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The effects of mating status and time since mating on female sex pheromone levels in the rice leaf bug, Trigonotylus caelestialium
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Animal ecology.
2014 (English)In: Die Naturwissenschaften, ISSN 0028-1042, E-ISSN 1432-1904, Vol. 101, no 2, 153-156 p.Article in journal (Refereed) Published
Abstract [en]

Although mating status affects future mating opportunities, the biochemical changes that occur in response to mating are not well understood. This study investigated the effects of mating status on the quantities of sex pheromone components found in whole-body extracts and volatile emissions of females of the rice leaf bug, Trigonotylus caelestialium. When sampled at one of four time points within a 4-day postmating period, females that had copulated with a male had greater whole-body quantities of sex pheromone components than those of virgin females sampled at the same times. The quantities of sex pheromone components emitted by virgin females over a 24-h period were initially high but then steadily decreased, whereas 24-h emissions were persistently low among mated females when measured at three time points within the 4 days after mating. As a result, soon after mating, the mated females emitted less sex pheromones than virgin females, but there were no significant differences between mated and virgin females at the end of the experiment. Thus, postmating reduction in the rate of emission of sex pheromones could explain previously observed changes in female attractiveness to male T. caelestialium.

Place, publisher, year, edition, pages
2014. Vol. 101, no 2, 153-156 p.
Keyword [en]
Sex pheromones, Postmating behavior, Sexual selection, Trigonotylus caelestialium
National Category
Natural Sciences
URN: urn:nbn:se:uu:diva-221970DOI: 10.1007/s00114-013-1141-3ISI: 000332000700010OAI: oai:DiVA.org:uu-221970DiVA: diva2:710941
Available from: 2014-04-08 Created: 2014-04-07 Last updated: 2014-04-08Bibliographically approved

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Yamane, Takashi
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