Regions: South, North 1 cm Figure 1. The distribution of the Green-lined Plate 1. The Green-lined Ground Beetle (images Ground Beetle in Tasmania, showing NRM regions Spencer & Richards) 1 Threatened Species Section – Department of Primary Industries, Parks, Water and Environment Listing Statement for Catadromus lacordairei (Green-lined Ground Beetle) SUMMARY specialist soil-dwelling predators. Nothing has The Green-lined Ground Beetle is a large and been recorded of the pupal phase. predatory ground-dwelling beetle, shiny black Adult Green-lined Ground Beetles are in colour and with a distinctive metallic green opportunistic predators/scavengers, taking a line down the other side of the body. The wide range of invertebrate prey, including species has only been recorded from a small oligochaetes (worms), coleopteran (beetle) number of sites in Tasmania, mainly in the larvae, dipteran (fly) larvae, Teleogryllus commodus northern and central Midlands. -
Virus Particle Structures
Virus Particle Structures Virus Particle Structures Palmenberg, A.C. and Sgro, J.-Y. COLOR PLATE LEGENDS These color plates depict the relative sizes and comparative virion structures of multiple types of viruses. The renderings are based on data from published atomic coordinates as determined by X-ray crystallography. The international online repository for 3D coordinates is the Protein Databank (www.rcsb.org/pdb/), maintained by the Research Collaboratory for Structural Bioinformatics (RCSB). The VIPER web site (mmtsb.scripps.edu/viper), maintains a parallel collection of PDB coordinates for icosahedral viruses and additionally offers a version of each data file permuted into the same relative 3D orientation (Reddy, V., Natarajan, P., Okerberg, B., Li, K., Damodaran, K., Morton, R., Brooks, C. and Johnson, J. (2001). J. Virol., 75, 11943-11947). VIPER also contains an excellent repository of instructional materials pertaining to icosahedral symmetry and viral structures. All images presented here, except for the filamentous viruses, used the standard VIPER orientation along the icosahedral 2-fold axis. With the exception of Plate 3 as described below, these images were generated from their atomic coordinates using a novel radial depth-cue colorization technique and the program Rasmol (Sayle, R.A., Milner-White, E.J. (1995). RASMOL: biomolecular graphics for all. Trends Biochem Sci., 20, 374-376). First, the Temperature Factor column for every atom in a PDB coordinate file was edited to record a measure of the radial distance from the virion center. The files were rendered using the Rasmol spacefill menu, with specular and shadow options according to the Van de Waals radius of each atom. -
Virus Relatedness Predicts Susceptibility in Novel Host Species
bioRxiv preprint doi: https://doi.org/10.1101/2021.02.16.431403; this version posted February 16, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY 4.0 International license. Imrie et al. Virus relatedness predicts host susceptibility. 1 1 Virus relatedness predicts susceptibility in novel host species 2 3 Ryan M. Imrie*, Katherine E. Roberts, Ben Longdon 4 5 Centre for Ecology & Conservation, Biosciences, College of Life and Environmental Sciences, 6 University of Exeter, Penryn Campus, Penryn, Cornwall 7 *corresponding author: [email protected] 8 9 10 11 Abstract 12 As a major source of outbreaks and emerging infectious diseases, virus host shifts cause significant 13 health, social and economic damage. Predicting the outcome of infection with novel combinations of 14 virus and host remains a key challenge in virus research. Host evolutionary relatedness can explain 15 variation in transmission rates, virulence, and virus community composition between host species, 16 but there is much to learn about the potential for virus evolutionary relatedness to explain variation 17 in the ability of viruses to infect novel hosts. Here, we measure correlations in the outcomes of 18 infection across 45 Drosophilidae host species with four Cripavirus isolates that vary in their 19 evolutionary relatedness. We found positive correlations between every pair of viruses tested, with 20 the strength of correlation tending to decrease with greater evolutionary distance between viruses. 21 These results suggest that virus evolutionary relatedness can explain variation in the outcome of 22 host shifts and may be a useful proxy for determining the likelihood of novel virus emergence. -
An Alternative Hypothesis for the Evolution of Same-Sex Sexual Behaviour in Animals
