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박한찬,Nozomi Kurihara,김경석,민미숙,한성용,이항,Junpei KIMURA 한국통합생물학회 2019 Animal cells and systems Vol.23 No.3
The Japanese otter (Lutra nippon), once inhabited in most islands of Japan, is now considered as an extinct species. Although the Japanese otter is regarded as a distinct species from the Eurasian otter (L. lutra), its phylogeny and taxonomic status are based on limited information on morphological and genetic data, and thus further clarification is required. Here, we assessed the phylogenetic relationship among the genus Lutra and taxonomic status of L. nippon by using the complete sequences of cytochrome b gene of its holotype. The present phylogenic trees supported that the genus Lutra specimens largely formed monophyletic group, with L. sumatrana as a basal to other Lutra species. Within Lutra species, L. nippon was distantly related with L. lutra. The European otter population of L. l. lutra were clustered together with its subspecies, L. l. chinensis rather than the same subspecies, Korean otter population. The discrepancy between the genetic data and traditional taxonomy justifies the necessity of reexamination of the current subspecific classification system of Eurasian otters. Level of genetic divergence between the holotype of L. nippon and L. lutra was two to three-fold lower than those among the other sister species of the Lutrinae. Based on the level of divergence between the L. nippon and L. lutra, and insufficient evidence of morphological difference between them, it is suggested that designation of Japanese otter as a separate species from L. lutra will be reconsidered.
박한찬,Tae-Yuen Han,Du-Chan Kim,Mi-Sook Min,Sung-Yong Han,김경석,이항 한국유전학회 2011 Genes & Genomics Vol.33 No.6
The Eurasian otter, Lutra lutra, is a well known endangered species in South Korea that experienced rapid population decreases through poaching and industrialization until the 1980’s. To evaluate the genetic diversity and the existing number of otters recently found in Daegu City, 81 fecal samples collected from the Gumho River and Shincheon stream were subjected to DNA extraction for sex determination and genetic analysis using nuclear genetic markers. Individual identification and relatedness between individuals were detemined by genotypic data using twelve microsatellite loci, and sex identification was also determined based on sequence variation of the zinc finger protein gene on sex chromosomes. Our results showed that at least seven otter individuals were identified and the kinship relationships of seven individual pairs were determined. It was concluded that otters distributed widely in Daegu City have moderate levels of genetic diversity,and close monitoring of the small-sized otter population is necessary to promote successful settlement of the otters in the area.
박한찬(Hanchan Park),조선란(Sun-Ran Cho),전종찬(Jong Chan Jeon),강원진(Won Jin Kang),김현경(Hyun Kyung Kim),구현나(Hyun-Na Koo),박부용(Bueyong Park),김길하(Gil-Hah Kim) 한국농약과학회 2021 농약과학회지 Vol.25 No.2
The beet armyworm, Spodoptera exigua (Hübner), is a important agricultural insect pest. IRM (Insecticide resistance management) programs and susceptibility by generations of S. exigua without exposure to any pesticides were examined in field-collected population (Haenam, Korea). In chlorantraniliprole treatment, the resistance ratio of F₁ generation showed more than 410,000 times, but the resistance ratio of F<SUB>6</SUB> generation was rapidly decreased by 271.1 times. Cyantraniliprole also decreased from 200,000 times (F₁ generation) to 105.7 times (F<SUB>6</SUB> generation). A point mutation I4790M in ryanodine receptor was observed in Haenam population. A susceptibility against F₄ generation using 11 registered pesticides was conducted in order to develop a IRM program. As a results, the five pesticides (broflanilide, chlorfenapyr, fluxametamide, indoxacarb and spinetoram) showed more than 90% mortality. Furthermore, all IRM programs showed more than 91% control effect, and there was no significant difference from program 5(excepting diamide-insecticides). These results can serve as a basis to control the diamide-resistant S. exigua in the field.
