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Behavioral Response of Males to Major Sex Pheromone Component, (Z,Z)-5,25-Hentriacontadiene, of Drosophila ananassae Females |
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| Authors: | Motomichi Doi Tadashi Nemoto Hiroshi Nakanishi Yasumasa Kuwahara Yuzuru Oguma |
| Affiliation: | 1. Institute of Biological Sciences, University of Tsukuba, Tsukuba, 305, Japan 2. Biomolecules Department, National Institute of Bioscience and Human-Technology, Tsukuba, 305, Japan 3. Pesticide Research Institute, Faculty of Agriculture, Kyoto University, Kyoto, 606-01, Japan |
| Abstract: | To identify sex pheromone components in Drosophila ananassae, the cuticular hydrocarbons were analyzed and bioassayed. After silicic acid and two silver nitrate–silicic acid chromatographic steps, active fractions containing (Z,Z)-5,25- and (Z,Z)-4,26-hentriacontadiene as the most abundant components were obtained. Both hydrocarbons could elicit male courtship behavior. The former was the more predominant compound and elicited a higher courtship index value than the latter. Cuticular hydrocarbon differences between D. ananassae and its close relative, D. pallidosa, and their roles in species recognition are discussed. |
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