Identification of a Sex Pheromone From Male Yellow MealWorm Beetles, <Emphasis Type="Italic">Tenebrio molitor</Emphasis> |
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Authors: | Email author" target="_blank">Gareth?P?BryningEmail author John?Chambers Maureen?E?Wakefield |
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Affiliation: | (1) Central Science Laboratory, Sand Hutton, York, YO41 1LZ, UK |
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Abstract: | The sex pheromone released by the adult female Tenebrio molitor, 4-methyl-1-nonanol, is well known. In addition, there is evidence that adult males release a pheromone that attracts females.
The purpose of the present study was to isolate and identify male-released pheromone(s). Emissions from virgin adult males
and females were collected on filter paper and extracted with pentane. Extracts were analyzed by gas chromatography-mass spectrometry.
One male-specific compound was detected and identified as (Z)-3-dodecenyl acetate (Z3-12:Ac). In arena bioassays, E3-12:Ac was attractive to females only, at 1 and 10 μg doses. E3-12:Ac
was also attractive to females at a 10-μg dose. The presence of both male and female pheromones, each attracting the opposite
sex, may contribute to maintaining a high-density population of both sexes. |
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Keywords: | 4-methyl-1-nonanol bioassay Coleoptera (E)-3-dodecenyl acetate electroantennography male sex pheromone Tenebrio molitor (Z)-3-dodecenyl acetate |
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