Theoretical and Applied Genetics

, Volume 131, Issue 3, pp 659–671 | Cite as

Genetic mapping and validation of the loci controlling 7S α′ and 11S A-type storage protein subunits in soybean [Glycine max (L.) Merr.]

  • Jeffrey D. BoehmJr.
  • Vi Nguyen
  • Rebecca M. Tashiro
  • Dale Anderson
  • Chun Shi
  • Xiaoguang Wu
  • Lorna Woodrow
  • Kangfu Yu
  • Yuhai Cui
  • Zenglu Li
Original Article


Key message

Four soybean storage protein subunit QTLs were mapped using bulked segregant analysis and an F2 population, which were validated with an F5 RIL population.


The storage protein globulins β-conglycinin (7S subunit) and glycinin (11S subunits) can affect the quantity and quality of proteins found in soybean seeds and account for more than 70% of the total soybean protein. Manipulating the storage protein subunits to enhance soymeal nutrition and for desirable tofu manufacturing characteristics are two end-use quality goals in soybean breeding programs. To aid in developing soybean cultivars with desired seed composition, an F2 mapping population (n = 448) and an F5 RIL population (n = 180) were developed by crossing high protein cultivar ‘Harovinton’ with the breeding line SQ97-0263_3-1a, which lacks the 7S α′, 11S A1, 11S A2, 11S A3 and 11S A4 subunits. The storage protein composition of each individual in the F2 and F5 populations were profiled using SDS-PAGE. Based on the presence/absence of the subunits, genomic DNA bulks were formed among the F2 plants to identify genomic regions controlling the 7S α′ and 11S protein subunits. By utilizing polymorphic SNPs between the bulks characterized with Illumina SoySNP50K iSelect BeadChips at targeted genomic regions, KASP assays were designed and used to map QTLs causing the loss of the subunits. Soybean storage protein QTLs were identified on Chromosome 3 (11S A1), Chromosome 10 (7S α′ and 11S A4), and Chromosome 13 (11S A3), which were also validated in the F5 RIL population. The results of this research could allow for the deployment of marker-assisted selection for desired storage protein subunits by screening breeding populations using the SNPs linked with the subunits of interest.



The authors would like to thank Michael Bissonnette from Agriculture and Agri-Food Canada for his assistance in planting and sample collection, Tatyana Nienow, Leon Chen, and Zi Shi from the University of Georgia for their technical assistance in marker design or genotyping. The research was funded by Agriculture and Agri-Food Canada A-Base, the Growing Forward II (GFII) Science Cluster projects, and the United Soybean Board.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

122_2017_3027_MOESM1_ESM.xlsx (15 kb)
Supplementary material 1 (XLSX 14 kb)


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2017

Authors and Affiliations

  1. 1.Department of Crop and Soil Sciences, Institute for Plant Breeding, Genetics, and GenomicsUniversity of GeorgiaAthensUSA
  2. 2.Agriculture and Agri-Food Canada, London Research and Development CentreLondonCanada
  3. 3.Agriculture and Agri-Food Canada, Harrow Research and Development CentreHarrowCanada

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