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상추 유전자원의 원산지, 형태 및 엽색별 Bitter Sesquiterpene Lactones의 변이 KCI 등재

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한국국제농업개발학회지 (The Journal of the Korean Society of International Agriculture)
한국국제농업개발학회 (The Korean Society Of International Agriculture)
초록

Lettuce (Lactuca sativa L.) is one of the most important leafy vegetables in the world due to its health related benefits. Bitter sesquiterpene lactones (BSLs) are crucial secondary metabolites of lettuce which are useful in many physiological activities, and also has been used to relieve pain. This study was conducted to appraise the variability of phenotypic characteristics and the total content of BSLs in fifty lettuce germplasm. The germplasm collections exhibited wide variation in both qualitative and quantitative characters. The average plant weight was 333.3 g with a range from 60.0 to 700.0 g and the lactucin content was varied from 3.4 (IT265031) to 448.6 (IT300287) μg/g DW with an average concentration of 94.0 μg/g DW. Whereas lactucopicrin ranged from 6.8 (IT217859) to 2,714.9 (Superseonpung) μg/g DW with an average concentration of 805.8 μg/g DW. Total BSLs content was ranged from 19.6 (IT217859) to 2,821.9 (Superseonpung) μg/g DW with the average concentration of 899.8 μg/g DW. Significant (p≤0.05) differences in lactucin, lactucopicrin and total BSLs content were found among the germplasm collections. Leafy type lettuce germplasm collections originated from South Korea revealed the highest average total BSLs content (2,821.9 μg/g DW). Principal component analyses of lactucin and lactucopicrin generated based on leaf color and plant growth type yielded two principal components, PC1 and PC2, which accounted for 60.8 and 39.2 % of the total variance, respectively. Our study provides fundamental insights on phenotypic characteristics and the total content of lactucin and lactucopicrin of lettuce germplasm which may further help researchers and breeders to produce improved lettuce varieties.

저자
  • 최수산나(국립농업과학원 농업유전자원센터) | Susanna Choi (National Agrobiodiversity Center, National Institute of Agricultural Sciences)
  • 아와리스 아세파(국립농업과학원 농업유전자원센터) | Awraris Derbie Assefa (National Agrobiodiversity Center, National Institute of Agricultural Sciences)
  • 이재은(국립농업과학원 농업유전자원센터) | Jae-Eun Lee (National Agrobiodiversity Center, National Institute of Agricultural Sciences)
  • 성정숙(국립농업과학원 농업유전자원센터) | Jung-Sook Sung (National Agrobiodiversity Center, National Institute of Agricultural Sciences)
  • 허온숙(국립농업과학원 농업유전자원센터) | On-Sook Hur (National Agrobiodiversity Center, National Institute of Agricultural Sciences)
  • 노나영(국립농업과학원 농업유전자원센터) | Na-Young Ro (National Agrobiodiversity Center, National Institute of Agricultural Sciences)
  • 이석영(국립농업과학원 농업유전자원센터) | Sok-Young Lee (National Agrobiodiversity Center, National Institute of Agricultural Sciences)
  • 이호선(국립농업과학원 농업유전자원센터) | Ho-Sun Lee (National Agrobiodiversity Center, National Institute of Agricultural Sciences)
  • 이주희(국립농업과학원 농업유전자원센터) | Ju-Hee Rhee (National Agrobiodiversity Center, National Institute of Agricultural Sciences) Corresponding author