华北农学报 ›› 2008, Vol. 23 ›› Issue (5): 97-103. doi: 10.7668/hbnxb.2008.05.021

所属专题: 白菜

• 论文 • 上一篇    下一篇

小白菜品种的SSR指纹图谱及遗传特异性分析

王笑一1,2, 于拴仓2, 张凤兰2, 余阳俊2, 赵岫云2, 张德双2   

  1. 1. 首都师范大学, 生命科学院, 北京, 100037;
    2. 北京市农林科学院, 蔬菜研究中心, 北京, 100097
  • 收稿日期:2008-06-16 出版日期:2008-10-28
  • 通讯作者: 张凤兰(1964-),女,山东莱阳人,博士,研究员,主要从事十字花科蔬菜育种工作。
  • 作者简介:王笑一(1983-),女,湖北武汉人,硕士,主要从事蔬菜分子育种方面的研究工作。
  • 基金资助:
    农业部“984”项目(2005-Z18)

SSR Fingerprinting and Genetic Distinctness of Pak-choi(Brassica rapa L.ssp.chinensis Makino)

WANG Xiao-yi1,2, YU Shuan-cang2, ZHANG Feng-lan2, YU Yang-jun2, ZHAO Xiu-yun2, ZHANG De-shuang2   

  1. 1. College of Life Science, Capital Normal University, Beijing 100037, China;
    2. Vegetable Reaserch Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
  • Received:2008-06-16 Published:2008-10-28

摘要: 为研制我国小白菜品种的DUS测试标准,搜集和筛选了形态差异大、不同生态类型的地方品种和目前生产上栽培面积大的杂交一代品种80份,在植物学性状调查的基础上,利用SSR标记对80份小白菜品种进行了遗传特异性分析,构建了SSR指纹图谱。从131对SSR引物中筛选了20对多态引物组合,对80个品种进行了分析,共检测出56个多态性条带,多态性比率3.68%,平均每对引物组合产生2.8个多态性条带。用5对引物Na12E02、Na12A08、Ni4D09、BRMS-269和BRMS-296的组合获得了每个品种的SSR特征带,可以将80个品种区分开来,从而建立80份小白菜品种的SSR指纹图谱。基于SSR标记的聚类分析表明,形态相似或来源相同的品种遗传基础相近,以遗传距离为0.36为划分标准,8.50%的品种具有遗传特异性。

关键词: 小白菜, SSR标记, 指纹图谱

Abstract: To develop DUS testing standards for Pak-choi,we collected and selected 80 Pak-choi varieties,which are landraces with different morphology and ecotype and hybrids in a large planting area in China.On the basis of botanic characters in vestigation,SSR fingerprinting and genetic distinctness of 80 non-heading Chinese cabbage varieties were an-alyzed by a set of SSR markers in this study.Out of SSR primer 131 pairs,20 pairs were screened out with polymorphism among 80 varities and 56 polymorphic bands were obtained.The polymorphism ratio was 73.68%,2.8 polymorphic bands in average and were amplified by a pair of SSR primers.80 varieties could be distinguished by a 5-primer-combination of Na12E02,Na12A08,Ni4D09,BRMS-269 and BRMS-296.SSR fingerprinting mapping for each variety was established.The results from genetic cluster showed that the varieties with similar morphological traits or the same origin have a close genetic base,87.50% of the tested varieties were distinguishable at a genetic distance threshold of 0.36.

Key words: Pakchoi, Simple sequence repeats (SSR), Fingerprinting

中图分类号: 

引用本文

王笑一, 于拴仓, 张凤兰, 余阳俊, 赵岫云, 张德双. 小白菜品种的SSR指纹图谱及遗传特异性分析[J]. 华北农学报, 2008, 23(5): 97-103. doi: 10.7668/hbnxb.2008.05.021.

WANG Xiao-yi, YU Shuan-cang, ZHANG Feng-lan, YU Yang-jun, ZHAO Xiu-yun, ZHANG De-shuang. SSR Fingerprinting and Genetic Distinctness of Pak-choi(Brassica rapa L.ssp.chinensis Makino)[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(5): 97-103. doi: 10.7668/hbnxb.2008.05.021.

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