| 木薯体细胞染色体银染显带的带型特点 |
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| 引用本文： | 庄南生,曾霞,唐燕琼,王英. 木薯体细胞染色体银染显带的带型特点[J]. 热带作物学报, 2003, 24(1): 52-54 |
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| 作者姓名： | 庄南生 曾霞 唐燕琼 王英 |
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| 作者单位： | 华南热带农业大学农学院,海南,儋州,571737 |
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| 摘 要： | 以木薯(Manihot esculenta)“东方一号”种质为材料，对木薯体细胞染色体银染显带的带型特点进行了观察分析。结果表明，木薯体细胞染色体银染显带不存在核仁组织区域(NOR)的特异性，木薯体细胞所具有的全部染色体(36条)均能显示银染带，每条染色体上有2-5条银染带：根据银染带在染色体上的位置可区分为端粒带、次缢痕带、着丝粒带、居间带4种类型。因此，可将银染带作为木薯染色体的识别标记。对木薯中NOR区的数目也进行了讨论。
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| 关 键 词： | 木薯 体细胞染色体 银染带 带型特点 核仁组织区域 |
| 修稿时间： | 2002-06-26 |
Ag-Banding of Somatic Chromosomes of Cassava |
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| Zhuang Nansheng Zeng Xia Tang Yanqiong Wang Ying. Ag-Banding of Somatic Chromosomes of Cassava[J]. Chinese Journal of Tropical Crops, 2003, 24(1): 52-54 |
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| Authors: | Zhuang Nansheng Zeng Xia Tang Yanqiong Wang Ying |
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| Abstract: | Silver staining in cassava(Manihot esculenta)was studied.The results indicated that nucleolar organizer regions(NORs)were not specially stained.Ag-bands could be observed on all36chromosomes each of which had2to5bands.NOR-bands,telomere -bands,centromere -bands and intercalary bands could be distinguished ac cording to the position of Ag -bands on chromosome.Therefore,Ag -bands can be used as identification marker of chromosomes of cassava.The NOR number in cassava is also discussed. |
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| Keywords: | cassava Ag-bands chromosome |
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