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한국자원식물학회지 제36권 제4호.jpg
KCI등재 학술저널

아시아 및 아프리카 원산 참깨(Sesame indicum L.) 유전자원의 농업형질과 리그난 함량 평가

Characterization of Agronomic Traits and Evaluation of Lignan Contents in Asian and African Sesame (Sesamum indicum L.) Germplasms

DOI : 10.7732/kjpr.2023.36.4.413
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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 ㎎/g, sesamolin: 0.1-3.5 ㎎/g, lignan: 1.1-16.1 ㎎/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.

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