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4-Methylquinazoline is a Minor Component of the Male Sex Pheromone in Nasonia vitripennis

Abstract

We identified 4-methylquinazoline (4-MeQ) as a minor component of the male sex pheromone of the parasitoid Nasonia vitripennis. Like the major components (4R,5R)- and (4R,5S)-5-hydroxy-4-decanolide (HDL), 4-MeQ is synthesized in the abdomen of males. At doses of 6 or 1 ng, 4-MeQ synergized the response of virgin females to the HDL-diastereomers in a still-air olfactometer, but was not attractive as a single component. 4-MeQ is also responsible for the characteristic medicinal odor of N. vitripennis males.

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Acknowledgements

This research was funded by the Deutsche Forschungsgemeinschaft (DFG, grant RU-717/8-1). J. R. was supported by a Heisenberg fellowship of the DFG (grant RU-717/7-1). The authors thank Waltraud Poppe (Technical University of Berlin) for technical assistance.

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Correspondence to Joachim Ruther.

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Ruther, J., Steiner, S. & Garbe, LA. 4-Methylquinazoline is a Minor Component of the Male Sex Pheromone in Nasonia vitripennis . J Chem Ecol 34, 99–102 (2008). https://doi.org/10.1007/s10886-007-9411-1

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  • DOI: https://doi.org/10.1007/s10886-007-9411-1

Keywords

  • Nasonia vitripennis
  • Parasitoid
  • Pteromalidae
  • Sex pheromone
  • 4-methylquinazoline