Are the Wild and Laboratory Insect Populations Different in Semiochemical Emission? The Case of the Medfly Sex Pheromone

0385206 - ÚOCHB 2013 RIV US eng J - Journal Article
Vaníčková, Lucie - do Nascimento, R. R. - Hoskovec, Michal - Ježková, Z. - Břízová, Radka - Tomčala, Aleš - Kalinová, Blanka
Are the Wild and Laboratory Insect Populations Different in Semiochemical Emission? The Case of the Medfly Sex Pheromone.
Journal of Agricultural and Food Chemistry. Roč. 60, č. 29 (2012), s. 7168-7176. ISSN 0021-8561. E-ISSN 1520-5118
Institutional support: RVO:61388963
Keywords : GC X GC/TOFMS * GC-EAD * principal component analysis
Subject RIV: CC - Organic Chemistry
Impact factor: 2.906, year: 2012

The medfly (Ceratitis capitata) is one of the major agricultural pests controlled through sterile insect technique (SIT) programs We studied the chemical composition of the volatiles released by calling males from one laboratory and two wild C. capitata populations using two-dimensional gas chromatography with time mass spectrometric detection (GC X GC/TOFMS) and gas chromatography with electroantennographic detection (GC-EAD). Multivariate data analyses revealed significant differences in the quantitative and qualitative composition of male chemical emanations between the three populations. The GC-EAD analyses of the male emanation of three C capitata populations revealed 14 antenally active compounds. The volatiles isomenthone, beta-pinene, ethyl octanoate, indole, geraniol, bornyl acetate, geranyl acetone, and (E)-caryophyllene are newly reported EAD active constituents of the male pheromone. GC EM) analyses of the laboratory population indicated that the males and females of C capitata possess comparable sensitivity to male produced volatiles. Our results are relevant to the development of a pheromone based monitoring system and also to the SIT control program.
Permanent Link: http://hdl.handle.net/11104/0214539