| Title: | Chemical Heterogeneity in Inbred European Population of the Invasive Hornet Vespa velutina nigrithorax |
| Author(s): | Gevar J; Bagneres AG; Christides JP; Darrouzet E; |
| Address: | "IRBI, UMR CNRS 7261, University Francois Rabelais of Tours, Parc de Grandmont, 37200, Tours, France. IRBI, UMR CNRS 7261, University Francois Rabelais of Tours, Parc de Grandmont, 37200, Tours, France. eric.darrouzet@univ-tours.fr" |
| DOI: | 10.1007/s10886-017-0874-4 |
| ISSN/ISBN: | 1573-1561 (Electronic) 0098-0331 (Linking) |
| Abstract: | "Invasive social insect populations that have been introduced to a new environment through a limited number of introduction events generally exhibit reduced variability in their chemical signatures (cuticular hydrocarbons) compared to native populations of the same species. The reduced variability in these major recognition cues could be caused by a reduction of genetic diversity due to a genetic bottleneck. This hypothesis was tested in an inbred European population of the invasive hornet Vespa velutina nigrithorax. Our results show that, in spite of the limited amount of genetic diversity present in the European population, the chemical signatures of individuals were highly heterogeneous according to their caste, sex, and colony origin. In queens, some specific saturated and unsaturated hydrocarbons were identified. These results suggest that epigenetic and/or environmental factors could play a role in modifying cuticular hydrocarbon profiles in this introduced hornet population despite the observed reduction of genetic diversity" |
| Keywords: | Animals Female Gas Chromatography-Mass Spectrometry Genetic Variation Hydrocarbons/*analysis/chemistry Introduced Species Male Pheromones/*analysis/chemistry Principal Component Analysis Wasps/*chemistry/genetics Cuticular hydrocarbons Inbreeding Invasive; |
| Notes: | "MedlineGevar, J Bagneres, A-G Christides, J-P Darrouzet, E eng 2017/08/02 J Chem Ecol. 2017 Aug; 43(8):763-777. doi: 10.1007/s10886-017-0874-4. Epub 2017 Jul 31" |