PERSPECTIVE https://doi.org/10.1038/s41559-019-1019-7 Corrected: Author Correction An alternative hypothesis for the evolution of same-sex sexual behaviour in animals Julia D. Monk 1*, Erin Giglio 2, Ambika Kamath3,4, Max R. Lambert 4 and Caitlin E. McDonough 5 Same-sex sexual behaviour (SSB) has been recorded in over 1,500 animal species with a widespread distribution across most major clades. Evolutionary biologists have long sought to uncover the adaptive origins of ‘homosexual behaviour’ in an attempt to resolve this apparent Darwinian paradox: how has SSB repeatedly evolved and persisted despite its presumed fitness costs? This question implicitly assumes that ‘heterosexual’ or exclusive different-sex sexual behaviour (DSB) is the baseline condition for animals, from which SSB has evolved. We question the idea that SSB necessarily presents an evolutionary conundrum, and suggest that the literature includes unchecked assumptions regarding the costs, benefits and origins of SSB. Instead, we offer an alternative null hypothesis for the evolutionary origin of SSB that, through a subtle shift in perspective, moves away from the expectation that the origin and maintenance of SSB is a problem in need of a solution. We argue that the frequently implicit assumption of DSB as ancestral has not been rigorously examined, and instead hypothesize an ancestral condition of indiscrimi- nate sexual behaviours directed towards all sexes. By shifting the lens through which we study animal sexual behaviour, we can more fruitfully examine the evolutionary history of diverse sexual strategies. ince Charles Darwin1,2 first recognized natural and sexual this apparent paradox have taken the form of taxon-specific searches selection as engines of evolutionary change, considerations of for adaptive and non-adaptive explanations of SSB (reviewed in Ssex and fitness in evolutionary biology have largely focused refs. -
Structure of Nora Virus at 2.7 Å Resolution and Implications for Receptor Binding, Capsid Stability and Taxonomy
This document is downloaded from the VTT’s Research Information Portal https://cris.vtt.fi VTT Technical Research Centre of Finland Structure of Nora virus at 2.7 Å resolution and implications for receptor binding, capsid stability and taxonomy Laurinmäki, Pasi; Shakeel, Shabih; Ekström, Jens Ola; Mohammadi, Pezhman; Hultmark, Dan; Butcher, Sarah J. Published in: Scientific Reports DOI: 10.1038/s41598-020-76613-1 Published: 01/12/2020 Document Version Publisher's final version License CC BY Link to publication Please cite the original version: Laurinmäki, P., Shakeel, S., Ekström, J. O., Mohammadi, P., Hultmark, D., & Butcher, S. J. (2020). Structure of Nora virus at 2.7 Å resolution and implications for receptor binding, capsid stability and taxonomy. Scientific Reports, 10(1), [19675]. https://doi.org/10.1038/s41598-020-76613-1 VTT By using VTT’s Research Information Portal you are bound by the http://www.vtt.fi following Terms & Conditions. P.O. box 1000FI-02044 VTT I have read and I understand the following statement: Finland This document is protected by copyright and other intellectual property rights, and duplication or sale of all or part of any of this document is not permitted, except duplication for research use or educational purposes in electronic or print form. You must obtain permission for any other use. Electronic or print copies may not be offered for sale. Download date: 03. Oct. 2021 www.nature.com/scientificreports OPEN Structure of Nora virus at 2.7 Å resolution and implications for receptor binding, capsid stability and taxonomy Pasi Laurinmäki 1,2,7, Shabih Shakeel 1,2,5,7, Jens‑Ola Ekström3,4,7, Pezhman Mohammadi 1,6, Dan Hultmark 3,4 & Sarah J. -
Emerging Viral Diseases of Fish and Shrimp Peter J
Emerging viral diseases of fish and shrimp Peter J. Walker, James R. Winton To cite this version: Peter J. Walker, James R. Winton. Emerging viral diseases of fish and shrimp. Veterinary Research, BioMed Central, 2010, 41 (6), 10.1051/vetres/2010022. hal-00903183 HAL Id: hal-00903183 https://hal.archives-ouvertes.fr/hal-00903183 Submitted on 1 Jan 2010 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Vet. Res. (2010) 41:51 www.vetres.org DOI: 10.1051/vetres/2010022 Ó INRA, EDP Sciences, 2010 Review article Emerging viral diseases of fish and shrimp 1 2 Peter J. WALKER *, James R. WINTON 1 CSIRO Livestock Industries, Australian Animal Health Laboratory (AAHL), 5 Portarlington Road, Geelong, Victoria, Australia 2 USGS Western Fisheries Research Center, 6505 NE 65th Street, Seattle, Washington, USA (Received 7 December 2009; accepted 19 April 2010) Abstract – The rise of aquaculture has been one of the most profound changes in global food production of the past 100 years. Driven by population growth, rising demand for seafood and a levelling of production from capture fisheries, the practice of farming aquatic animals has expanded rapidly to become a major global industry. -
