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鹅观草属5种植物的核型研究
周永红; 孙根楼; 杨俊良;
1.四川农业大学小麦研究所;2.四川农业大学小麦研究所 都江堰市 611830;3.都江堰市 611830
摘要:
本文首次对我国5种鹅观草属Roegneria植物的核型进行了分析。5个种的染色体数目均为2n=4x=28。它们的核型是:高株鹅观草 R.altissima,2n=4x=28=26m+2sm(SAT);假花鳞草 R.anthosachnoides,2n=4x=28=22m+4sm+2sm(SAT);长芒鹅观草 R.dolichathera,2 n=4x=28=20m+6sm+2sm(SAT);林地鹅观草 R.sylva-tica,2n=4x=28=22m+4sm+2sm(SAT);多变鹅观草R.varia,2n=4x=28=20m+6sm+2sm(SAT)。它们的核型均属2A型,每种植物均有一对随体染色体。
关键词:  鹅观草属  核型  
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