华北农学报 ›› 2004, Vol. 19 ›› Issue (3): 13-17. doi: 10.3321/j.issn:1000-7091.2004.03.004

所属专题: 玉米

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利用SSR标记划分爆裂玉米杂种优势群的研究

李玉玲1, 王延召1, 陈绍江2, 汤继华1   

  1. 1. 河南农业大学, 农学院, 河南郑州 450002;
    2. 中国农业大学, 国家玉米改良中心, 北京 100094
  • 收稿日期:2003-10-28 出版日期:2004-09-28
  • 作者简介:李玉玲(1962-),女,河南舞阳人,教授,在读博士生,主要从事玉米育种和教学工作.
  • 基金资助:
    河南省重大科技攻关项目(0122011700)

Application of SSR Markers to Heterotic Grouping of Popcorn Inbred Lines

LI Yu-ling1, WANG Yan-zhao1, CHEN Shao-jiang2, TANG Ji-hua1   

  1. 1. Agronomy College of Henan Agricultural University, Zhengzhou 450002, China;
    2. national Maize Improvement Center of China, China Agricultural University, Beijing 100094, China
  • Received:2003-10-28 Published:2004-09-28

摘要: 利用113对SSR多态性引物研究了来源比较广泛的6个爆裂玉米自交系的遗传多样性,并初步进行了杂种优势群划分.结果表明:供试自交系间存在较丰富的SSR多态性;6个爆裂玉米自交系可划分为6个杂种优势群,其中Ⅰ,Ⅴ,Ⅵ类群以国内种质选系为主,Ⅱ,Ⅲ,Ⅳ类群主要为外引杂交种选系,第Ⅰ类群又可分为3个亚群.该分群结果与杂交组合的组配效果相吻合,高优势组合的亲本均属于不同的优势类群(亚群),而在类群(亚群)内未组配出优良组合.SSR标记可以用于研究爆裂玉米自交系的种质基础.

关键词: 爆裂玉米, SSR标记, 遗传距离, 聚类分析, 杂种优势群

Abstract: SSRs were used to study the diversity of 56 popcorn inbred lines and their classification of heterot-is groups,among which 26 lines were selected from 8 Chinese germplasms,26 lines from 7 foreign hybrids and 4 were introduced from foreign country. The result showed that there were high level of SSR polymorphism a-mong 56 popcorn lines. According to SSR data with Words method, 56 inbred lines were classified into 6 het-erotic groups with 3 subgroups in group I,among which 26 lines derived from Chinese germplasms were mainly divided into I,V and VI groups,fl,' and N groups were lines from foreign hybrids. This cluster result cor-responded to previous crosses making and pedigree aNa+lysis. Consequently,SSR could be used to study the germplasm of popcorn inbred lines.

Key words: Popcorn, SSR marker, Genetic distance, Cluster aNa+lysis, Heterotic groups

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引用本文

李玉玲, 王延召, 陈绍江, 汤继华. 利用SSR标记划分爆裂玉米杂种优势群的研究[J]. 华北农学报, 2004, 19(3): 13-17. doi: 10.3321/j.issn:1000-7091.2004.03.004.

LI Yu-ling, WANG Yan-zhao, CHEN Shao-jiang, TANG Ji-hua. Application of SSR Markers to Heterotic Grouping of Popcorn Inbred Lines[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2004, 19(3): 13-17. doi: 10.3321/j.issn:1000-7091.2004.03.004.

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