Immune Function Reflected in Calling Song Characteristics in a Natural
ANIMAL BEHAVIOUR, 2005, 69, 1235–1241 doi:10.1016/j.anbehav.2004.09.011 Immune function reflected in calling song characteristics in a natural population of the cricket Teleogryllus commodus LEIGH W. SIMMONS*,MARLENEZUK† &JOHNT.ROTENBERRY† *Evolutionary Biology Research Group, School of Animal Biology (M092), The University of Western Australia yDepartment of Biology, University of California, Riverside (Received 9 February 2004; initial acceptance 30 March 2004; final acceptance 24 September 2004; published online 17 February 2005; MS. number: 7999R) Secondary sexual traits have been suggested to provide reliable signals of a male’s ability to resist infection by agents of disease. The immunocompetence handicap hypothesis provides a potential mechanism for reliable signalling in the form of a trade-off between expenditure on trait expression and expenditure on immunity. Thus, males resistant to disease can spend more resources on their sexual signals. Examination of calling song parameters in a natural population of the cricket Teleogryllus commodus revealed that males scoring higher on the third principal component for song had significantly lower ability to encapsulate a foreign object. This component of immune function was associated with syllables of longer duration in both the trill and chirp elements of the song. Males with longer syllables in their song had a lower encapsulation ability. Syllable duration is known to influence phonotaxis by female T. commodus. Although the effect was only weak, our data suggest that females may base their choice of mate on reliable information contained within the temporal properties of male calls. Our study thus demonstrates a connection between sexual signalling and immune function in a natural population of insects and lends support to the immunocompetence handicap hypothesis. -
Variation and Repeatability of Calling Behavior in Crickets Subject to a Phonotactic Parasitoid Fly
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by DigitalCommons@CalPoly Variation and Repeatability of Calling Behavior in Crickets Subject to a Phonotactic Parasitoid Fly Gita Raman Kolluru1 Male Teleogryllus oceanicus (Orthoptera: Gryllidae) produce a conspicuous calling song to attract females. In some populations, the song also attracts the phonotactic parasitoid fly Ormia ochracea (Diptera: Tachinidae). I examined the factors affecting calling song by characterizing the calling behavior of caged crickets from an area where the fly occurs. Calling activity (proportion of time spent calling) was repeatable and a significant predictor of female attraction. However, calling activity in the parasitized population was lower than in an unparasitized Moorea population (Orsak, 1988), suggesting a compromise between high activity to attract females and low activity to avoid flies. Calling activity peaked simultaneously with fly searching, so crickets did not shift to calling when the fly is less active. Males harboring larvae did not call less than unparasitized males; however, a more controlled study of the effects of parasitization on calling behavior is needed to evaluate this result. The results are discussed in the context of other studies of the evolutionary consequences of sexual and natural selection on cricket calling behavior. KEY WORDS: crickets; acoustic signals; calling duration; calling activity; calling patterns; phonotactic parasitoids; repeatability; Orthoptera; Gryllidae; Teleogryllus; Ormia. INTRODUCTION Male field crickets produce a conspicuous, long-range calling song to attract females for mating. However, the song may also attract acoustically-orienting natural enemies (Zuk and Kolluru, 1998). Therefore, both sexual selection and natural selection by eavesdropping enemies can shape the evolution of cricket 1 Department of Biology, University of California, Riverside, California 92521. -
2008.005I (To Be Completed by ICTV Officers)