Diamide계 약제에 대한 파밤나방의 저항성 모니터링 및 방제체계
전종찬,박한찬,이종민,강열규,구현나,김길하 한국농약과학회 2021 한국농약과학회 학술발표대회 논문집 Vol.2021 No.11
국내 채집 파밤나방에 대해 diamide 약제감수성 평가와 점 돌연변이(G4946E, I4790M)을 분석하였다. 또한 가장 저항성이 높다고 판단된 2020년도 채집된 진도와 해남 집단을 대상으로 세대별 약제 감수성 평가와 점 돌연변이 변화를 확인하였다. 최종적으로 diamide 약제저항성 파밤나방을 방제하기 위한 IRM (Insecticide resistance management) program을 구성하여 방제가를 비교하였다. 그 결과, 국내에서 채집된 모든 집단은 chlorantraniliprole에 대해 200배 이상의 저항성비를 가졌으며, cyantraniliprole에 대해 2019년도 채집된 청주와 이천을 제외하고 200배 이상의 저항성비를 보였다. 모든 집단에서 점 돌연변이 G4946E는 확인할 수 없었으나, I4790M은 확인되었다. 가장 저항성이 높다고 판단된 2020년도 채집된 진도 및 해남 집단은 세대가 지남에 따라 두 약제에 대하여 지속적으로 감수성이 증가하였다. Diamide 약제저항성 개체들을 방제하기 위한 IRM 프로그램 평가를 진행한 결과, chlorfenapyr, fluxametamide, indoxacarb, spinetoram이 90% 이상의 살충률을 보였으며, 이를 바탕으로 4개의 프로그램을 구성하였고, 각 프로그램의 최종 방제가를 비교한 결과, 모두 91% 이상의 방제가를 나타냈다.
김백준,이윤선,안정화,박한찬,Hideo Okumura,이항,민미숙 한국분자세포생물학회 2008 Molecules and cells Vol.26 No.3
Korean long-tailed goral (Nemorhaedus caudatus) is one of the most endangered species in South Korea. However, detailed species distribution and sex ratio data on the elusive goral are still lacking due to difficulty of identification of the species and sex in the field. The primary aim of this study was to develop an economical PCR-RFLP method to identify species using invasive or non-invasive samples from five Korean ungulates: goral (N. caudatus), roe deer (Capreolus pygargus), feral goat (Capra hircus), water deer (Hydropotes inermis) and musk deer (Moschus moschiferus). The secondary aim was to find more efficient molecular sexing techniques that may be applied to invasive or non-invasive samples of ungulate species. We successfully utilized PCR-RFLP of partial mitochondrial cytochrome b gene (376 bp) for species identification, and sex-specific amplification of ZFX/Y and AMELX/Y genes for sexing. Three species (goral, goat and water deer) showed distinctive band patterns by using three restriction enzymes (XbaI, StuI or SspI). Three different sexing primer sets (LGL331/335 for ZFX/Y gene; SE47/48 or SE47/53 for AMELX/Y gene) produced sex-specific band patterns in goral, goat and roe deer. Our results suggest that the molecular analyses of non-invasive samples might provide us with potential tools for the further genetic and ecological study of Korean goral and related species.
김상인,민미숙,김경석,이항,안정화,최성경,이윤선,박한찬,Junpei KIMURA 한국통합생물학회 2012 Animal cells and systems Vol.16 No.3
The Korean hare, Lepus coreanus, is an important mammal in ecosystem food chains, and is distributed across the entire Korean peninsula and northeastern China. Polymorphic microsatellite loci were developed using the biotinenrichment technique for use in population genetics studies. Five trinucleotide and four dinucleotide microsatellite loci were selected and tested on 22 Korean hare specimens collected from Gangwon Province and Gyeongsangbuk Province in South Korea. The number of alleles across the two sampling regions ranged from three to nine with a mean of 6.1. Mean observed and expected heterozygosities and polymorphic information content were 0.540, 0.627and 0.579, respectively. Only one locus, Lc06, showed departure from Hardy-Weinberg equilibrium after applying the Bonferroni correction. Four microsatellites, Lc01, Lc03, Lc12, and Lc19, satisfied the criteria to serve as a core set of markers recommended for population genetics studies. These new microsatellite markers will be widely applicable to future genetic studies for management and conservation of the Korean hare and related species, including assessment of the genetic diversity and population structure of L. coreanus.
Yun-Sun Lee,최성경,안정화,박한찬,김상인,민미숙,김경석,이항 한국유전학회 2011 Genes & Genomics Vol.33 No.5
The main goals of this study were to isolate microsatellites markers of Korean water deer (Hydropotes inermis argyropus)and understand the genetic status of the species in South Korea. Twelve new microsatellite loci were isolated and characterized to establish basic population genetic parameters for 45 H. i. argyropus specimens in South Korea. There were no significant regional or genetic structure differences between the mid-eastern and southwestern populations in South Korea according to the population genetic analyses. The number of alleles per locus ranged from two to 13 with an average of 6.08. Mean expected (H_E) and observed heterozygosity (H_O) were 0.622and 0.533, respectively. Microsatellite variability was also not significant between the two regions (F_ST=0.012). These new markers should facilitate the future population genetics studies of Korean water deer and other closely related species.