• Korean Journal of Medicinal Crop Science
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• v.8 no.3
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• pp.266-273
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• 2000

The optimal conditions of PCR components for the random amplification of genomic DNA were $20\;ng/20{\mu}l$ in template DNAs, 250 mM in dNTP, 10 pM in primer $1.0unit/20{\mu}l$ in Taq DNA polymerase respectively with the annealing temperature at $36^{\circ}C$, respectively. Twelve local lines were divided into 3 groups by the coefficients of 107 polymophic bands by Jaccard and Nei. The coefficients value of group I including Chongup # 1, Seochon # 1, Andong # 1, Chinan # 1, and Danyang # 1 ranged from 0.27 to 0.05 and those of group II including Suwon # 2, Chunchon # 1, Japan # 3, Danyang#2 and $F_1$ (Variety Jihwang $1{\times}$ Seohchon) ranged from 0.29 to 0.11. While, Jihwang 1 originated from China and Japan # 1 in group III showed a distant genetic relationship to Korean local lines.

• The Korean Journal of Zoology
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• v.37 no.4
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• pp.580-591
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• 1994

한국산 Drosophila melanogaster species group 8종의 생화학적 유연관계를 조사하기 위하여 3령기 유충, 말기 번데기, 성체의 세 발생단계에서 각각 효소 분석을 실시하였다. Rogers의 공식에 의해 각 발생단계 별로 8종간의 유전적 유사도를 계산하고 그 값을 근거로 UPGMA법에 의한 dendrogram을 작성하였다. 발생단계에 따라 관찰된 효소allele의 빈도는 큰 차이를 나타냈는데 이는 효소의 활성도나 유전자 발현의 발생단계별 차이로 생각되었다 이러한 발생단계별 효소분석 결과의 차이에도 불구하고 세 발생단계에서 모두 같은 pattern의 dendrogram이 얻어졌다. 따라서 대소 분석은 성체뿐만 아니라 유충이나 번데기와 같은 초기발생단계를 재료로 취할 때에도 종간 유연관계의 분석에 유용한 분석법이 될 것으로 생각할 수 있었다 세 발생단계에서 효소분석을 통해 얻어진 결과로 볼 때 D. melanogaster species group 8종은 크게 두개의 계통으로 나뉘었는데 D. melonogaster와 여. simulons, D. lutescens가 한 계통에 속했고 D. suzukii와 D. aurauia, D. biourariu, D. trioururia, D. rufa가 다른 한 계통에 속하고 있는 것으로 나타났다.

• Korean Journal of Breeding Science
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• v.43 no.5
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• pp.405-412
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• 2011

Knowledge of genetic diversity and genetic relationships among inbred lines gives a significant impact on the selection of parental lines for hybrid maize varieties. Genetic diversity and genetic relationships among 86 popcorn inbred lines were analyzed using 50 SSR markers distributed over the whole genome. A total of 256 alleles were identified at all the SSR loci with an average of 5.1 and a range between two and sixteen per locus. The gene diversity values varied from 0.21 to 0.831 with an average of 0.579. The cluster tree generated using the described SSR markers recognized three major groups at 35.8% genetic similarity. Groups I, II, III respectively included 40, 39 and 7 inbred lines. The present study indicates that the SSR markers chosen for this analysis are effective for the assessment of genetic diversity and genetic relationships among 86 popcorn inbred lines in Korea.

• Proceedings of the Malacological Society of Korea Conference
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• 2002.11a
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• pp.10-11
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• 2002

• Proceedings of the Zoological Society Korea Conference
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• 1999.04a
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• pp.56.2-56
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• 1999

• Korean Journal of Plant Taxonomy
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• v.42 no.4
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• pp.282-293
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• 2012

Phylogenetic studies were conducted to evaluate the taxonomic relationships among 28 taxa, including 2 outgroups of Korean Campanulaceae, using atpB, atpB-rbcL, atpF-H, matK, rbcL, rpl16, rpoC1 and trnL-F regions sequences in chloroplast DNA. The combined analyses of eight chloroplast DNA regions suggest that Codonopsis and Platycodon basally branches within the phylogenetic tree; Wahlenbergia distinguished an independent clade; Campanula forms a clade; Peracarpa and Asyneuma clade is a sister to the Adenophora-Hanabusaya clade; Hanabusaya is placed within the section Remotiflorae of Adenophora; Adenophora form a clade. Our present results support the generic level, although discordance remained at the infrageneric groups such as section and series based on morphological characteristics in the genus Adenophora.

