数字农科院2.0

二倍体栽培棉45SrDNA-FISH作图及核型比较

文献类型: 中文期刊

作者: 别墅;王坤波;王春英;宋国立;孔繁玲;刘方;刘三宏;黎绍惠;张香娣;王玉红

作者机构:

关键词: 棉花;体细胞染色体;rDNA;荧光原位杂交

期刊名称:棉花学报

ISSN: 1002-7807

年卷期: 2004 年 16 卷 04 期

页码: 223-228

收录情况: 北大核心 ; CSCD

摘要: 以45SrDNA为探针,获得了草棉体、亚洲棉体细胞染色体的荧光原位杂交(FISH)资料。从rDNA FISH实验结果看,草棉有6个杂交信号,也显示了3对核仁组织区(NOR),分别位于第3、9、13对同源染色体上;亚洲棉有4个杂交信号,显示了2对NOR,分别位于第6、13对同源染色体上。草棉、亚洲棉基于45SrDAN FISH的核型分别为:2n=2x=26=20m(4sat)+6sm(2sat)和2n=2x=26=26m(4sat)。

分类号: S562.035.3

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