Journal of Integrative Agriculture ›› 2014, Vol. 13 ›› Issue (9): 1854-1864.DOI: 10.1016/S2095-3119(13)60579-1

• 论文 •    下一篇

A Dominant Locus, qBSC-1, Controls β Subunit Content of Seed Storage Protein in Soybean (Glycine max (L.) Merri.)

 WANG Jun, LIU Lin, GUO Yong, WANG Yong-hui, ZHANG Le, JIN Long-guo, GUAN Rong-xia, LIU Zhang-xiong, WANG Lin-lin, CHANG Ru-zhen , QIU Li-juan   

  1. National Key Facility for Gene Resources and Genetic Improvement (NFCRI)/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R.China
  • 收稿日期:2013-06-17 出版日期:2014-09-22 发布日期:2014-09-24
  • 通讯作者: QIU Li-juan, Tel: +86-10-82105843, E-mail: qiulijuan@caas.cn
  • 基金资助:

    This research was funded by the National High-Tech R&D Program of China (2012AA101106), the National Basic Research Program of China (2009CB118404), the Key Technologies R&D Program of China during the 12th Five-Year Plan period (2011BAD35B06), and the National Transgenic Major Program, China (2008ZX08009-003).

A Dominant Locus, qBSC-1, Controls β Subunit Content of Seed Storage Protein in Soybean (Glycine max (L.) Merri.)

 WANG Jun, LIU Lin, GUO Yong, WANG Yong-hui, ZHANG Le, JIN Long-guo, GUAN Rong-xia, LIU Zhang-xiong, WANG Lin-lin, CHANG Ru-zhen , QIU Li-juan   

  1. National Key Facility for Gene Resources and Genetic Improvement (NFCRI)/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R.China
  • Received:2013-06-17 Online:2014-09-22 Published:2014-09-24
  • Contact: QIU Li-juan, Tel: +86-10-82105843, E-mail: qiulijuan@caas.cn
  • Supported by:

    This research was funded by the National High-Tech R&D Program of China (2012AA101106), the National Basic Research Program of China (2009CB118404), the Key Technologies R&D Program of China during the 12th Five-Year Plan period (2011BAD35B06), and the National Transgenic Major Program, China (2008ZX08009-003).

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摘要： Soybean seed storage protein is one of the most important plant vegetable proteins, and β subunit is of great significance to enhance soybean protein quality and processing property. F2 segregated population and residual heterozygous lines (RHL) derived from the cross between Yangyandou (low level of β subunit) and Zhonghuang 13 (normal level of β subunit) were used for mapping of β subunit content. Our results showed that β subunit content was controlled by a single dominant locus, qBSC-1 (β subunit content), which was mapped to a region of 11.9 cM on chromosome 20 in F2 population of 85 individuals. This region was narrowed down to 2.5 cM between BARCSOYSSR_20_0997 and BARCSOYSSR_20_0910 in RHL with a larger population size of 246 individuals. There were 48 predicted genes within qBSC-1 region based on the reference genome (Glyma 1.0, Williams 82), including the two copies of β subunit coding gene CG4. An InDel marker developed from a thymine (TT) insertion in one copy of CG4 promoter region in Yangyandou cosegregrated with BARCSOYSSR_20_0975 within qBSC-1 region, suggesting that this InDel marker maybe useful for marker-assisted selection (MAS).

关键词: soybean seed storage protein , &beta, subunit , QTL mapping

Abstract: Soybean seed storage protein is one of the most important plant vegetable proteins, and β subunit is of great significance to enhance soybean protein quality and processing property. F2 segregated population and residual heterozygous lines (RHL) derived from the cross between Yangyandou (low level of β subunit) and Zhonghuang 13 (normal level of β subunit) were used for mapping of β subunit content. Our results showed that β subunit content was controlled by a single dominant locus, qBSC-1 (β subunit content), which was mapped to a region of 11.9 cM on chromosome 20 in F2 population of 85 individuals. This region was narrowed down to 2.5 cM between BARCSOYSSR_20_0997 and BARCSOYSSR_20_0910 in RHL with a larger population size of 246 individuals. There were 48 predicted genes within qBSC-1 region based on the reference genome (Glyma 1.0, Williams 82), including the two copies of β subunit coding gene CG4. An InDel marker developed from a thymine (TT) insertion in one copy of CG4 promoter region in Yangyandou cosegregrated with BARCSOYSSR_20_0975 within qBSC-1 region, suggesting that this InDel marker maybe useful for marker-assisted selection (MAS).

Key words: soybean seed storage protein , &beta, subunit , QTL mapping