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Artificial light at night influences clock-gene expression, activity, and fecundity in the mosquito Culex pipiens f. Molestus
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
 
ID 4522441
Author(s) Honnen, A. C.; Kypke, J. L.; Hölker, F.; Monaghan, M. T.
Author(s) at UniBasel Honnen, Ann-Christin
Year 2019
Title Artificial light at night influences clock-gene expression, activity, and fecundity in the mosquito Culex pipiens f. Molestus
Journal Sustainability: Science, Practice and Policy
Volume 11
Number 22
Pages / Article-Number 6220
Abstract Light is an important environmental cue, and exposure to artificial light at night (ALAN) may disrupt organismal physiology and behavior. We investigated whether ALAN led to changes in clock-gene expression, diel activity patterns, and fecundity in laboratory populations of the mosquito Culex pipiens f. molestus (Diptera, Culicidae), a species that occurs in urban areas and is thus regularly exposed to ALAN. Populations were kept under 16hours (h):8h light:dark cycles or were subjected to an additional 3.5 h of light (100–300 lx) in the evenings. ALAN induced significant changes in expression in all genes studied, either alone (period) or as an interaction with time (timeless, cryptochrome2, Clock, cycle). Changes were sex-specific: period was down-regulated in both sexes, cycle was up-regulated in females, and Clock was down-regulated in males. ALAN-exposed mosquitoes were less active during the extra-light phase, but exposed females were more active later in the night. ALAN-exposed females also produced smaller and fewer eggs. Our findings indicate a sex-specific impact of ALAN on the physiology and behavior of Culex pipiens f. molestus and that changes in clock-gene expression, activity, and fecundity may be linked.
Publisher Taylor & Francis
ISSN/ISBN 1548-7733
edoc-URL https://edoc.unibas.ch/73496/
Full Text on edoc Available
Digital Object Identifier DOI 10.3390/su11226220
ISI-Number WOS:000503277900033
Document type (ISI) Article
 
   

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