DNA Comparison of Japanese Populations of Hyphantria cunea with Divergent Life Cycles
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概要
- 論文の詳細を見る
The fall webworm, Hyphantria cunea Drury, maintained a bivoltine life cycle throughout its distribution range (39-34°N) for the first 20-30 years after its introduction in 1945 from U.S.A. At present, however, trivoltine populations occur in southwestern districts of the main islands, and multivoltine (more than three generations a year) populations in the Ogasawara Islands (ca. 27°N). The percentage diapause in three local strains with different life cycles under a 14-h daylength at 25℃ was highest in the bivoltine strain, intermediate in the trivoltine strain and lowest in the multivoltine strain. In spite of their divergent life cycles, all the Japanese populations are homologous in the DNA sequence of the cytochrome c oxidase subunit I gene. On the other hand, a native multivoltine strain from Florida indicated a substitution rate of 4.14% compared with Japanese populations. Therefore, the variation in voltinism has been established by natural selection after introduction and is not due to multiple introductions from different parts of U.S.A.
- 日本昆虫学会の論文
- 2001-03-25
著者
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Ohbayashi Takashi
Ogasawara Subtropical Branch Of Tokyo Metropolitan Agricultural Experiment Station Chichijima-is.
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OZAKI Katsuhisa
Laboratory of Entomology, Faculty of Agriculture and Life Science, Hirosaki University
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Ozaki Katsuhisa
Laboratory Of Entomology Faculty Of Agriculture And Life Science Hirosaki University
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Ohbayashi Takashi
Ogasawara Subtropical Branch of Tokyo Metropolitan Agricultural Experiment Station
関連論文
- DNA Comparison of Japanese Populations of Hyphantria cunea with Divergent Life Cycles
- Thysanurans from the Ogasawara Islands (Zygentoma, Lepismatidae), Ctenolepisma longicaudata and Acrotelsa collaris, New to the Japanese Fauna
- An epizootic on Meimuna boninensis (Distant) (Homoptera : Cicadidae), caused by Massospora sp. (Zygomycetes : Entomophthorales) and Nomuraea cylindrospora (Deuteromycotina : Hyphomycetes) in the Ogasawara (Bonin) Islands, Japan