遗传 ›› 2006, Vol. 28 ›› Issue (12): 1573-1573~1579.doi: 10.1360/yc-006-1573

• 研究报告 • 上一篇    下一篇

利用小麦微卫星引物建立簇毛麦染色体组特异性标记

刘 成, 杨足君, 冯 娟, 周建平, 迟世华, 任正隆   

  1. (电子科技大学生命科学与技术学院,成都610054)

  • 收稿日期:2005-11-09 修回日期:2006-03-15 出版日期:2006-12-10 发布日期:2006-12-10
  • 通讯作者: 杨足君

Development of Dasypyrum Genome Specific Marker by Using Wheat Microsatellites

LIU Cheng, YANG Zu-Jun, FENG Juan, ZHOU Jian-Ping, CHI Shi-Hua, REN Zheng-Long

  

  1. (School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, China)
  • Received:2005-11-09 Revised:2006-03-15 Online:2006-12-10 Published:2006-12-10
  • Contact: YANG Zu-Jun

摘要:

选位于普通小麦1A-7A、1B-7B、1D-7D染色体上的102对微卫星引物对多年生簇毛麦、二倍体簇毛麦、小麦-簇毛麦双二倍体与后代和普通小麦中国春、R25、R111、MY11进行了PCR扩增, 发现引物对Xgwm301可以在含簇毛麦染色体的材料中扩出一条长415 bp的特异片段(命名为Xgwm301/415), 而所有供试小麦均未扩出此片段。进而用一套中国春-二倍体簇毛麦附加系来进行扩增, 发现1V-7V染色体均可以扩出该片段, 说明该片段为簇毛麦1V-7V染色体所共有。因此, Xgwm301/415是簇毛麦染色体组上的一个特异片段, 可以用来快速跟踪检测导入到普通小麦背景中的簇毛麦染色体。

关键词: SSR, 簇毛麦, 基因组特异性标记

Abstract:

One hundred and two SSR primer pairs, distributed in chromosome 1A to 7A, 1B to 7B, 1D to 7D of Triticum aestivum, were investigated on Dasypyrum breviaristatum, D.villosum, wheat-Dasypyrum amphiploids and its derivatives, with the control of common wheat Chinese Spring and elite wheat cultivars. A specific polymorphic DNA fragment of about 400 bp ( 415 bp-long by sequenced, named Xgwm301/415) amplified by primer pair Xgwm301 was obtained in all lines containing Dasypyrum chromosomes, but there were not the case in the tested common wheat. Furthermore, PCR analysis was performed on a set of T. aestivum-Dasypyrum addition, the result showed that all the seven pairs of villosum chromosomes contain Xgwm301/415. Therefore, Xgwm301/415 is a genome -specific polymorphic DNA segment for genera of Dasypyrum, and it could be used as a molecular marker for detection of chromosomes of Dasypyrum in wheat.

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