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用分支分析方法研究中华猕猴桃与美味猕猴桃的亲缘关系
熊治廷;   
中国科学院武汉植物研究所 武汉 430074
摘要:
本文根据形态特征和染色体资料,以毛花猕猴桃为外类群,用分支分析法研究美味猕猴桃与中华猕猴桃(含二倍体和四倍体)的亲缘关系,产生了三个步长相等的Wagner树。其中一树能较好地与现有地理分布和细胞学资料吻合。反映出中华猕猴桃二倍体衍生出四倍体类型,二者具有直接祖裔关系:美味猕猴桃与中华猕猴桃是已分支发展的两个分类群,但二者亲缘关系密切。可能属于同一物种复合体的两个近缘物种。
关键词:  中华猕猴桃  美味猕猴桃  分支分析  
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