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Sci Rep

Title:		Synthetic pheromones and plant volatiles alter the expression of chemosensory genes in Spodoptera exigua
Author(s):		Wan X; Qian K; Du Y;
Address:		"Institute of Health and Environmental Ecology, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China"
Journal Title:		Sci Rep
Year:		2015
Volume:		20151127
Issue:
Page Number:		17320 -
DOI:		10.1038/srep17320
ISSN/ISBN:		2045-2322 (Electronic) 2045-2322 (Linking)
Abstract:		"Pheromone and plant odorants are important for insect mating, foraging food sources and oviposition. To understand the molecular mechanisms regulating pheromone and odorant signaling, we employed qRT-PCR to study the circadian rhythms of ABP, OBP, PBP, and OR gene expression in the beet armyworm, Spodoptera exigua and their responses after a pre-exposure to sex pheromone compounds or plant volatiles. The neuronal responses of male S. exigua to 20 chemical compounds were recorded at three specific time periods using the electroantennogram. The results showed a circadian rhythm in the expression profiles of some chemosensory genes in the antennae similar to their behavioral rhythm. The expression profiles of OR3, OR6, OR11, OR13, OR16, OR18, Orco, ABP2, OBP1, OBP7, and PBP1, and EAG responses to chemical compounds, as well as their circadian rhythm were significantly affected after exposure to synthetic sex pheromones and plant volatiles. These findings provide the first evidence that the gene expression of chemosensory genes and olfactory sensitivity to sex pheromones are affected by pre-exposing insects to pheromone compounds and plant volatiles. It helps to understand the molecular mechanisms underlying pheromone activity, and the application of sex pheromones and plant volatiles in mating disruption or mass trapping"
Keywords:		Action Potentials/drug effects/physiology Animals Arthropod Antennae/drug effects/physiology Circadian Rhythm/drug effects/physiology Female Gene Expression Regulation/*drug effects Male Neurons/cytology/drug effects/physiology Olfactory Perception/*drug;
Notes:		"MedlineWan, Xinlong Qian, Kai Du, Yongjun eng Research Support, Non-U.S. Gov't England 2015/11/28 Sci Rep. 2015 Nov 27; 5:17320. doi: 10.1038/srep17320"