Genetic variation in South Korean natural populations of wild soybean (Glycine soja)

Yu, Hongrun; Kiang, Y. T.

doi:10.1007/bf00029875

Cited by 41 publications

(32 citation statements)

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“…Japanese accessions showed high genetic relationship to Korean soybean gene pools, whereas Southeast Asian accessions were similar to Chinese accessions. As previous studies (Lee et al, 2011;Lee et al, 2008;Li & Nelson, 2001;Yu & Kiang, 1993), soybean germplasm of Korea region conserve distinct genetic diversity compared to Chinese accessions, and Japanese and Korean accessions were more similar to each other. By model-based bayesian clustering method showed that Korean soybean accessions could be subdivided into five subpopulation (Pop-2~Pop6).…”

Section: Discussionsupporting

confidence: 57%

“…Recently, the usage of soybean for biodiesel has made this crop more economically important, and the whole-genome sequencing of Williams 82 (G. max) and IT182932 (G. soja) have been completed accordingly (Hisano et al, 2007;Kim et al, 2010;Schmutz et al, 2010). Yu & Kiang (1993) reported that Korea might be one of the major center of soybean origins based on electrophoretic assays of wild soybean (G. soja) and cultivated soybeans (G. max). Lee et al (2008) also suggested that Korea is a major center of diversity for wild soybean and potentially could serve useful alleles not found in other parts of the world while Dong et al (2004) regarded northeastern region of China as major center of soybean origin.…”

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confidence: 99%

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Genetic Diversity and Population Structure of Korean Soybean Collection Using 75 Microsatellite Markers

Lee¹,

Choi²,

Yi³

et al. 2014

Korean J. Crop Sci.

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Soybean (Glycine max L.) is crucial legume crop as source of high quality vegetable protein and oil, and Korea is regarded as a part of center of soybean origin. To expand the information of conserved genetic diversity, we analyzed the genetic variability of soybean collection mainly introduced Korean accessions using 75 microsatellite markers. A total of 1,503 alleles with an average value of 20.0 alleles were detected among 644 accessions. Korean collection revealed average allele number of 13.4 while Chinese, Japanese and Southeast Asian accessions showed 9.0, 5.4 and 6.5 mean alleles, respectively. Especially, Korean accessions showed more number of private allele per locus as 3.4 contrary to other geographical groups. The mean expected heterozygosity and polymorphic information content was 0.654 and 0.616, respectively, and expected heterozygosity values were not significantly distinguished according to the geographical groups. The phylogenetic dendrogram and deduced population structure based on DNA profiles of 75 SSR loci showed Korean accessions formed distinct gene pool against Chinese accessions, and could be divided into five subpopulations. Korean soybean accessions have specific genetic diversity and might be serve the valuable alleles for bio-industry as a part of the center of soybean origin.

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Section: Discussionsupporting

confidence: 57%

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confidence: 99%

Genetic Diversity and Population Structure of Korean Soybean Collection Using 75 Microsatellite Markers

Lee¹,

Choi²,

Yi³

et al. 2014

Korean J. Crop Sci.

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“…The biological diversity in both cultivated and annual wild soybeans has been investigated by phenotypic analysis (Dong et al 2001, as well as by using various molecular markers like isozymes, RFLP, SSR (Keim et al 1992;Yu and Kiang 1993;Skorupska et al 1993;Dong et al 2001Dong et al , 2004Abe et al 2003;Kuroda et al 2006;. As expected for a large and complex genome of polyploid origin Walling et al 2006), the soybean genome is heavily methylated by 5-methyl-cytosines, predominantly at repetitive sequences located in the heterochromatic centromeric regions (Zhu et al 1994;Young et al 1999).…”

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DNA methylation polymorphism in annual wild soybean (Glycine soja Sieb. et Zucc.) and cultivated soybean (G. max L. Merr.)

Zhong¹,

Wang²,

Liu³

et al. 2009

Can. J. Plant Sci.

