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Preimaginal exposure to azadirachtin affects fecundity and oviposition site preference in two successive generations of Drosophila melanogaster (Diptera: Drosophilidae)
European Food Chemistry & Eating Disorder Congress
July 26-27, 2018 | Amsterdam, Netherlands
Maroua Ferdenache,Samira Kilani-Morakchi, RadiaBezzar-Bendjazia and Frederic Marion-Poll
Badji Mokhtar University, Algeria
University of Paris-Sud, France
Scientific Tracks Abstracts: J Food Process Techno
Abstract:
Azadirachtin, is a biorational insecticide, is one of the prominent biopesticide commercialized today and represent an alternative to conventional insecticides. In this study, we aimed at assessing the lethal and sublethal behavioral and physiological effects of azadirachtin on Drosophila melanogaster Meigen, 1830 (Diptera: Drosophilidae) as biological model. Early third instar larvae (L3) of parental generation (F0) were exposed topically to azadirachtin at two doses DL25 (0.28 ?g) and DL50 (0.68 ?g). Its effects were evaluated on fecundity and oviposition site preference with and without choice in two successive generations (F0: exposed and F1: non-exposed). Azadirachtin affected fecundity of flies by a significant reduction of the number of eggs laid of the two tested generations. Results showed that, females present a clear preference for oviposition in control medium. Pre-imaginal exposure (L3) to azadirachtin increased aversion to this substance in comparison to naive flies. Results strongly support that azadirachtininduced transgenerationaly inheritance of behavioral traits that may be due to epigenetic modifications.
Biography :
Maroua Ferdenache has completed her Master's degree in Biology from the University of Annaba, Algeria, graduated with first class honors and she is the winner of the Doctoral competition. Last year, she got a scholarship to Paris-Saclay University. Now, she is pursuing her PhD at the French National Center for Scientific Research (CNRS) in Paris, France. She has participated in three conferences and till now, she has two papers in reputed journals.
E-mail: maroua.ferdenache@gmail.com