文章基本信息

标题：Cytological Studies of Nymphaea Species available in Bangladesh
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作者：A Hossain ; G Kabir ; MM Ud-deen 等
期刊名称：Journal of Bio-Science
印刷版ISSN：1023-8654
出版年度：2007
卷号：15
期号：0
页码：7-13
DOI：10.3329/jbs.v15i0.2197
语种：English
出版社：Institute of Biological Sciences, Rajshahi University
摘要：The present investigation was undertaken in order to study the somatic karyotypes of four species of Nymphaea available in Bangladesh. Karyotypes of four species of Nymphaea revealed that most of the chromosomes were metacentric indicating their primitive nature and chromosome counts revealed a polyploid series of tetraploid, pentaploid and hexaploid based on X=14. Findings of the present study indicated that Nymphaea pubescens is a hexaploid (6X=84, white flower) which might have originated by chromosome doubling of Nymphaea daubeniana (3X=42) while Nymphaea rubra and Nymphaea nouchali (Type-1) are tetraploid (4X=56) species. Key words: Nymphaea , karyotype Â doi: 10.3329/jbs.v15i0.2197 J. bio-sci. 15: 7-13, 2007 Â
关键词：Nymphaea, karyotype