Abstract
Geographic variation in the sex pheromone of the Asian corn borer, Ostrinia furnacalis (Guenée), was surveyed in populations sampled at four locations ranging from 39.7°N to 32.9°N in Japan. The sex pheromone of the three northern populations was composed of (E)- and (Z)-12-tetradecenyl acetates with a mean E proportion of 36–39%. The southernmost population (Nishigoshi) had the same components but with a significantly higher E composition of 44%. The frequency distribution of the E ratio in the Nishigoshi population exhibited a small peak near 38% and a major peak near 46%. A family-wise analysis of the sex pheromone of this population confirmed that there were two distinct phenotypes regarding the E ratio. An “≍46% E strain” inhabits southern parts of Japan, in addition to an “≍38% E strain,” which seems to be predominant in other regions of Japan.
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Huang, Y., Takanashi, T., Hoshizaki, S. et al. Geographic Variation in Sex Pheromone of Asian Corn Borer, Ostrinia furnacalis, in Japan. J Chem Ecol 24, 2079–2088 (1998). https://doi.org/10.1023/A:1020737726636
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DOI: https://doi.org/10.1023/A:1020737726636