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中国龙葵复合种三类型的染色体数目研究
徐秀芳;张海洋;袁秋红;闫妍
1.湖州师范学院;2.哈尔滨师范大学生物系研究生;3.佳木斯大学生物系 浙江湖州313000;4.浙江湖州313000;5.黑龙江哈尔滨150000;6.黑龙江佳木斯154007
摘要:
用三种类型龙葵幼果为材料 ,通过常规染色体制片技术 ,获得细胞有丝分裂中期染色体装片。实验结果证实中国龙葵复合种内存在染色体倍性差异 :少花龙葵是二倍体 ( 2x=2 4) ;黄果龙葵是四倍体 ( 4x=48) ;龙葵是六倍体( 6x=72 )。为中国龙葵的系统分类与进化趋势的研究、遗传育种和开发利用提供了可靠的细胞学依据
关键词:  龙葵复合种    染色体数目    中国
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