Taxonomic proposal to the ICTV Executive Committee This form should be used for all taxonomic proposals. Please complete all those modules that are applicable (and then delete the unwanted sections). Code(s) assigned: 2008.005I (to be completed by ICTV officers) Short title: Creation of a new species in the genus, Cripavirus, family Dicistroviridae (e.g. 6 new species in the genus Zetavirus; re-classification of the family Zetaviridae etc.) Modules attached 1 2 3 4 5 (please check all that apply): 6 7 Author(s) with e-mail address(es) of the proposer: Dicistroviridae Study Group: Nobuhiko Nakashima ([email protected]), Karyn Johnson ([email protected]); Frank van der Wilk ([email protected]); Les Domier: ([email protected]); Peter Christian ([email protected]); Judy Chen ([email protected]) ; Tamas Bakonyi ([email protected]). ICTV-EC or Study Group comments and response of the proposer: MODULE 5: NEW SPECIES Code 2008.005I (assigned by ICTV officers) To create Homalodisca coagulata virus-1, a new species assigned as follows: Fill in all that apply. Ideally, species Genus: Cripavirus should be placed within a genus, but Subfamily: it is acceptable to propose a species Family: Dicistroviridae that is within a Subfamily or Family Order: Picornavirales but not assigned to an existing genus (in which case put “unassigned” in the genus box) Name(s) of proposed new species: Homalodisca coagulata virus-1 Argument to justify the creation of the new species: If the species are to be assigned to an existing genus, list the criteria for species demarcation and explain how the proposed members meet these criteria. -
ARTHROPODA Subphylum Hexapoda Protura, Springtails, Diplura, and Insects
NINE Phylum ARTHROPODA SUBPHYLUM HEXAPODA Protura, springtails, Diplura, and insects ROD P. MACFARLANE, PETER A. MADDISON, IAN G. ANDREW, JOCELYN A. BERRY, PETER M. JOHNS, ROBERT J. B. HOARE, MARIE-CLAUDE LARIVIÈRE, PENELOPE GREENSLADE, ROSA C. HENDERSON, COURTenaY N. SMITHERS, RicarDO L. PALMA, JOHN B. WARD, ROBERT L. C. PILGRIM, DaVID R. TOWNS, IAN McLELLAN, DAVID A. J. TEULON, TERRY R. HITCHINGS, VICTOR F. EASTOP, NICHOLAS A. MARTIN, MURRAY J. FLETCHER, MARLON A. W. STUFKENS, PAMELA J. DALE, Daniel BURCKHARDT, THOMAS R. BUCKLEY, STEVEN A. TREWICK defining feature of the Hexapoda, as the name suggests, is six legs. Also, the body comprises a head, thorax, and abdomen. The number A of abdominal segments varies, however; there are only six in the Collembola (springtails), 9–12 in the Protura, and 10 in the Diplura, whereas in all other hexapods there are strictly 11. Insects are now regarded as comprising only those hexapods with 11 abdominal segments. Whereas crustaceans are the dominant group of arthropods in the sea, hexapods prevail on land, in numbers and biomass. Altogether, the Hexapoda constitutes the most diverse group of animals – the estimated number of described species worldwide is just over 900,000, with the beetles (order Coleoptera) comprising more than a third of these. Today, the Hexapoda is considered to contain four classes – the Insecta, and the Protura, Collembola, and Diplura. The latter three classes were formerly allied with the insect orders Archaeognatha (jumping bristletails) and Thysanura (silverfish) as the insect subclass Apterygota (‘wingless’). The Apterygota is now regarded as an artificial assemblage (Bitsch & Bitsch 2000). -
1 Studies on Two Genomic Variants of Taura
Studies on Two Genomic Variants of Taura Syndrome Virus: Infection under Hyperthermic Conditions and Detection with a Novel Monoclonal Antibody Item Type text; Electronic Dissertation Authors Cote, Isabelle Publisher The University of Arizona. Rights Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author. Download date 09/10/2021 11:46:35 Link to Item http://hdl.handle.net/10150/195556 1 STUDIES ON TWO GENOMIC VARIANTS OF TAURA SYNDROME VIRUS: INFECTION UNDER HYPERTHERMIC CONDITIONS AND DETECTION WITH A NOVEL MONOCLONAL ANTIBODY by Isabelle Côté __________________________________ A Dissertation Submitted to the Faculty of the DEPARTMENT OF VETERINARY SCIENCE AND MICROBIOLOGY In Partial Fulfilment of the Requirements For the Degree of DOCTOR OF PHILOSPHY WITH A MAJOR IN MICROBIOLOGY In the Graduate College THE UNIVERSITY OF ARIZONA 2008 2 THE UNIVERSITY OF ARIZONA GRADUATE COLLEGE As members of the Dissertation Committee, we certify that we have read the dissertation prepared by Isabelle Côté entitled: "Studies on Two Genomic Variants of Taura Syndrome Virus: Infection under Hyperthermic Conditions and Detection with a Novel Monoclonal Antibody” and recommend that it be accepted as fulfilling the dissertation requirement for the Degree of Doctor of Philosophy. _______________________________________________ Date: __06/09/2008_______ Donald V. Lightner, Ph.D. _______________________________________________ Date: __06/09/2008_______ Bonnie T. Poulos, Ph.C. _______________________________________________ Date: __06/09/2008_______ Michael A. Cusanovich, Ph.D. _______________________________________________ Date: __06/09/2008_______ Carol L.