Genetic Diversity of Korean Black Soybean ( Glycine max L.) Germplasms with Green Cotyledons Based on Seed Composition Traits

Ji Yun Lee, Hyun Jo, Chang Ki Son, Jeong Suk Bae and Jeong-Dong Lee ()
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Ji Yun Lee: Gyeongsangbuk-do Provincial Agricultural Research & Extension Service, Daegu 41404, Republic of Korea
Hyun Jo: Department of Applied Biosciences, Kyungpook National University, Daegu 41566, Republic of Korea
Chang Ki Son: Gyeongsangbuk-do Provincial Agricultural Research & Extension Service, Daegu 41404, Republic of Korea
Jeong Suk Bae: Gyeongsangbuk-do Provincial Agricultural Research & Extension Service, Daegu 41404, Republic of Korea
Jeong-Dong Lee: Department of Applied Biosciences, Kyungpook National University, Daegu 41566, Republic of Korea

Agriculture, 2023, vol. 13, issue 2, 1-16

Abstract: The demand for black soybeans ( Glycine max (L.) Merr.) with green cotyledons is increasing because of their health benefits. Therefore, it is important to understand the genetic diversity of black soybean germplasms and to develop a new soybean cultivar. This study aimed to evaluate genetic diversity among 469 black soybean germplasms with green cotyledons based on seed composition traits. Twenty seed composition traits were analyzed to conduct correlation analysis, principal component analysis (PCA), and cluster analysis, which indicated that black soybean germplasms were divided into four clusters. Black soybean germplasms in cluster 1 had higher crude fat, lutein, chlorophyll a , chlorophyll b , and total chlorophyll contents, but lower cyanidin-3-glucoside content than those in clusters 2 and 3. However, germplasms in clusters 2 and 3 had the highest cyanidin-3-glucoside content. Moreover, germplasms in cluster 1 had significantly higher palmitic acid content than those in clusters 2 and 3. Germplasms in clusters 2 and 3 had relatively high α-linolenic acid content. Germplasms in cluster 4 had the highest oleic acid content. This study highlights the genetic diversity of black soybean germplasms with different seed composition traits, and the results of this study can be beneficial for soybean breeding programs, enabling them to develop new black soybean cultivars with green cotyledons and improved seed composition traits.

Keywords: genetic diversity; black soybean; green cotyledon; seed composition; breeding (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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