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小花鬼针草的染色体数目及其自然多倍体类型
葛传吉; 丁作超; 徐维芬;
1.山东中医学院;2.山东医科大学附院
摘要:
本文对小花鬼针草的体细胞染色体进行了观察和计数,并对其染色体倍性和有关的细胞学及分类学等问题略作讨论,旨在为药用植物的分类、品种鉴别和育种实践等工作提供必要的细胞学资料。笔者观察到的小花鬼针草的体细胞染色体除了2n=48国外已有报道外,其中2n=24,36,72,84和96的二倍体、三倍体、六倍体、七倍体和八倍体等多倍体系列均为首次报道,此外2n=22,26,42和47等体细胞染色体的非整倍性变异,迄今也尚未见有报道。
关键词:  小花鬼针草  染色体数目  自然多倍体  
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