生物技术通报 ›› 2013, Vol. 0 ›› Issue (1): 107-110.

• 研究报告 • 上一篇    下一篇

复合EST-SSR 标记在大白菜品种鉴定中的应用

赵新 ,王永 ,兰青阔, 陈锐 ,李欧静, 余景会 ,朱珠 ,郭永泽   

  1. 天津市农业质量标准与检测技术研究所,天津 300381
  • 收稿日期:2012-07-25 修回日期:2013-01-31 出版日期:2013-01-30 发布日期:2013-01-30
  • 作者简介:赵新,女,硕士研究生,研究实习员,研究方向:农产品分子检测技术;E-mail :zhaoxin2008999@126.com
  • 基金资助:
    天津市科技支撑项目(10ZCGYNC00400),天津市应用基础及前沿技术研究计划(10JCYBJC09300)

Cultivars Identification of Chinese Cabbage Using Multiplex EST-SSR Markers

Zhao Xin ,Wang Yong ,Lan Qingkuo, Chen Rui ,Li Oujing ,Yu Jinghui ,Zhu Zhu ,Guo Yongze   

  1. Institute of Tianjin Agriculture Quality Standard and Testing Technology,Tianjin 300381
  • Received:2012-07-25 Revised:2013-01-31 Published:2013-01-30 Online:2013-01-30

摘要: 利用EST-SSR 分子标记技术,对12 份大白菜品种鉴定方法进行了研究。通过对GenBank 数据库中公布的大白菜EST 序列的分析,合成了30 对核心EST-SSR 引物,其中21 对均可得到有效扩增,10 对具有较高的多态性。为了更加高效的对大白菜品种进行鉴定,根据这10 对多态性较高的引物对12 份市售大白菜品种鉴定的结果及扩增条带的相互位置差异,研制了由多个引物对组成的2 套复合EST-SSR 标记,建立了多重SSR 的反应体系及反应条件。筛选得到的2 套标记组合,多态率分别为88.9% 和97.0%,多态信息量均为0.910%,数据表明这2 套复合标记技术可以表达大白菜品种间的多态性,高效准确的对12 份大白菜品种进行鉴定。

关键词: 大白菜 , 种子 , 品种鉴定 , 复合EST-SSR , 标记

Abstract: In this research, 12 Chinese cabbage cultivars identification method was studied by EST-SSR molecular markers technique.The results showed that there were 21 pairs of EST-SSR primers showing the amplification and 21 pairs of EST-SSR primers showing the highpolymorphism among 30 pairs of screened SSR primers, which were designed from expressed sequence tags(ESTs)in GenBank. In orderto identify Chinese cabbage high performance, using the identification results and the mutual position difference bands of 10 pairs of highlypolymorphic primers on 12 Chinese cabbage varieties cultivars, make up 2 sets of multiplex EST-SSR markers. The polymorphic rate were 88.9%and 97.0%, polymorphism information content was 0.910%, and results indicate that the 2 sets of multiplex EST-SSR markers could be used toindentification 12 Chinese cabbage cultivars high performance.

Key words: Chinese cabbage , Seed , Cultivars identification , Multiplex EST-SSR Markers