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개시호 (Bupleurum longeradiatum)의 핵형분석과 rDNAs의 Physical Mapping
구달회,성낙술,성정숙,방경환,방재욱 한국약용작물학회 2003 한국약용작물학회지 Vol.11 No.5
개시호 (Bulpleurum longeradiatum)를 대상으로 상염 색법과 FISH기법을 통한 염색체 분석을 통하여 다음과 같은 결과를 얻었다. 개시호의 체세포 염색체 수는 2n=12이었으며, centromeric index를 전중기 염색체를 이용한 핵형 분석에서 염색체 조성은 3쌍의 중부 염색체 (3번, 4번 및 6번)와 3쌍의 차중부 염색체 (1번, 2번 및 5번)로 구분되었다. 염색체의 길이는 2.55~5.05 μm로, 전체 길이는 18.15 μm로 나타났다. 5S 와 45S rDNA를 탐침으로 FISH를 수행한 결과 4번 염색체의 동원체 부위 에서 한 쌍의 5S rDNA signal이 확인되었고, 2번 염색체의 부수체에서 한 쌍의 45S rDNA signal이 관찰되었다. Karyotype analysis and chromosomal localization of 5S and 45S rDNAs using multi-color fluorescence in situ hybridization (McFISH) technique were carried out in Bupleurum longeradiatum. Somatic metaphase chromosome number was 2n=12. Karyotype was composed of three pairs of metacentrics (No.3, 4 and 6) and three pairs of submetacentrics (No. 1, 2 and 5). The length of somatic prometaphase chromosomes ranges from 2.55 to 5.05μm with total length of 18.15 μm. In FISH experiment, one pair of 5S rDNA signals was detected on the pericentromeric region of chromosome 4 and one pair of 45S rDNA signals was detected on the telomeric region of chromosome 2.
구달회,Yoonkang Hur,Dong-Chun Jin,방재욱 한국분자세포생물학회 2002 Molecules and cells Vol.13 No.3
An intensive karyotype analysis of a Korean cucumber cultivar (Cucumis sativus L. cv. Winter Long) was carried out with three different methods. These included Feulgen staining, Giemsa C-banding, and fluorescence in situ hybridization (FISH). The mitotic chromosomes of the cucumber (2n = 2x = 14) were characterized, based on the length and arm ratio values. A C-banding analysis showed dark stains on the centromeric, telomeric, and intercalary regions of the chromosomes, except that chromosome 2 had a heavy staining in the long arm. Bicolor FISH, using 45S and 5S rDNA probes, provided additional information to identify cucumber chromosomes. The signals for 45S rDNA were detected on the pericentromeric regions of chromosomes 1, 2, and 4. The signals for 5S rDNA were on the short arm of chromosome 5. Similar band patterns (as the C-banding) were observed when the chromosomes were counter-stained with 4′,6- diamidino-2-phenyoindole (DAPI). The data implied that the karyotype of the Korean cucumber cultivar is peculiar and different from previous reports.
Multicolor FISH와 Feulgen 염색법을 이용한 Angelica속 식물의 세포유전학적 분석
구달회,김수영,방경환,성낙술,방재욱,Koo, Dal-Hoe,Kim, Soo-Young,Bang, Kyong-Hwan,Seong, Nak-Sul,Bang, Jae-Wook 한국식물생명공학회 2003 식물생명공학회지 Vol.30 No.2
Karyotype analysis and chromosomal localization of 5S and 45S rDNAs using multi-color fluorescence in situ hybridization (McFISH) technique were carried out in two Angelica species. The numbers of diploid chromosomes were the same in two same in two species as 2n=22, however the lengths of chromosomes were varied from 4.25 to 6.50 ${\mu}{\textrm}{m}$ in A gigas and 4.95 to 8.50 ${\mu}{\textrm}{m}$ in A acutiloba. The chromosomes of A. gigas were composed of five metacentric and six submetacentric pairs, while those of A. acutiloba were six metacentic, one submetacentric and four subtelocentric paris. In FISH experiments, the numbers and size of 45S rDNA signals were varied between two species, however dach signal of the 5S rDNA was observed in two species.
