Are the wild and laboratory insect populations different in semiochemical emission? The case of the medfly sex pheromone
| Autor: | Radka Břízová, Michal Hoskovec, Ruth Rufino Do Nascimento, Lucie Vaníčková, Blanka Kalinová, Aleš Tomčala, Zuzana Ježková |
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| Rok vydání: | 2012 |
| Předmět: |
Male
Chromatography Gas Population Biology Gas Chromatography-Mass Spectrometry Mass Spectrometry Sterile insect technique Animals Laboratory Botany Animals Sex Attractants Semiochemical education education.field_of_study Volatile Organic Compounds General Chemistry Ceratitis capitata biology.organism_classification Horticulture Sex pheromone Capitata Pheromone Female Gas chromatography General Agricultural and Biological Sciences |
| Zdroj: | Journal of agricultural and food chemistry. 60(29) |
| ISSN: | 1520-5118 |
| Popis: | 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-of-flight mass spectrometric detection (GC × 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, β-pinene, ethyl octanoate, indole, geraniol, bornyl acetate, geranyl acetone, and (E)-caryophyllene are newly reported EAD active constituents of the male pheromone. GC-EAD 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. |
| Databáze: | OpenAIRE |
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