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中国农学通报

中国农学通报 ›› 2014, Vol. 30 ›› Issue (24): 123-128.doi: 10.11924/j.issn.1000-6850.2014-0299

所属专题： 油料作物

• 农学 农业基础科学 • 上一篇    下一篇

北方大豆核心种质油份含量及脂肪酸组分的表型鉴定与聚类分析

邱红梅   

  • 收稿日期:2014-02-11 修回日期:2014-04-02 出版日期:2014-08-25 发布日期:2014-08-25
  • 基金资助:
    863计划课题“高产优质抗逆大豆分子育种与品种创制”(2012AA101106)；国家大豆产业技术体系资助项目(CARS-04-PS11)；吉林省自然基金“野生大豆抗旱基因的挖掘”(20140101142JC)。

Phenotype Identification and Cluster Analysis of North Soybean Based on Oil Content and Fatty Acid Composition

  • Received:2014-02-11 Revised:2014-04-02 Online:2014-08-25 Published:2014-08-25

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摘要： 为提高优质油份组成品种的选择效率，根据目标性状有的放矢的选配杂交亲本是前提。对我国240份北方大豆核心种质资源的油份及5个脂肪酸组分进行测定，通过遗传多样性、主成分和聚类分析，对其进行表型鉴定及基因型分类。结果表明，北方大豆核心种质油份及脂肪酸组分变异较丰富，遗传多样性程度较高。根据主成分分析，筛选到3个主成分进行聚类分析，通过聚类分析将供试种质资源分为7类。第1、6、7类群为高油群体，第3、5类群为次高油群体，第2、4类群为低油群体，7个类群间的脂肪酸组分各有差异。根据育种目标在群体间选配亲本，可提高品质育种的效率。

关键词: 分子遗传图谱, 分子遗传图谱

Abstract: Selecting of hybrid parents according to the target traits is the premise of improving selection efficiency of soybean cultivars with high quality oil content. The content of oil and 5 fatty acids was measured in 240 soybean germplasm of North China. Phenotypes and genotypes were identified and classified by genetic diversity, principle components and cluster analysis. The results showed that there were rich genetic variation and diversity for the content of oil and 5 fatty acids in 240 soybean collections in North China. According to the principle components analysis, three principle components were screened. Cluster analysis was conducted with three principle components. 240 germplasm resources were divided into seven genetic groups by clustering analysis. Group 1, 6, 7 were high oil content cluster; Group 3, 5 were the second-rate high oil content cluster; Group 2, 4 were low oil content cluster. The fatty acids compositions showed differences among 7 groups. According to the breeding target, selecting parents from groups could improve the efficiency of breeding high quality cultivars.