The rice recombinant inbred lines derived from Milyang23 and Gihobyeo cross were used in genetic mapping and QTL analysis studies. In this study, we developed a new 101 CAPS markers based on the SNPs in the whole genome region between these varieties. As a result, the total genetic distance and average distances were 1,696.97 cM and 3.64 cM, respectively. In comparison to the distance of the previous genetic map constructed based on 365 DNA markers, the new genetic map was found to have a decreased distance. The map was applied for the detection of QTLs on all seven traits relevant to diameter of stem internode, length of culms, length of panicles and the number of panicles including the correlation analysis between each trait. The QTLs results were similar to the report in previous studies, whereas the distance between the markers was narrowed and accuracy increased with the addition of 101 CAPS markers. A total of 9 new QTLs were detected for stem internode traits. Among them, qI1D-6 had higher LOD of 5.1 and phenotype variation of 50.92%. In this experiment, a molecular map was constructed with CAPS markers using next generation sequencing showing high accuracy for markers and QTLs. In the future, developing more accurate QTL information on stem internode diameters with various agriculturally important traits will be possible for further rice breeding.

포제 방법에 따른 감초경엽의 성분변화 및 항산화, 항돌연변이원성을 평가하였다. 성분변화를 관찰하기 위해 GC-Mass의 분석한 결과 각 추출물에서 공통으로 분석된 성분은 19.7분에서 cis-1,3-dimethyl-2-methylene-cyclohexane과 21.5에서 n-hexadecanoic acid이 모두 분석되었으며, 17.8분에서는 3-O-methyl-D-Fructose가 끓는 물에 데친 감초경엽에서 19.8분에서는 aminopyrazine이 4회 볶은 감초 잎과 줄기 추출물만 분석되지 않고 4가지 모두에서 분석되었다. 항산화 활성 측정에서는 DPPH 라디칼 소거활성에서 3회 볶은 감초경엽에서 EC50이 2.66±0.09μg으로 가장 높은 활성을 나타났으며, ABTS 라디칼 소거활성은 4회 볶은 감초경엽에서 EC50이 0.57±0.22μg으로 가장 높았다. 환원력 측정에서는 3회 볶은 감초 잎과 줄기 추출물에서 가장 높게 나타났으며, 폴리페놀 함량 3회 볶은 감초경엽에서 3.38±0.12g/100g으로 가장 높았다. 항돌연변이원성 평가에 있어서 직접변이원인 1-NP에 대해 높은 돌연변이 억제효과를 나타내었으며, 간접변이원인인 Trp-P-1, Trp-P-2, AFB1, 2-AA에 대해서는 3번 볶은 감초경엽(GU-1)에서 가장 높은 돌연변이 억제효과를 나타냈다.