华北农学报 ›› 2008, Vol. 23 ›› Issue (1): 55-61. doi: 10.7668/hbnxb.2008.01.013

所属专题: 玉米

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2个玉米人工合成群体部分S1株系SSR分析与产量配合力研究

张华, 杨克诚   

  1. 四川农业大学 玉米研究所, 四川 雅安 625014
  • 收稿日期:2007-12-18 出版日期:2008-02-28
  • 通讯作者: 杨克诚(1940-),男,四川郫县人,教授,博士生导师,主要从事玉米遗传育种研究。
  • 作者简介:张华(1982-),男,四川江油人,硕士,主要从事玉米遗传育种研究。
  • 基金资助:
    国家“十五”科技攻关计划项目(20004BA525B04);教育部长江学者和创新团队发展计划项目(IRT0453);四川省玉米育种攻关项目

Studies on SSR Analysis of Two Synthesized Corn Population S1Strain and Yield Combining Ability

ZHANG Hua, YANG Ke-cheng   

  1. Maize Research Instiute, Sichuan Agricultural University, Yaan 625014, China
  • Received:2007-12-18 Published:2008-02-28

摘要: 以39002和39007群体不同基本株的S166个单株及其与3个测验种按不完全双列杂交试验设计组配198个组合为供试材料,对单株产量的配合力和供试群体S1的多态位点数,基因杂合度等参数进行了分析,并利用遗传相似系数进行聚类。结果表明,39002S1单株产量GCA的表现明显优于39007S1,39002S1的多态位点数、多态位点比例、基因型数、变异系数、基因杂合度等均大于39007S1,说明39002S1的遗传组成较丰富,同时表明39002S1自交后代的纯合速率可能比39007S1慢。此外,39002S1部分株系与39002S1部分株系聚在同一亚类,说明它们之间可能有相似的遗传背景。

关键词: 玉米, 群体, S1株系, SSR标记, 聚类分析, 配合力, 不完全双列杂交

Abstract: Many maize breeders have been paying attention and efforts to solve the problem of narrow genetic diversi-ty in maize. In order to broaden the genetic basis in maize breeding,It is necessary to know the genetic diversity in thecurrent maize hybrids. There may be two waysto study the genetic diversiy in breeding. The one isto analyze the parnts ofmaize hybrids. The other is to analyze the parents of maize hybrids. In this study, analyses of yield combining ability,SSRmolecular markerswas made to study in 198 combinationswhich come from different strains in the basic S166 plants of39007 and 39002 groups and three types of tests in Incomplete Diallel Cross Experiments. The results showed that 39002S1groups showed more excellent in GCA of yield than 39007S1groups,number of polymorphic locus, proportion of poly-morphic locus,genes heterozygosity parametersof material and gene heterozygote in 39002S1groups over 39007S1groups,39002S1groups have more genetic diversity than 39007S1groups. And part of strain in 39002S1groups have the same ge-netic background with 39002S1groups.

Key words: Maize, Group, S1strain, SSR, Cluster analysis, Combining ability, Incomplete diallel cross

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引用本文

张华, 杨克诚. 2个玉米人工合成群体部分S1株系SSR分析与产量配合力研究[J]. 华北农学报, 2008, 23(1): 55-61. doi: 10.7668/hbnxb.2008.01.013.

ZHANG Hua, YANG Ke-cheng. Studies on SSR Analysis of Two Synthesized Corn Population S1Strain and Yield Combining Ability[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(1): 55-61. doi: 10.7668/hbnxb.2008.01.013.

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