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中国农学通报 ›› 2019, Vol. 35 ›› Issue (14): 18-24.doi: 10.11924/j.issn.1000-6850.casb18050023

所属专题: 油料作物 园艺

• 农学 农业基础科学 • 上一篇    下一篇

甘蓝型油菜DH群体主要品质性状相关性及主成分分析

赵卫国1, 王灏1, 穆建新1, 关周博1, 李保军1, 赵小萍1, 陈文杰1, 塔娜1, 朝红波2, 罗斌1, 栗茂腾2   

  1. 1.陕西省杂交油菜研究中心/国家油料作物改良中心陕西油菜分中心;2.华中科技大学生命科学与技术学院
  • 收稿日期:2018-05-07 修回日期:2019-04-19 接受日期:2018-07-24 出版日期:2019-05-15 发布日期:2019-05-15
  • 通讯作者: 王灏
  • 基金资助:
    国家重点研发项目“黄淮区油菜优异种质资源精准鉴定与创新利用”(2016YFD01200);杨凌示范区产学研用协同创新重大项目(2018CXY- 11);陕西省创新能力支持计划项目(2017KCT-23);陕西科技资源开放共享平台项目“陕西省油菜种质资源创新共享平台项目”(2016FWPT-14);陕西 省农业科技攻关项目“油菜多基因性状高效聚合技术体系研究及种质资源创新”(2016NY-008);陕西省杨凌示范区科技计划项目“油菜CMS恢复基 因标记筛选及优异恢复系的分子选育”(2017NY-20)。

The Main Quality Traits of Brassica napus L. DH Population: Correlation Analysis and Principal Component Analysis

  • Received:2018-05-07 Revised:2019-04-19 Accepted:2018-07-24 Online:2019-05-15 Published:2019-05-15

摘要: 为了研究甘蓝型油菜品质性状之间的相关性,以期有效的改良油菜的品质性状,将170份DH纯系群体于2009-2012年进行田间试验,检测油菜种子品质性状,对其表型、相关性及主成分进行分析。结果表明:亲本中芥酸含量的变异系数最大(相差15.53%)。油菜DH群体中硫甙含量的变异幅度最大(128.43μmol/g饼粕),饱和脂肪酸的变异幅度最小(1.97%)。DH群体的品质性状表型变异幅度显示出了超亲遗传的现象。除了芥酸,含油量与其他组分呈现出极显著的负相关,特别是与蛋白质含量的负相关系数最大(-0.72);蛋白质含量与油酸、亚油酸、亚麻酸和硫甙含量均呈极显著的正相关,与含油量和芥酸呈极显著的负相关;除了蛋白质,其他组分含量皆与硫甙含量呈现出极显著或者不显著的负相关。通过主成分分析可将品质性状综合为油酸亚油酸酸因子,蛋白质因子,亚麻酸因子和硫甙因子,累积贡献率达到93.94%,基本反映甘蓝型油菜DH系群体脂肪酸组分信息。

关键词: 霍尔果斯, 霍尔果斯, 环境变化, 城市化, 气候资料, 连续性

Abstract: The aim of the study is to investigate the relationship between quality traits of Brassica napus, and promote and improve the quality traits of rapeseed. One hundred and seventy DH lines were tested at field experiments in 2009-2012 years and corresponding to phenotypic data of seed quality traits were obtained for three consecutive years. Through phenotypic, correlation and principal component analysis to analyze quality traits data of DH lines. The results showed that: the variation coefficient of the erucic acid content was the highest between the female and male parent (up to 15.53%). The variation range of glucosinolate content in DH population was the largest and reached to 128.43μmol/g, but the variation range of saturated fatty acids was the smallest, and only 1.97%. The quality phenotypic variation in DH population showed a phenomenon of over parental inheritance. In addition to erucic acid, oil content showed a significant negative correlation with other quality traits, especially the negative correlation coefficient with protein content was the largest (-0.72). The protein content was extremely significant positive correlation with oleic acid, linoleic acid, linolenic acid and glucosinolate content, but it was extremely negatively correlation with oil content and erucic acid content. Except for protein content, other quality traits contents showed extremely significant or not significant negative correlation with glucosinolate content. The quality traits can be synthesized into oleic and linoleic acid factors, protein factor, linolenic acid factor and glucosinolate factor via principal component analysis, and the cumulative contribution rate reached to 93.94%, which basically reflects the comprehensive information of the quality traits in DH population of Brassica napus.

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