| 豚鼠染色体核型及带型的研究 |
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| 引用本文： | 陈雪梅,王侠,刀筱芳,王姑固,陈智华,钟金城.豚鼠染色体核型及带型的研究[J].青海畜牧兽医杂志,2010,40(6):5-6. |
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| 作者姓名： | 陈雪梅 王侠 刀筱芳 王姑固 陈智华 钟金城 |
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| 作者单位： | 西南民族大学; |
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| 摘 要： | 用骨髓细胞染色体制备法研究了豚鼠染色体核型及带型。结果表明：豚鼠染色体核型为2n=64,雄豚鼠为XY,雌豚鼠为XX;在常染色体中,亚中着丝粒或近端着丝粒的染色体有14对、端着丝粒的有17对;X染色体为中着丝粒,Y染色体为端着丝粒。所有染色体均能出现明显的C带带型,其中常染色体和X染色体的着丝粒部位被深染,两个臂均为浅染;Y染色体几乎全部深染,极易识别。染色体标本经G显带技术处理后,豚鼠常染色体和性染色体的着丝粒区均浅染,两臂上显示出清晰的G-带带型。Ag-NOR s位于1、19、20号染色体上,Ag-NOR s的众数为3个,分布范围1~6之间,Ag-NOR s具有多态性,在不同的染色体上银染的颗粒大小、深浅度不同。
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| 关 键 词： | 豚鼠：染色体 带型 |
Research on the Karyotype and Banding Pattern of Chromosome in Guinea Pig Cavia cobaya |
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| CHEN Xue-mei et al..Research on the Karyotype and Banding Pattern of Chromosome in Guinea Pig Cavia cobaya[J].Chinese Qinghai Journal of Animal and Veterinary Sciences,2010,40(6):5-6. |
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| Authors: | CHEN Xue-mei |
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| Institution: | CHEN Xue-mei et al.(Southwest University for Nationalities,Chengdu,610041) |
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| Abstract: | Chromosomes from bone marrow cells of guinea pig cavia cobaya were used to study the karyotype and banding pattern in this experiment.The results showed that the karyotype was 2n=64.Male guinea pig was XY and female was XX.It consisted of 14 pairs of the sub-metacentric or acrocentric chromosomes and 17 pairs of telocentric in autosome.X-chromosomes were found to be metacentric,while Y-chromosomes were found to be sub-metacentric.All chromosomes can appear C-band pattern obviously.which the centromere of au... |
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| Keywords: | Guinea pig Chromosome Banding pattern |
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