International Journal of Industrial Entomology and Biomaterials

Korean Society of Sericultural Science (한국잠사학회)
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Additional mitochondrial DNA sequences from the dung beetle, Copris tripartitus (Coleoptera: Scarabaeidae), an endangered species in South Korea

  • Hwang, Eun Ju (College of Agriculture & Life Sciences, Chonnam National University) ;
  • Jeong, Su Yeon (College of Agriculture & Life Sciences, Chonnam National University) ;
  • Wang, Ah Rha (College of Agriculture & Life Sciences, Chonnam National University) ;
  • Kim, Min Jee (College of Agriculture & Life Sciences, Chonnam National University) ;
  • Kim, Iksoo (College of Agriculture & Life Sciences, Chonnam National University)
  • Received : 2018.03.16
  • Accepted : 2018.05.11
  • Published : 2018.06.30
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Abstract

The dung beetle, Copris tripartitus (Coleoptera: Scarabaeidae), is an endangered insect in South Korea. Previously, partial mitochondrial COI and CytB gene sequences have been used to infer genetic diversity and gene flow of this species in South Korea. In this study, we additionally collected C. tripartitus (n = 35) from one previous locality and two new localities, sequenced COI and CytB genes, and combined these with preexisting data for population genetic analysis. Sequence divergence of current samples showed slightly lower values [4.86% (32 bp) for COI and 4.16% (18 bp) for CytB] than that in the previous study. Nucleotide diversity (${\pi}$) ranged from 0.005336 (Gulupdo) to 0.020756 (Seogwi-dong) in COI and 0.009060 (Aewol-eup) to 0.017464 (Seogwi-dong) in CytB. Seogwi-dong samples that showed the highest ${\pi}$ in the previous study also showed the highest ${\pi}$ in this study for both gene sequences. The newly investigated Gulupdo samples had the lowest haplotype diversity for both gene sequences. They also had the lowest ${\pi}$ for COI and the second lowest ${\pi}$ for CytB. On the other hand, the newly added Haean-dong sample had relatively higher diversity estimates. Gene flow among populations was high, although significant difference was only detected between Gulupdo and Anmado or between Gulupdo and Seogwi-dong for COI sequences (P < 0.05). Considering the high genetic diversity and gene flow in C. tripartitus populations, one major issue regarding conservation seems not to be recovery of genetic diversity.

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References

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