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아시아 및 아프리카 원산 참깨(Sesame indicum L.) 유전자원의 농업형질과 리그난 함량 평가
이수경,성정숙,이기안,유은애,황소정,리웨이란,양태진,Sookyeong Lee,Jungsook Sung,Gi-An Lee,Eunae Yoo,So Jeong Hwang,Weilan Li,Tae-Jin Yang 한국자원식물학회 2023 한국자원식물학회지 Vol.36 No.4
Sesame (Sesamum indicum L.) is an ancient oilseed crop, which is usually cultivated for its seeds. Sesame breeding aims to achieve high seed yield and quality, along with resistance to biotic or abiotic stresses. It is estimated that sesame is originated from Asia or Africa continent. In this study, we characterized 10 agronomic traits and evaluated lignan contents in 165 sesame germplasm originated from Asia or Africa, to select high-yield or high-lignan content accessions. Sesame germplasm showed diverse phenotypes and highly variable lignan contents (sesamin: 0.5-12.6 mg/g, sesamolin: 0.1-3.5 mg/g, lignan: 1.1-16.1 mg/g). Based on originated continent, there are significant difference in agronomic traits, but no in lignan content. Correlation analysis revealed that yield-related agronomic traits were negatively related with lignan contents. Also, PCA analysis showed that most agronomic traits and lignan contents were principal components explaining diversity of whole sesame germplasm. Sesame germplasm was clustered into three groups based on agronomic traits and lignan contents. Finally, we selected high-yield (IT29416, IT167042, K276848, K276849) and high-lignan candidate accessions (IT169254, IT170031, IT169250, IT154876, IT170034), respectively. These accessions are expected to be valuable resources for breeding of high-yield and high-lignan contents functional cultivars.
한국, 불가리아, 엘살바도르 강낭콩(Phaseolus vulgaris L.) 유전자원의 농업 및 종자 형질 비교
이수경(Sookyeong Lee),현도윤(Do Yoon Hyun),이경준(Kyung Jun Lee),이승범(Seungbum Lee),유은애(Eunae Yoo),조규택(Gyu-Taek Cho),고희종(Hee-Jong Koh) 한국육종학회 2022 한국육종학회지 Vol.54 No.2
To compare agronomic and seed traits of 135 common bean landraces originating from Korea, Bulgaria, and El Salvador, we evaluated 20 morphological traits and performed principal component analysis (PCA). In the PCA, the first and second principal components accounted for 55.15% and 15.97% of the total variance, respectively. The first component showed a strong positive correlation with seed size and 100-seed weight, whereas the second component produced a strong negative correlation with days to flowering and days to maturity, indicating that these traits may explain the differences between landraces originating from different countries. Landraces from Korea showed higher variation in days to flowering and days to maturity; those from Bulgaria produced larger and heavier seeds; those from El Salvador produced smaller and lighter seeds and flowering and maturity occurred earlier. In addition, the landraces from El Salvador had relatively lower diversity compared to those from other countries, as they were grouped within a small cluster in the PCA. These evaluation results may provide important information for selecting breeding materials, and diversity analyses of landraces from different countries provide information for securing genetic resources.
Antioxidant Activities and Total Phenolic Contents of Three Legumes
이경준(Kyung Jun Lee),김가희(Ga-Hee Kim),이기안(Gi-An Lee),이정로(Jung-Ro Lee),조규택(Gyu-Taek Cho),마경호(Kyung-Ho Ma),이수경(Sookyeong Lee) 한국자원식물학회 2021 한국자원식물학회지 Vol.34 No.6
Legumes have been important components of the human diet. They contain not only protein, starch, and dietary fiber, but also various phenolic compounds such as flavonoids and phenolic acids. The importance of phenolic compounds to human health is well known due to their antioxidant activities. In this study, three legumes (adzuki beans, common beans, and black soybeans) frequently cultivated in Korea were evaluated for their total phenolic content (TPC) and antioxidant activities using DPPH (2,2-diphenyl-1-picrylhydrazyl), ABTS (2,2′-azinobis (3-ethylbenzothiazoline 6-sulfonate)), and FRAP (ferric reducing antioxidant potential) assays. In addition, correlations between agricultural traits and antioxidant activities of these three legumes were analyzed. Antioxidant activities assessed by DPPH, ABTS, and FRAP assays and TPC showed wide variations among legumes types and accessions. Among the three legumes, adzuki beans showed higher TPC and antioxidant activity than the other two legumes. In correlation analysis, seed size showed negative correlations with antioxidant activities and TPC. In principal component analysis and hierarchical clustering analysis, each of the three legumes was clearly separate. Results of this study can be used as basic information for developing functional materials for each legume. They can also help us understand the overall antioxidant activity of the three legumes.
이승범,장익,현도윤,이정로,김성훈,유은애,이수경,조규택,이경준,Lee, Seungbum,Jang, Ik,Hyun, Do Yoon,Lee, Jung-Ro,Kim, Seong-Hoon,Yoo, Eunae,Lee, Sookyeong,Cho, Gyu-Taek,Lee, Kyung Jun 한국작물학회 2020 한국작물학회지 Vol.65 No.4
Melon (Cucumis melo L.), one of the most important fruit crop species, is cultivated worldwide. In this study, a total of 206 melon accessions conserved at the National Agrobiodiversity Center (NAC) in RDA were characterized for nine morphological characteristics according to the NAC descriptor list. In addition, to confirm the genetic composition of each melon accession, genetic profiling was performed using 20 SSR markers. Among the 206 melon accessions, 159 (77.2%) were collected from Asia. The color of fruit flesh and skin were mostly 'white' (56.0%) and 'green' (49%), respectively. Days to female flowering (FD) and maturity (MD) of the accessions ranged from 58 to 72 and 17 to 63, respectively. The fruit length and width of the accessions ranged from 6.0 to 29.3 and 3.6 to 17.2 cm, respectively. The sugar content (SU) ranged from 2.5% to 13.2% with an average of 7.0%. In correlation analysis, SU showed positive and negative correlations with MD and FD, respectively. The accessions were classified into four clusters by cluster analysis. From the results of genetic profiling using 20 SSR markers, three accessions (K189118, K100486, and K190292) were expected to be inbred lines among 206 melon accessions. These results could expand the knowledge of the melon germplasm, providing valuable material for the development of new melon varieties to suit consumer tastes.
