| 摘要: |
| 对杜洛克、巴克夏、关中黑和八眉猪的Q-、G-和C-分带的多态性作了祥细的比较分析。发现Q-,G-分带在品种、个体及同源染色体间有多态性。随着染色体的伸长和带纹的进一步精细,多态性表现的愈多愈明显;C-分带的多态性在品种、个体、细胞及同源染色体间广泛存在,同源染色体间C-带多态性具品种特征和个体特征。此外,发现家猪染色体中存在“额外”G-带和“额外”浅染区现象。 |
| 关键词: 染色体,Q-、G-、C-分带,多态性,家猪 |
| DOI： |
| 分类号: |
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| Q-, G- AND C-BAND POLYMORPHISM IN SWINE ( Sus Scrofa Domestica ) |
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Liu Wansheng Lu Xingzhong Liu Xiaodun
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| Abstract: |
| The Q- ,G- and C-band polymorphisms of Duroc, Berkshire, Guanzhong Black and Bami were analysed in details in this paper. The results showed that the Q- and G-band polymorphism was found among the breeds, individuals, and homologous chromosomes. The longer chromosomes stretch and the more meticulous band patterns are, the more and the clearer polymorphic phenomenon. The C-band polymorphism existed extensively among the breeds, individuals, cells and homologous chromosomes, C-band polymorphisms of homologous chromosomes are of breed and individual characteristics. Moreover, We found that there exist "extra" G-bands and "extra" faint region in pig chromosomes. |
| Key words: Chromosomes, Q-, G- and C-banding, polymorphism,domestic pig |
