王珍;王文和;张杰;宋婷婷;姚允聪;

• 1:北京农学院园林学院
• 2:北京农学院植物科学与技术学院
• 3:北京农学院农业应用新技术北京市重点实验室

摘要(Abstract)：

【目的】观赏海棠常色紫红色叶类、变色叶类品种是苹果属植物中罕见的类型,因此有必要探讨其亲缘关系和遗传背景。【方法】以常色红色叶类品种、部分新叶有色类品种及常绿色叶类品种(含2个中国原产的近缘种)为试材,通过7组果实特征值、18组叶片特征值和10组花特征值,对几个典型的观赏海棠不同叶色类品种的亲缘关系和遗传多样性进行分析。【结果】UPGMA聚类结果表明,典型的常色红色叶类‘王族’的叶片性状与国内品种亲缘关系较远,与国外品种亲缘关系较近;花性状与‘绚丽’、‘雪球’、‘草莓果冻’、‘火焰’和‘粉芽’具有较近的亲缘关系;果实性状与‘红玉’和‘草莓果冻’有较近的亲缘关系。叶、花、果性状总聚类结果表明‘王族’与‘绚丽’、‘火焰’、‘草莓果冻’和‘粉芽’亲缘关系较近。主成分分析表明,各测试特征值的F检验方差分析结果与主成分分析结果相一致;形态特征的第一、二主成分散点图分布情况与形态特征的聚类结果基本一致。上述形态学分析结果与AFLP聚类分析结果部分吻合。【结论】常色紫红色叶类品种‘王族’与新叶有色叶类品种亲缘关系较近,与常色绿色叶类品种亲缘关系较远。

关键词(KeyWords)： 观赏海棠;形态多样性;遗传多样性;亲缘关系

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(31071785);; 北京市属高等学校创新团队建设与教师职业发展计划项目(IDHT20140509)

作者(Author): 王珍;王文和;张杰;宋婷婷;姚允聪;

Email:

DOI: 10.13925/j.cnki.gsxb.20140111

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