| Circadian rhythms of adult emergence and activity but not eclosion in males of the parasitic wasp Nasonia vitripennis. | |
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MedLine Citation:
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PMID: 20226192 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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An endogenous circadian system is responsible for the rhythms observed in many physiological and behavioural traits in most organisms. In insects, the circadian system controls the periodicity of eclosion, egg-laying, locomotor and mating activity. The parasitoid wasp Nasonia vitripennis has been extensively used to study the role of the circadian system in photoperiodism. In this study, behavioural activities expected to be under the control of the endogenous circadian system were characterized in Nasonia. Male emergence from the host puparium is rhythmic under light-darkness conditions while eclosion from the own pupal integument is not rhythmic but continuous. Following entrainment in light-dark conditions, males show robust free-running circadian activity rhythms with a period (tau, tau) of approximately 25.6h in constant darkness. While the endogenous circadian system is enough to trigger male emergence in Nasonia, light seems to have a modulatory effect: when present it induces more males to emerge. Our results add to the understanding of chronobiological phenotypes in insects and provide a basis towards the molecular characterization of the endogenous circadian system in Nasonia. |
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Authors:
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Rinaldo C Bertossa; Jeroen van Dijk; Domien G Beersma; Leo W Beukeboom |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-03-16 |
Journal Detail:
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Title: Journal of insect physiology Volume: 56 ISSN: 1879-1611 ISO Abbreviation: J. Insect Physiol. Publication Date: 2010 Jul |
Date Detail:
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Created Date: 2010-05-31 Completed Date: 2010-09-14 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 2985080R Medline TA: J Insect Physiol Country: England |
Other Details:
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Languages: eng Pagination: 805-12 Citation Subset: IM |
Copyright Information:
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Copyright 2010 Elsevier Ltd. All rights reserved. |
Affiliation:
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Chronobiology, Center for Behavior and Neurosciences, University of Groningen, P.O. Box 14, 9750 AA Haren, The Netherlands. r.c.bertossa@rug.nl |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Circadian Rhythm* / radiation effects Diptera / growth & development, parasitology* Female Host-Parasite Interactions* Light Male Species Specificity Wasps / growth & development*, physiology*, radiation effects |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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