김수영,구달회,방재욱 韓國藥用作物學會 2002 한국약용작물학회지 Vol.10 No.2
약용으로 재배되고 있는 지모의 세포유전학적인 연구인 핵형 분석 결과는 다음과 같다. 지모의 체세포 염색체 수는 2n=22였으며. 외형으로 비교해 보았을 때, 3쌍의 상대적으로 길이가 긴 염색체와 길이가 짧은 8쌍의 염색체로 구별이 되었다. 염색체의 평균 길이는 염색체의 길이는 1.27-3.80 μm로 관찰되었다. Armatio 비교를 통한 핵형 분석에서는 8쌍의 중부 염색체 (염색체 2, 3, 6, 7, 8, 9, 10 및 11), 2쌍의 차중부 염색체 (염색체 4와 5) 그리고 1쌍의 차단부 염색체 (염색체 1)로 구분되었다. Cytogenetic analysis of Anemarrhena ashodeloides BUNGE, which is one of medicinal plants belonging to Haemodoraceae was carried out using Feulgen staining. The somatic metaphase chromosome number was identified to 2n=22 (x=11) and the size of chromosomes ranges from 1.27-3.80 μm. Three pairs of chromosomes were relatively long in total length and the others were short. The karyotype was bimodal in chromosome length and arm ratios. The chromosome complement comprise eight pairs of metacentric (chromosome 2, 3, 6, 7, 8, 9, 10, and 11), two pairs of submetacentric (chromosome 4 and 5), and one pair of subtelocentric (chromosome 1).
최혜운,구달회,이우규,김수영,성정숙,성낙술,서영배,방재욱 韓國藥用作物學會 2005 한국약용작물학회지 Vol.13 No.3
한국에서 재배되고 있는 당귀속 (Angelica) 식물 7종을 대상으로 핵형 분석을 수행하여 다음과 같은 결과를 얻었다. 당귀속 식물들의 기본염색체 수는 x=11로, 체세포 염색체 수는 모든 종에서 2n = 2x = 22로 관찰되었다. 참당귀의 핵형은 K(2n) = 2x = 20m + 2sm, 일당귀의 핵형은 K(2n) = 2x = 12m + 10sm, 당당귀의 핵형은 K(2n) = 2x =16m + 6sm, 고본의 핵형은 K(2n) = 2x = 22m, 바디나물은 K(2n) = 2x = 18m + 4sm, 구릿대는 K(2n)= 2x = 10m + 10sm 2st, 왜친궁은 K(2n)= 2x = 22t로 각각 구분되었다. 염색체 크기는 3.56 μM-8.91 μM 사이였다. 고본의 체세포 염색체는 모두 중부 염색체로, 왜천궁은 모두 차단부 염색체로만 관찰되어 다른 종들과 이질적인 핵형을 보였다. 한국에 본포하고 있는 당귀속 식물의 핵형과 러시아, 일본, 중국에 분포하는 식물들의 핵형과 비교에서는 일부 다형현상이 관찰되었다. Karyotypes were established in seven Angelica species cultivated in Korea. The somatic chromosome numbers were 2n = 2x = 22 with the basic number of x = 11 in all Angelica plants examined. Their metaphase chromosomes ranged from 3.56 μm. to 8.91 x. in length. Distinctive Karyotypes were found in two species, A. tenuissima with all metacentries, K(2n) = 2x = 22m, and A. genuflexa with all subtelocentrics, K(2n) = 2x = 22st. Karyotype formulas of A. gigas, A. acutiloha, A. sinensis, A. decursiva and A. dahurica were K(2n) = 2x = 20m + 2sm, K(2n) = 2x = 12m + 10sm, K(2n) = 2x = 16m + 6sm, K(2n) = 2x = 18m + 4sm and K(2n) = 2x = 10m + 10sm + 2st, respectively. Cytological data showed that chromosomal polymorphisms within species were observed in Angelica plants compare to other regions.