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Completed
Genetic basis of baculovirus-induced behaviour of insects
FunderNetherlands Organisation for Scientific Research (NWO)
Duration01 Aug 2006 - 07 Dec 2010
Project code836.05.070
Identifiers
Project timeline100%
Description
Behavioural changes of insects associated with baculovirus infection secure optimal dissemination of progeny virus in the environment. Baculoviruses have been reported in more than 600 insect species and are used as biological control agents. Infected insects show a radical change in behaviour as they become hypermobile and attracted by light resulting in their movement towards the canopy of plants or trees. There they die from the virus infection and spray the progeny virus over the foliage, thereby increasing the chance of establishing a new round of infection in other insects. The induced phototaxis exposes both the infected insects and the progeny virus to enhanced doses of sunlight and a trade-off is expected between optimal virus dissemination and inactivation by ultraviolet light (UV). The central hypothesis of this project is that baculoviruses, besides known genes for virus replication and virion structure, contain genes to modulate their host, including genes that alter host behaviour. The aims of this proposal are (i) to identify the viral genes responsible for altered insect behaviour and (ii) to unravel the pathways that transduce the virus-encoded signal in the insect and explain the changes in behaviour. In parallel, the function of recently discovered DNA photolyase genes will be analyzed. Photolyases have a potential function in repairing DNA lesions induced by UV light and the question is whether these genes provide a solution against UV exposure. With the proposed coupling of genes and behaviour a new research area will be explored to understand baculovirus ecology.
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Behavioural changes of insects associated with baculovirus infection secure optimal dissemination of progeny virus in the environment. Baculoviruses have been reported in more than 600 insect species and are used as biological control agents. Infected insects show a radical change in behaviour as they become hypermobile and attracted by light resulting in their movement towards the canopy of plants or trees. There they die from the virus infection and spray the progeny virus over the foliage, thereby increasing the chance of establishing a new round of infection in other insects. The induced phototaxis exposes both the infected insects and the progeny virus to enhanced doses of sunlight and a trade-off is expected between optimal virus dissemination and inactivation by ultraviolet light (UV). The central hypothesis of this project is that baculoviruses, besides known genes for virus replication and virion structure, contain genes to modulate their host, including genes that alter host behaviour. The aims of this proposal are (i) to identify the viral genes responsible for altered insect behaviour and (ii) to unravel the pathways that transduce the virus-encoded signal in the insect and explain the changes in behaviour. In parallel, the function of recently discovered DNA photolyase genes will be analyzed. Photolyases have a potential function in repairing DNA lesions induced by UV light and the question is whether these genes provide a solution against UV exposure. With the proposed coupling of genes and behaviour a new research area will be explored to understand baculovirus ecology.
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Provider Academic Bibliometrics & Assessment Computational Utility Service Expiration Session Name greekSession Description Stores the user session ID for Academic Bibliometrics & Assessment Computational Utility Service. Provider Academic Bibliometrics & Assessment Computational Utility Service Expiration Session Name greekSession Description Stores the user session ID for Academic Bibliometrics & Assessment Computational Utility Service. Provider Academic Bibliometrics & Assessment Computational Utility Service Expiration Session Name greekSession Description Stores the user session ID for Academic Bibliometrics & Assessment Computational Utility Service. Provider Academic Bibliometrics & Assessment Computational Utility Service Expiration Session Name greekSession Description Stores the user session ID for Academic Bibliometrics & Assessment Computational Utility Service. 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Provider Academic Bibliometrics & Assessment Computational Utility Service Expiration Session Name greekSession Description Stores the user session ID for Academic Bibliometrics & Assessment Computational Utility Service. Provider Academic Bibliometrics & Assessment Computational Utility Service Expiration Session Name greekSession Description Stores the user session ID for Academic Bibliometrics & Assessment Computational Utility Service. Provider Academic Bibliometrics & Assessment Computational Utility Service Expiration Session Name greekSession Description Stores the user session ID for Academic Bibliometrics & Assessment Computational Utility Service. Provider Academic Bibliometrics & Assessment Computational Utility Service Expiration Session Name greekSession Description Stores the user session ID for Academic Bibliometrics & Assessment Computational Utility Service. 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Provider Academic Bibliometrics & Assessment Computational Utility Service Expiration Session Name greekSession Description Stores the user session ID for Academic Bibliometrics & Assessment Computational Utility Service. Provider Academic Bibliometrics & Assessment Computational Utility Service Expiration Session Name greekSession Description Stores the user session ID for Academic Bibliometrics & Assessment Computational Utility Service. Provider Academic Bibliometrics & Assessment Computational Utility Service Expiration Session Name greekSession Description Stores the user session ID for Academic Bibliometrics & Assessment Computational Utility Service. Provider Academic Bibliometrics & Assessment Computational Utility Service Expiration Session Name greekSession Description Stores the user session ID for Academic Bibliometrics & Assessment Computational Utility Service. 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