• Animal Systematics, Evolution and Diversity
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• v.18 no.1
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• pp.165-179
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• 2002

In spite of dramatic change of environmental condition since Cambrian big-bang (explosion occurred ca.540 mya, the phylum Arthropoda retains a great diversity, and it is estimated approximately that 1-10 million arthropod species are extant on the earth. Except for an extinct arthopod subphylum Trilobita, extant arthropods could be divided into five subphyla: Hexapoda, Crustacea, Myriapoda, Chelicerata, and Pycnosonida. During the last century, systematists have disputed about interrealtionships among Arthropoda and its relatives (Onychophora, Tardigrada, and Pentastomida), arthropod phylogenetic position within protostome animals, monophyly or polyphyly of the phylum Arthropods, and interrelationships among five arthropod subgroups (subphyla) etc. Recently, new animal phylogeny was reported that protostomes could be clustered into two groups, Lophotrochozoa and Ecdysozoa, and molting animals such as Nematoda and Arthropoda were included within the Ecdysozoa. On the basis of the new animal phylogeny, first of all, I would mention phylogenetic positions and relationships of Arthropods and its relatives to introduce controversies of arthropod phylogeny in phylum level of animals. After that, I focused mainly on the controveries related to arthropod monophyly and phylogenetic relationships among four major arthropod groups except Pycnogonida. In this work, Pycnogonida which is a relatively small group and one of the five arthropod subphyla was not handled significantly although there are some controversies if it is a sister taxon of chelicerates or the most primitive arthropod group (namely, a sister of four remains arthropod groups).

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2003.05a
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• pp.43-43
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• 2003

우례기속(Epinephelus)에 속하는 어종 간의 계통분류학적 관계를 추정하기 위하여, 능성어아과(Epinephelinae)에 속하는 10종의 어류로부터 cytochrome b 유전자를 PCR증폭하고 클로닝한 후 그 염기서열을 밝혔다. PCR 증폭을 위한 프라이머들은 지금까지 밝혀진 여러 어종의 cytochrome b 유전자 주변부의 tRNA 유전자의 보존된 영역에 근거하여 디자인하였다. (중략)

• Proceedings of the Plant Resources Society of Korea Conference
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• 2002.04a
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• pp.33-33
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• 2002

• Korean Journal of Medicinal Crop Science
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• v.5 no.3
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• pp.177-185
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• 1997

Twenty-four major ecological and physiolosical characters of the 54 accessions of taro(Colocasia antiquorum) were observed in the growing seasons of 1995 and 1996 in $Ch{\breve{o}}nju$, Korea. The average days to emergence of the 54 accessions were 21.7 and the accession which had the shortest days to emergence was Kurye #2. Petiole color of most accessions was green, except $Ich{\breve{o}}n$ #1, Iri #1, Puan #1 and Taiwan #1 which had purple petioles. All the accessions had cormels except Taiwan #1 which had long runners without cormels. Average yield of the accessions was 3,719 kg/10a and total carmel weight, average carmel number, average carmel and average corm weight were 787g/plant, 39.2/plant, 20.3g/cormel, and 263.6g/plant, respectively. Accessions $Ch{\breve{o}}ngju$ #1 and Wanju #1 showed superiority in the three important characters, total carmel weight/plant, average carmel weight, and corm weight. Multivariate analysis for the 24 characters indicated that petiole color and carmel type had relatively higher coefficient of variation, 56.8 and 44.4 %, respectively. Fifty four taro accessions could be classified into 11 groups with D(${\sqrt{D^{2}}$) value of 110 on the basis of phenotypical characteristics. Most accessions were inclued in Group II. The Group I in which Taiwan #1 was included was genetically the most distant from the other groups. Accessions with purple petioles were grouped into the three different subgroups in which green petiole accessions were not included, indicating high dissimilarity between the different petiole color accessions. All the accessions grouped into the Group VIII, $Ch{\breve{o}}ngju$ #1, Wanju #1, Wanju #3, and $Taech{\breve{o}}n$ #2, had higher bioogical yield. Some accessions collected from the same district showed a high dissimilarity by being classified into the different subgroups.