Journal of Chemical Ecology p. 2079 - 2088 (1998)
Update date:2022-08-11
Topics:
Huang, Yongping
Takanashi, Takuma
Hoshizaki, Sugihiko
Tatsuki, Sadahiro
Honda, Hiroshi
Yoshiyasu, Yutaka
Ishikawa, Yukio
Geographic variation in the sex pheromone of the Asian corn borer, Ostrinia furnacalis (Guenee), 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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