遗传 ›› 2006, Vol. 28 ›› Issue (1): 57-64.

• 研究报告 • 上一篇    下一篇

小麦新品种“川麦42”低分子量谷蛋白亚基新基因的分子克隆

沈 蕾1; 龙 海1;2; 颜泽洪1;2; 魏育明1;2; 郑有良1; 2   

  1. (1.四川农业大学小麦研究所, 都江堰 611830; 2.四川农业大学西南作物基因资源与遗传改良教育部重点实验室,雅安 625014)
  • 收稿日期:2004-11-16 修回日期:2005-03-01 出版日期:2006-01-10 发布日期:2006-01-10
  • 通讯作者: 郑有良

Molecular Cloning of A Novel Low-molecular-weight Glutenin Subunit Gene from Wheat Variety “Chuanmai 42”

SHEN Lei1, LONG Hai1,2, YAN Ze-Hong1,2, WEI Yu-Ming1,2, ZHENG You-Liang1,2   

  1. (1.Triticeae Research Institute, Sichuan Agricultural University, Dujiangyan 611830, China;
  • Received:2004-11-16 Revised:2005-03-01 Online:2006-01-10 Published:2006-01-10
  • Contact: ZHENG You-Liang

摘要: 采用PCR方法从小麦(Triticum aestivum L.)新品种“川麦42”中克隆得到一个低分子量谷蛋白亚基(LMW-GS)新基因,暂命名为LMWCM42-1。该基因编码区全长846 bp,编码281个氨基酸,具有LMW-GS基因的典型结构特征。推导氨基酸序列比较显示,尽管LMWCM42-1与已知LMW-GS高度相似,但在N-末端重复区部分重复单元和C-末端区中仍存在明显差异。聚类分析表明,LMWCM42-1可能是由Glu-D3位点编码的。

关键词: 序列分析, 低分子量谷蛋白亚基基因, 小麦

Abstract: Using PCR-amplification method, the coding sequences of a novel low-molecular-weight glutenin (LMW-GS) gene, LMWCM42-1, was isolated from the genomic DNA of wheat (Triticum aestivum L.) variety Chuanmai 42. The full coding region of this gene consisted of 846 nucleotides, and encoded a protein with 281 amino acids. LMWCM42-1 is a typical low-molecular-weight glutenin subunit (LMW-GS) gene. In spite of high similarity with the known LMW-GSs, LMWCM42-1 was quite different from the known LMW-GS in the N-terminal, central repetitive domain and C-terminal domain. It was found that LMWCM42-1 was located within the Glu-D3 locus by phylogenetic analysis.

中图分类号: