| 西安地区黄胸鼠(Rattusflavipectus)的染色体研究 |
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| 引用本文： | 张锡然,陈宜峰,郭健民,王建华,范晖.西安地区黄胸鼠(Rattusflavipectus)的染色体研究[J].南京师大学报,1992(4). |
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| 作者姓名： | 张锡然 陈宜峰 郭健民 王建华 范晖 |
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| 作者单位： | 南京师范大学
(张锡然，陈宜峰)，陕西省动物研究所
(郭健民，王建华)，陕西省动物研究所(范晖) |
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| 摘 要： | 西安地区黄胸鼠(Rattus flavipectus)的核型分析结果表明,染色体数目2n=42。常染色体由13对末端着丝粒染色体以及7对小的中着丝粒染色体组成。性染色体XY 是一对大小不等的末端着丝粒染色体。时染色体的 G—带,C—带和 Ag—带也做了观察分析,所得结果与 Yosida(1973)的文献资料相比较可以看出,西安地区黄胸鼠的核型可能是从亚洲型黑家鼠(Rattus rattus tanezumi)演化而来的。
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| 关 键 词： | 黄朐鼠 核型 染色体分带 核仁组织者区 |
Chromosome Study of Rattus flavipectus in Xi'an |
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| Zhang Xiran Chen Yifeng.Chromosome Study of Rattus flavipectus in Xi''''an[J].Journal of Nanjing Normal University(Natural Science Edition),1992(4). |
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| Authors: | Zhang Xiran Chen Yifeng |
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| Institution: | Zhang Xiran Chen Yifeng (Nanjing Normal University)Guo Jianmin Wang Jianhua Fan Hui (Shanxi Institute of Zoology) |
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| Abstract: | The chromosomes of buff-breasted rat(Rattus flavipectus).captured at houses of Xi'an citywere karyotyped.The rasults showed that chromosomal diploid number was 2n=42,containing 13pairs of acro-,7 pairs of smaller metacenteic and XY sex chromosomes(large acro-and smallest acro-chromosome,respectively).The patterns of G-bands,C-bands,and Ag-bands were described.In com-parison with Yosida's reports(1073,1980),it seems that the karyotype of buff-breasted rat may origi-nate from basic Rattus karyotype in Asian black rat(Rattus Tattus tanezumi). |
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| Keywords: | Rattus flavipectus karyotype G-bands C-bands NOR |
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