| 鲇鱼和黄颡鱼染色体高分辨G-带带型研究 |
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| 引用本文： | 刘彦,刘凌云.鲇鱼和黄颡鱼染色体高分辨G-带带型研究[J].北京师范大学学报(自然科学版),1987(3). |
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| 作者姓名： | 刘彦 刘凌云 |
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| 作者单位： | 北京师范大学生物系，北京师范大学生物系 |
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| 摘 要： | 本文用鱼类染色体高分辨G-显带方法首次对鲇鱼和黄颡鱼染色体高分辨G-带核型和带型进行了研究.两种鱼的核型结果在分组式、随体和次缢痕位置等方面均与前人有较大的不同.通过带型分析,发现了异型的性染色体(暂定为XX-XY型)以及具有带纹结构的巨大随体,并对它们进行了讨论.
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| 关 键 词： | 鲇鱼 黄颡 G-带 |
STUDIES ON THE CHROMOSOME HIGH RESOLUTION G-BANDING PATTERNS IN SILURUS ASOTUS AND PSEUDOBAGEUS FULVIDRACO |
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| Liu Yan Liu Lingyun.STUDIES ON THE CHROMOSOME HIGH RESOLUTION G-BANDING PATTERNS IN SILURUS ASOTUS AND PSEUDOBAGEUS FULVIDRACO[J].Journal of Beijing Normal University(Natural Science),1987(3). |
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| Authors: | Liu Yan Liu Lingyun |
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| Institution: | Department of Biology |
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| Abstract: | This paper presents the high resolution G-banding patterns of culture lym- phocytes in S. asotus and P.fulvidraco by fish high resolution G-band tech- nique. The results are different from other authors' in some respects. In both fishes, sex chromosomes (XX-XY) are morphologically distinguishable and linear satellite are found. In S. asotus, secondary constriction are found and the satellite of m_1 chromosome revealed 11 bands. The G-banding karyoty- pes, the sex chromosomes and the satellite are discussed. |
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| Keywords: | Silurus asotus Pseudobageus fulvidraco G-banding |
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