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. 2009. DNA methylation polymorphism in annual wild soybean (Glycine soja Sieb. et Zucc.) and cultivated soybean (G. max L. Merr.). Can. J. Plant Sci. 89: 851Á863. To study DNA methylation polymorphism in soybean, 20 and 27 lines of annual wild and cultivated soybeans, respectively, were selected from previously established "Soybean Core Collections in China", and subjected to methylation-sensitive amplified polymorphism (MSAP) analysis. Twenty-seven primer pairs generated 984 CG/CNG methylation sites across the 47 lines, and the data were dissected into methylation-sensitive (MS) and methylation-insensitive(MIS) polymorphisms. The calculated MSP vs. MISP for wild soybeans were 34.65 vs. 34.76%, while corresponding results for the cultivated soybeans were 47.05 vs. 47.15%, indicating higher levels of MSP and MISP in cultivated than in wild soybeans. These results were incongruent with the amplified fragment length polymorphism (AFLP) analysis of the same soybean lines, and suggested enhanced DNA methylation polymorphism due to human selection. All three markers, MSP, MISP and AFLP, enabled clustering of the soybean lines into two distinct groups each predominantly containing wild or cultivated ones. Homology search indicated that 12 out of 24 sequenced MSPs had significant similarities to known-function or predicated genes, suggesting possible functional relevance of the methylation polymorphism. No significant association between MSP and MISP or MSP and AFLP was detected. Our results suggest that DNA methylation polymorphism in soybean has been under both natural and human selections, implicating possible roles of this epigenetic modification in genome evolution and domestication.

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“…Some researchers identified the distribution of the genetic diversity of G. soja in Korea. Yu and Kiang (1993) examined 35 loci in 17 isozymes and trypsin inhibitors and reported a surprisingly high variation, suggesting that Korea is likely to be one of the major soybean gene centers. An analysis of genetic variation using RAPD and isozyme techniques also indicated that overall genetic variation among the wild soybeans was greater than that of the cultivated soybeans.…”

Section: Introductionmentioning

confidence: 99%

A New Glycine soja Germplasm Accession with Green Seed-coat Color

et al. 2005

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Wild soybean (Glycine soja) is a useful genetic resource for broadening the genetic background of cultivated soybean. We selected a wild type soybean line showing a unique character consisting of a green seed-coat color at Yeongchun in Korea 1996 and designated it as KLG10084. The objectives of the present study were as follows; (1) to evaluate the agronomic characters of KLG10084 by comparing them to those of other wildtype accessions and cultivars, and (2) to evaluate the possibility of improving the seed-coat color in an interspecific cross of G. max × G. soja. The major agronomic traits of KLG10084 were investigated and a genetic relationship was analyzed by comparing it to wild soybean (G. soja) and soybean cultivars (G. max) using the RAPD technique. KLG10084 was similar to IT184256, one of the G. soja accessions tested, that was known as a wild soybean exhibiting typical wild-type characters in stem diameter, pod size at maturity, seed size, hard seed and viny growth habit. A cluster analysis using UPGMA suggested that KLG10084 belonged to the group of wild soybean. It strongly indicated that the KLG10084 line corresponded to an accession of G. soja showing a green seed-coat color, based on morphological and RAPD analysis. The populations were generated by crossing KLG10084 with two different G. max cultivars, 'Sobaegnamulkong' and 'Eunhakong', and backcrossing it to the G. max parent to obtain BC 0 to BC 3 populations. The seed-coat color was evaluated on the populations representing each generation. The percentage of acceptable seed-coat color was 74% in the BC 0 F 2 , 90% in the BC 1 F 2 and 97% in the BC 2 F 2 generations, and approximately 100% in the BC 3 F 2 generation in the population of Eunhakong × KLG10084. These results indicated that a single backcross is required to recover a commercially desirable seed-coat color in a population derived from an interspecific cross of G. max × G. soja when KLG10084 is used as a G. soja parent. Therefore, KLG10084 was considered to be a valuable gene source in overcoming the seed-coat color in interspecific crosses and was particularly useful for shortening soybean breeding programs by reducing the number of backcrosses that are required.

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Genetic variation in South Korean natural populations of wild soybean (Glycine soja)

Cited by 41 publications

References 23 publications

Genetic Diversity and Population Structure of Korean Soybean Collection Using 75 Microsatellite Markers

Genetic Diversity and Population Structure of Korean Soybean Collection Using 75 Microsatellite Markers

DNA methylation polymorphism in annual wild soybean (Glycine soja Sieb. et Zucc.) and cultivated soybean (G. max L. Merr.)

A New Glycine soja Germplasm Accession with Green Seed-coat Color

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