Mitochondrial DNA Polymorphism and Population Genetic Structure of Diamondback Moths, Plutella xylostella (Lepidoptera: Yponomeutidae), in Korea

Kim, Ik-Soo; Bae, Jin-Sik; Choi, Kwang-Ho; Kim, Seoung-Ryul; Jin, Byung-Rae; Lee, Kyung-Ro; Sohn, Hung-Dae

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자료유형: 학술저널

저자정보: Kim, Ik-Soo (College of Natural Resources and Life Science, Dong-A University) Bae, Jin-Sik (College of Natural Resources and Life Science, Dong-A University) Choi, Kwang-Ho (College of Natural Resources and Life Science, Dong-A University) Kim, Seoung-Ryul (College of Natural Resources and Life Science, Dong-A University) Jin, Byung-Rae (College of Natural Resources and Life Science, Dong-A University) Lee, Kyung-Ro (Dept. of Biology, Kon-Kuk University) Sohn, Hung-Dae (College of Natural Resources and Life Science, Dong-A University)

저널정보: 한국곤충학회 한국곤충학회지 한국곤충학회지 제30권 제1호

발행연도: 2000.1

수록면: 21 - 32 (12page)

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2002

Mitochondrial DNA Sequence Variation of the Diamondback Moth, Plutella xylostella, in Korea

Kim , Ik-Soo , Bae 외 11명 한국응용곤충학회 학술발표회 2002.01 학술대회자료

2000

Mitochondrial DNA Polymorphism and Population Genetic Structure of Diamondback Moths, Plutella xylostella (Lepidoptera: Yponomeutidae), in Korea

Kim , Ik-Soo , Bae 외 11명 한국곤충학회지 2000.01 학술저널

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We used a portion of mitochondrial COI gene sequences (438 bp) to investigate the phylogenetic and population genetic characteristics of the diamondback moth, Plutella xylostella, in Korea. A total of 27 mtDNA haplotypes were obtained from the samples collected from eight localities mostly in southern part of Korea. One haplotype, DB24, obtained from Muju in Chunrabuk Province formed an independent phylogenetic group in the PAUP and PHYLIP analyses, separated by 1.8~2.7% of sequence divergence from others. This distinct haplotype appears to be one that carried by immigrants from outside study areas, but further study is required. Even excluding DB24, sequence divergence was moderate to substantial (0.2~1.4%) and haplotype diversity within populations was substantially higher (mean H = 0.95), compared with other relevant studies. Although most haplotypes were confined within one locality, female gene flow was substantial or high (Nm = 10.6-infinite). The same pattern was observed in the hierarchical genetic analysis, showing that local populations were composed of heterogeneous haplotypes, and the genetic distance between localities were not statistically significant. These findings allowed us to conclude that the local diamondback moth populations was formed with randomly dispersed individuals, survived from the diversified use of insecticides over geographic areas.

#diamondback moths #mtDNA polymorphism #population genetic structure #COI gene #haplotype diversity #gene flow

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