들깻잎의 caffeic acid와 rosmarinic acid 함량과 항산화 활성 비교를 통한 우수 유전자원 선발
김영지(Yeong-Jee Kim),이재은(Jae-Eun Lee),유은애(Eunae Yoo),이수경(Sookyeong Lee),Xiaohan Wang,Awraris Derbie Assefa,노형준(Hyungjun Noh) 한국자원식물학회 2022 한국자원식물학회지 Vol.35 No.1
Perilla is an annual plant in the family Lamiaceae and are widely cultivated in Asian countries. Perilla leaves are important sources of bioactive compounds and are reported to exhibit anti-inflammatory, antibacterial, anti-cancer and antioxidant effects, drawing attention as functional food materials. We examined caffeic acid, rosmarinic acid, total phenol content, and antioxidant activity in the leaves of 18 perilla accessions obtained from the gene bank of the National Agrobiodiversity Center, Jeonju, Korea. The caffeic acid content ranged between 9.86-27.52 ㎎/g with an average content of 17.75 ㎎/g while the level of. rosmarinic acid was in the range between 49.14 and 90.30 ㎎/g with an average content of 61.88 ㎎/g. The total polyphenol content ranged between 138.39 ㎍ GAE/㎎ dried extract (DE) and 378.19 ㎍ GAE/㎎ DE with an average content of 225.93 ㎍ GAE/㎎ DE. Cluster analysis based on the content of caffeic acid, rosmarinic acid. and antioxidant activity showed that the accessions collections were grouped in two distinct classes. The first group contained six genetic resources with high content of rosmarinic acid, and antioxidant activities respectively. The second group contained 12 genetic resources with high content of caffeic acid. These results could help develop new varieties of nutrient dense perilla resources.
김동민(Dong Min Kim),사규진(Kyu Jin Sa),이수경(Sookyeong Lee),이주경(Ju Kyong Lee) 한국육종학회 2021 한국육종학회지 Vol.53 No.3
To better understand the morphological variation in the 189 accessions of cultivated var. frutescens of Perilla crop preserved atthe RDA-Genebank in South Korea, morphological characteristics were investigated using seven traits related to leaf quality. In the principalcomponent analysis (PCA), the first and second principal components accounted for 28.9% and 19.7% of the total variance, respectively. In the first component, leaf color (QL1) and stem color (QL3) contributed positively, whereas the flowering period (QL5) and degree ofpubescence (QL6) contributed in a negative manner. In the second component, QL5 and QL6 contributed positively, whereas the fragranceof plants (QL7) contributed negatively. The results of PCA showed that the 189 Perilla accessions were clearly divided into three groupsbased on the 1st axis (X-axis), except for some accessions. However, the Perilla accessions collected in South Korea and abroad did notshow a clear geographical distribution between the collection areas. Correlation analysis among the seven traits of 189 Perilla accessionsshowed a positive correlation coefficient for the combination of QL1 and QL3, and QL5 and QL6, and a negative correlation for the combinationof color of the reverse side of the leaf and QL6, and QL5 and QL7. Therefore, the results of this study will provide useful informationfor the selection of useful resources for the development of leafy vegetable varieties of the Perilla crop and the preservation and managementof genetic resources of the Perilla crop preserved at the RDA-Genebank in South Korea.
β-Carotene, Cucumisin Content and Fruit Morphology of Melon (Cucumis melo L.) Germplasm Collections
김영지(Yeong-Jee Kim),황애진(Ae-Jin Hwang),노재종(Jae-Jong Noh),왕샤오한(Xiaohan Wang),이재은(Jae-Eun Lee),유은애(Eunae Yoo),이수경(Sookyeong Lee),황소정(Sojeong Hwang),김명곤(Myung-Kon Kim),노형준(Hyungjun Noh) 한국자원식물학회 2021 한국자원식물학회지 Vol.34 No.6
Melon fruits are a year-old plant in the family Cucurbitae and are the most cultivated fruit in tropical countries. Melon flesh is an important source of anti-cancer, antioxidant effects, attracting attention as a functional food. We investigated the morphological properties, β-carotene content, and cucumisin activity of seeds of 58 melon genetic resources. Melon resources have shown various morphological properties. Melons grouped by morphological properties were the five groups. β-carotene content varied between 82.34 ㎎/㎏, 86.75 ㎎/㎏, 25.56 ㎎/㎏, 86.25 ㎎/㎏, and 54.65 ㎎/ ㎏. Between β-carotene, cucumisin activity and other quantitative fruit morphological properties, the color of the pulp and the firmness of the pulp had a significant amount of correlation between the β-carotene content. However, cucumisin activity and β-carotene content had significant negative correlation, and the color of the fruit and shape of the fruit had significant negative correlation with β-carotene content and activity of cucumisin. Our study vindicated that high diversity in melon morphological characters of genetic sources that provide beneficial baseline data for the future and in the activity of β-carotene and cucumisin, and these results could predict indicators of β-carotene content by the length of leaf, the width of fruit, the length of joint, and the length of seed, and collectively the morphological properties of melons could help predict indicators of β-carotene content and help develop functional sarcoma and farmhouse cultivation.