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RISS 인기검색어
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- 저자 : ( Hae Chul Park1 ) (검색결과 2 건)
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( Joong Won Park ),( Sun Young Park ),( Ah Rha Wang ),( Min Jee Kim ),( Hae Chul Park1 ),( Iksoo Kim ) 한국잠사학회 2011 International Journal of Industrial Entomology Vol.23 No.1
The leaf beetle, Chrysolina aurichalcea (Coleoptera: Chysomelidae), is a pest damaging plants of Compositae. In order to understand the genetic diversity and geographic variation we sequenced a portion of mitochondrial COI gene (658 bp) and complete nuclear internal transcribed spacer 2 (ITS2) of the species collected from seven Korean localities. A total of 17 haplotypes (CACOI01~CACOI17), with the maximum sequence divergence of 3.04% (20 bp) were obtained from COI gene sequence, whereas 16 sequence types (ITS2CA01~ITS2CA16), with the maximum sequence divergence of 2.013% (9 bp) were obtained from ITS2, indicating substantially larger sequence divergence in COI gene sequence. Phylogenetically, the COI gene provided two haplotype groups with a high nodal support (≥87%), whereas ITS2 provided only one sequence type group with a high nodal support (≥92%). The result of COI gene sequence may suggest the presence of historical biogeographic barriers that bolstered genetic subdivision in the species. Different grouping pattern between COI gene and ITS2 sequences were interpreted in terms of recent dispersal, reflected in the ITS2 sequence. Finding of unique haplotypes and sequence types only from Beakryeng-Islet population was interpreted as an intact remnant of ancient polymorphism. As more samples are analyzed using further hyper-variable marker, further fruitful inference on the geographic contour of the species might be available.
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( Seong Hyun Kim ),( Seong Jin Hong ),( Young Bo Lee ),( Hae Chul Park ),( Yeon Ho Je1 ),( Nam Jung Kim ) 한국잠사학회 2011 International Journal of Industrial Entomology Vol.23 No.2
To establish an indoor-rearing system for the Large Copper butterfly, Lycaena dispar and the Small Copper butterfly, Lycaena phlaeas, the effect of temperature, photoperiod and host plants on larval development was investigated. The larvae of Lycaena dispar fed on Rumex crispus, whereas the larvae of Lycaena phlaeas ate both Rumex crispus and Rumex acetosa. The duration of the larval period of Lycaena dispar was 13.8 days on R. crispus and that, of Lycaena phlaeas was 15.9 days and 15.2 days on R. acetosa and R. crispus respectively. Laboratory experiments show that the Large Copper larvae are able to feed on other Rumex species without harming their overall survival and can utilize these alternative host plants at least as efficiently as their natural host plant. This result suggests that plant chemistry is not responsible for their lack of utilization of the alternative host plants in the wild. Host plant choice by ovipositing females was measured with the two alternative hosts. Lycaena dispar preferred R. crispus to R. acetosa, wheareas Lycaena phlaeas preferred R. acetosa to R. crispus. Temperature has been proposed as an important determinant of developmental rate, lifespan and mortality in invertebrates. As temperature increased, length of the developmental period gradually decreased. The developmental period of the Large Copper larvae was 11.0 days and 28.5 days at 30oC and 17.5oC, respectively.
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