| 达乌尔黄鼠显带染色体的研究 |
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| 引用本文： | 李翔,马继霞,吴鹤龄. 达乌尔黄鼠显带染色体的研究[J]. 兽类学报, 1986, 6(4): 241 |
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| 作者姓名： | 李翔 马继霞 吴鹤龄 |
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| 作者单位： | 1. 广西师范大学生物系;2. 北京大学生物系 |
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| 摘 要： | 达乌尔黄鼠分布在我国北方及蒙古和苏联等区域,对牧草及农田危害甚大。有关达乌尔黄鼠的核型国内外已有报道(Lyapunova等,1970;蔡有余等,1985;马继霞等,1985)。签于其染色体的一些特征,达乌尔黄鼠有可能成为染色体工程及检测环境诱变剂等方面的实验材料。虽然苏联Lyapunova等(1978,1980)对黄鼠属某些种的G-带和C-带进行过比较研究,我国蔡有余等(1985)对达乌尔黄鼠的C-带和Ag-NOR进行了观察,但无法对其染色体进行逐个地准确识别,特别是对Χ染体色的正确识别。为此,我们对达乌尔黄鼠的显带染色体进行了较详细的研究。
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| 关 键 词： | 达乌尔黄鼠 染色体 G-带核型 C-带核型 |
STUDY ON THE BANDED CHROMOSOMES OF CITELLUS DAURICUS |
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| LI Xiang,MA Jixia,WU Heling. STUDY ON THE BANDED CHROMOSOMES OF CITELLUS DAURICUS[J]. Acta Theriologica Sinica, 1986, 6(4): 241 |
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| Authors: | LI Xiang MA Jixia WU Heling |
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| Affiliation: | rtment of Biology, Peking University |
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| Abstract: | The banded chromosomes of G-banding and C-banding of Citellus dauricus have been studied.T-G method was used in G-banding and BSG method in C-banding. According to the characteristics of banded patterns, the idi-ograms of G-banded and C-banded karyotypes were depicted.The chromosomes of G-banded and C-banded patterns were analyzed. The results show that each homologous pair has its own special G-banded patterns and C-banded patterns, so it is easy to be distinguished and to be paired exactly in the karyotype. The X chromosomes are similar to No.1 chromosome in length and in G-banded patterns. However, there are 3 deep and 1 dark bands in the short arm of the X chromosome, but there are 1 deep and 2 dark bands in the short arm of No.1 chromosome. The C-banded patterns show that all of the chromosomes except Y chromosome have cent-romeric heterochromatin.There are obvious differences in each of the homologous pairs in the amount and the distribution. The long arms of No.2 and No.3 are with interstitial heterochromatin. |
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| Keywords: | Ground squirrel Citellus dauricus Chromosome G-banded karyotype C-banded karyotype |
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