Hung-Dae Sohn
College of Natural Resources
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Featured researches published by Hung-Dae Sohn.
Biochemical Genetics | 2003
Sang-Chul Lee; Jin-Sik Bae; Iksoo Kim; Hirobumi Suzuki; Seong-Ryul Kim; Jong-Gill Kim; Keun-Young Kim; Won-Jin Yang; Sang-Mong Lee; Hung-Dae Sohn; Byung-Rae Jin
The genetic divergence, population genetic structure, and possible speciation of the Korean firefly, Pyrocoelia rufa, were investigated on the midsouthern Korean mainland, coastal islets, a remote offshore island, Jedu-do, and Tsushima Island in Japan. Analysis of DNA sequences from the mitochondrial COI protein-coding gene revealed 20 mtDNA-sequence-based haplotypes with a maximum divergence of 5.5%. Phylogenetic analyses using PAUP, PHYLIP, and networks subdivided the P. rufa into two clades (termed clade A and B) and the minimum nucleotide divergence between them was 3.7%. Clade A occurred throughout the Korean mainland and the coastal islets and Tsushima Island in Japan, whereas clade B was exclusively found on Jeju-do Island. In the analysis of the population genetic structure, clade B formed an independent phylogeographic group, but clade A was further subdivided into three groups: two covering western and eastern parts of the Korean peninsula, respectively, and the other occupying one eastern coastal islet and Japanese Tsushima Island. Considering both phylogeny and population structure of P. rufa, the Jeju-do Island population is obviously differentiated from other P. rufa populations, but the Tsushima Island population was a subset of the Korean coastal islet, Geoje. We interpreted the isolation of the Jeju-do population and the grouping of Tsushima Island with Korean coastal islets in terms of Late Pleistocene–Holocene events. The eastern–western subdivision on the Korean mainland was interpreted partially by the presence of a large major mountain range, which bisects the midpart of the Korean peninsula into western and eastern parts.
Biochemical Genetics | 2004
Hirobumi Suzuki; Yasushi Sato; Nobuyoshi Ohba; Jin-Sik Bae; Byung-Rae Jin; Hung-Dae Sohn; Sam-Eun Kim
Luciola lateralis is widely distributed throughout the Korean Peninsula, northeast China, Sakhalin, and Japan. Two ecological types are recognized in Japan based on flash and hatching time characteristics. The mitochondrial cytochrome oxidase II gene was surveyed by restriction fragment length polymorphism analysis for Japan (46 populations) and Korea (two populations). Eleven haplotypes were detected. Gene trees revealed that haplotypes between Japan and Korea are much more differentiated in nucleotide sequences (8.1%) than those within Japan (0.3–1.4%) and Korea (0.7%). Haplotypes between Honshu and Hokkaido are not separated as clades, and the two ecological types cannot be segregated from each other phylogenetically. We suggest that the Japanese populations of this species may have dispersed within one million years ago and that ecological differences may be the result of physiological adaptation to cold climates.
International journal of industrial entomology | 2000
Iksoo Kim; Jin-Sik Bae; Hung-Dae Sohn; Phil-Don Kang; Kang-Sun Ryu; Bong-Hee Sohn; Won-Bok Jeong; Byung-Rae Jin
International journal of industrial entomology | 2003
Seong-Ryul Kim; Kwang-Sik Lee; Iksoo Kim; Seok-Woo Kang; Si-Kab Nho; Hung-Dae Sohn; Byung-Rae Jin
International journal of industrial entomology | 2001
Seong-Ryul Kim; Hyung-Joo Yoon; Nam-Sook Park; Sang-Mong Lee; Jae-Yu Moon; Byung-Rae Jin; Hung-Dae Sohn
한국응용곤충학회지 | 1999
Soung-Ryul Kim; Kang-Ho Choi; Eun-Sook Cho; Won-Jin Yang; Byung-Rae Jin; Hung-Dae Sohn
International journal of industrial entomology | 2003
Seong-Ryul Kim; Kwang-Sik Lee; Iksoo Kim; Seok-Woo Kang; Si-Kab Nho; Hung-Dae Sohn; Byung-Rae Jin
Journal of Sericultural and Entomological Science | 1999
Pil-Don Kang; Hyung-Joo Yoon; Kang-Sun Ryu; Bong-Hee Sohn; Hung-Dae Sohn
International journal of industrial entomology | 2003
Jianhong Li; Yong-Soo Park; Sang-Chul Lee; Sang-Mong Lee; Jong-Gill Kim; Iksoo Kim; Keun-Young Kim; Hung-Dae Sohn; Byung-Rae Jin
International journal of industrial entomology | 2003
Jianhong Li; Yong-Soo Park; Zhao Feng; Iksoo Kim; Sang-Mong Lee; Jong-Gill Kim; Keun-Young Kim; Hung-Dae Sohn; Byung-Rae Jin