The genetic diversity of annual wild soybeans grown in China

Dong, Yingshan; Zhuang, B. C.; Zhao, Limei; Sun, Honghe; He, Mingyue

doi:10.1007/s001220000522

Cited by 87 publications

(85 citation statements)

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“…cultivars (Supplementary Table 1). These soybean lines were chosen to represent the maximum spectrum of phenotypic variations based on our previous studies (Dong et al 2001. Fully expanded leaves from pooled individuals (ca.…”

Section: Plant Materialsmentioning

confidence: 99%

“…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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confidence: 99%

“…Nonetheless, to our knowledge, no information is available on the scope and extent of naturally occurring DNA methylation polymorphism in wild or cultivated soybeans. The present study was aimed at addressing this issue by investigating the level and pattern of DNA methylation polymorphism, as well as its possible correlation with genetic polymorphism, in annual wild and cultivated soybeans using representative accessions from the NGEPC, which were selected according to our previous investigations on a large number of morphological traits in the two species (Dong et al 2001.…”

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confidence: 99%

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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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Section: Plant Materialsmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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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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“…Figure 1 illustrates the tremendous diversity that exists for seed size, color, and shape. During domestication, seed weight has increased from the 0.5 to 2.5 g/100 seed found in most soja accessions (Dong et al, 1999), to 10 to 20 g/100 seed, and accessions exist with seed weights as high as 50 g/100 seed (Hymowitz, 2004).…”

Section: Unique Biological Opportunities In Soybeanmentioning

confidence: 99%

National Science Foundation-Sponsored Workshop Report. Draft Plan for Soybean Genomics

et al. 2004

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Recent efforts to coordinate and define a research strategy for soybean (Glycine max) genomics began with the establishment of a Soybean Genetics Executive Committee, which will serve as a communication focal point between the soybean research community and granting agencies. Secondly, a workshop was held to define a strategy to incorporate existing tools into a framework for advancing soybean genomics research. This workshop identified and ranked research priorities essential to making more informed decisions as to how to proceed with large scale sequencing and other genomics efforts. Most critical among these was the need to finalize a physical map and to obtain a better understanding of genome microstructure. Addressing these research needs will require pilot work on new technologies to demonstrate an ability to discriminate between recently duplicated regions in the soybean genome and pilot projects to analyze an adequate amount of random genome sequence to identify and catalog common repeats. The development of additional markers, reverse genetics tools, and bioinformatics is also necessary. Successful implementation of these goals will require close coordination among various working groups.

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“…The study of the genetic diversity of wild soybean is invaluable for efficient utilization, conservation and management of germplasm collections. Dong et al (2001) statistically analyzed the agronomic traits of the data base from the National Germplasm Evaluation Program of China to study the geographical distribution of accessions, genetic diversity of characters and genetic diversity centers of annual wild soybean. The results showed that most annual wild soybeans are distributed in northeast China, and the number of accessions decreases from the northeast to other directions in China.…”

Section: Genetic Diversity Of Soybean Germplasm Based On Morphologicamentioning

confidence: 99%

Genetic Diversity and Allele Mining in Soybean Germplasm

Sammour¹

2011

Soybean - Genetics and Novel Techniques for Yield Enhancement

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The genetic diversity of annual wild soybeans grown in China

Cited by 87 publications

References 3 publications

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

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

National Science Foundation-Sponsored Workshop Report. Draft Plan for Soybean Genomics

Genetic Diversity and Allele Mining in Soybean Germplasm

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