Mechanisms of reproductive isolation between the fruit-feeding and the pinaceae-feeding types of the yellow peach moth, Dichocrocis punctiferalis Guenee (Lepidoptera: Pyralidae)
Mechanisms of reproductive isolation between the fruit-feeding and the pinaceae-feeding types of the yellow peach moth, Dichocrocis punctiferalis Guenee (Lepidoptera: Pyralidae)
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黄桃蛾 Dichocrocis punctiferalis Guenee（鳞翅目：螟科）食果型和松科食型之间的生殖隔离机制
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发表时间：
1981
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通讯作者：
Y. Matsumoto
中科院分区：
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作者：
Y. Konno;H. Honda;Y. Matsumoto
黄桃蛾果实摄食型与松果摄食型生殖隔离机制研究（鳞翅目：蛾科）。Yasuhiko KONNO, Hiroshi HONDA, Yoshiharu MATSUMOTO（东京大学农学院应用昆虫学实验室，日本东京113）。日本。j:。Ent。黄桃蛾（Dichocrocis punctiferalis GUENEE）是一种多食性食果蛾，可侵食被子植物科15科30种果实；另一种为寡食性食果蛾，仅侵食松科的松木和雪松的幼叶。本研究在实验室研究了这两种类型的生殖隔离机制。尽管这些类型的交配行为和鸣叫姿势几乎相似，但松科取食者的鸣叫频率显著低于果食者。在人工饲养条件下（15L9D），两种类型的交配时间略有差异，即松科取食者的交配时间高峰比果实取食者早1.5 h。此外，在另一种类型的两性存在时，这些活动明显延迟。在实验室的吸引力测试中，两种类型的雌性不仅吸引同一类型的雄性，而且吸引不同类型的雄性。这一结果表明，雌性的性信息素有一个共同的成分，能够吸引两种类型的雄性。然而，在交配选择测试中，两种类型的雄性和雌性都被关在一起，所有的交配都发生在同一类型中。因此，两种类型的性隔离机制必然是不同的。
Mechanisms of Reproductive Isolation between the Fruit-Feeding and the PinaceaeFeeding Types of the Yellow Peach Moth, Dichocrocis punctiferalis GUENEE (Lepidoptera: Pyralidae). Yasuhiko KONNO, Hiroshi HONDA and Yoshiharu MATSUMOTO (Laboratory of Applied Entomology, Faculty of Agriculture, University of Tokyo, Bunkyo-ku, Tokyo 113, Japan). Jap. J. appl. Ent. Zool. 25: 253-258 (1981) Two types of the yellow peach moth, Dichocrocis punctiferalis GUENEE, namely the polyphagous fruit-feeder attacking the fruits of 30 species in 15 families of Angiospermae, and the other as the oligophagous Pinaceae-feeder attacking only young leaves of Pinus and Cedrus of Pinaceae have been known to occur in Japan. In the present study, the mechanism of reproductive isolation between these two types was investigated in the laboratory. Although the mating behavior and calling posture of these types were almost similar, the calling frequency of the Pinaceaefeeder was remarkably lower than that of the fruit-feeder. The mating time was slightly different between the two types, when these were caged separately under artificial conditions (15L9D), i.e., the peak of mating-time of Pinaceae-feeder was found to occur 1.5 hr earlier than that of the fruit-feeder. Besides, these activities were significantly delayed in the presence of both sexes of the other type. The females of both types attracted not only the males of the same type, but also the males of different type in the laboratory attraction tests. This result suggests that the female sex-pheromones have a common component(s) enabling to attract the males of both types. However, in the mating-choice tests, in which males and females of both types were caged together, all matings occurred within the same type. Therefore, the mechanism underlaying sexual isolation must be different in the two types.