| 真核生物染色体超级结构研究： Ⅰ.家猪中期染色体超级结构研究 |
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| 引用本文： | 詹铁生.真核生物染色体超级结构研究： Ⅰ.家猪中期染色体超级结构研究[J].遗传学报,1994,21(6):431-435. |
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| 作者姓名： | 詹铁生 |
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| 作者单位： | 西北农业大学畜牧系 |
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| 摘 要： | 用自行的多级光学放大系统，观察到染色体上１５ｎｍ大小的细微结构，用以研究致密状态的中期染色体超级结构，结合细胞化学技术，用特异性染色显示ＤＮＡ－核蛋白、酸性骨架蛋白在染色体上的构象，本文发表了家猪染色体超级结构的天然形态－螺旋构型照片，描述了染色体螺旋结构的特征及其参数，提出了染色体超级结构的螺旋模型。
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| 关 键 词： | 染色体 超级结构 有丝分裂 猪 真核生物 |
Study of Super-structure of Eukaryotic Chromosomes I.The Super-structure of Metaphase Chromosomes in Pigs |
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| Zhan Tiesheng.Study of Super-structure of Eukaryotic Chromosomes I.The Super-structure of Metaphase Chromosomes in Pigs[J].Journal of Genetics and Genomics,1994,21(6):431-435. |
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| Authors: | Zhan Tiesheng |
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| Institution: | Department of Domeslic Animal Science. Northwestern Agricultural University Shaanxi Yangling 712100 |
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| Abstract: | The super-structure of fine and close metaphase chromosomes was studied with the optical micro-multistage amplifying system designed by author himself, which could show the structure about 15nm in diameter of chromosomes. The micrographs of chromosomal super-structure made of DNA-nuclear protein or non histone protein wer shown respectively in the present paper. The chromotids were composed of long fibres about 20-30nm in diameter in a regular helical form directly.The Characters and paramerers of chromosomal super-structure were discribed, and a dynimical helical model of the chromosomal structure was suggested.This project supported by National Natural Sicience Foundation of China |
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| Keywords: | Chromosome Super-structure Mitosis |
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