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

Author

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  • Ji Yun Lee

    (Gyeongsangbuk-do Provincial Agricultural Research & Extension Service, Daegu 41404, Republic of Korea
    These authors contributed equally to this work.)

  • Hyun Jo

    (Department of Applied Biosciences, Kyungpook National University, Daegu 41566, Republic of Korea
    Upland-Field Machinery Research Center, Kyungpook National University, Daegu 41566, Republic of Korea
    These authors contributed equally to this work.)

  • 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
    Department of Integrative Biology, Kyungpook National University, Daegu 41566, Republic of Korea)

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.

Suggested Citation

  • Ji Yun Lee & Hyun Jo & Chang Ki Son & Jeong Suk Bae & Jeong-Dong Lee, 2023. "Genetic Diversity of Korean Black Soybean ( Glycine max L.) Germplasms with Green Cotyledons Based on Seed Composition Traits," Agriculture, MDPI, vol. 13(2), pages 1-16, February.
    • Handle: RePEc:gam:jagris:v:13:y:2023:i:2:p:406-:d:1063137
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    References listed on IDEAS

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    1. Glenn Milligan & Martha Cooper, 1985. "An examination of procedures for determining the number of clusters in a data set," Psychometrika, Springer;The Psychometric Society, vol. 50(2), pages 159-179, June.
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    Cited by:

    1. Edyta Paczos-Grzęda & Volker Mohler & Sylwia Sowa, 2023. "Germplasm Resources Exploration and Genetic Breeding of Crops," Agriculture, MDPI, vol. 13(12), pages 1-4, December.

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