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Decrease in Genetic Variation of Overwintering Populations of the Diamondback Moth during Seasonal Occurrence
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 Title & Authors
Decrease in Genetic Variation of Overwintering Populations of the Diamondback Moth during Seasonal Occurrence
Kim, Eunseong; Park, Areum; Park, Youngjin; Kim, Jooil; Kim, Yonggyun;
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 Abstract
The diamondback moth, Plutella xylostella, overwinters in some protected areas in Korea. Using a sex pheromone trap, the adults were monitored since the occurrence of the overwintering populations. In Andong, P. xylostella exhibited four adult peaks in a year. Biological characters, such as cold tolerance, insecticide susceptibility, and developmental rate, were analyzed and showed a significant variation among different local overwintering populations. Population genetic variation was assessed with molecular markers, in which the initial high genetic variation among the overwintering populations decreased with the progress of seasons. These results suggests that there may be a significant migration of P. xylostella to decrease the genetic variation among the different local populations that are different in biological characters.
 Keywords
Plutella xylostella;Insecticide resistance;Cold tolerance;Developmental rate;Population variation;Molecular marker;
 Language
Korean
 Cited by
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