| 摘要: |
| 利用外周血淋巴细胞培养法研究了4个绵羊品种的Ag-NORs,结果表明,绵羊Ag-NORs定位于1,2,3,4和未判定的2对小型染色体上。同羊、汉中绵羊、兰州大尾羊及罗姆尼羊的Ag-NORs均数分别为5.41±1.19,4.50±1.29,5.29±1.21和5.60±1.24,并且在品种间有显著或极显著差异(P<0.05,P<0.01) |
| 关键词: 染色体,Ag-NORs,绵羊 |
| DOI： |
| 分类号:S813 |
| 基金项目: |
|
| On chromosome Ag-NORs of several sheep breeds |
|
ZHANG Miao-tao WANG Qiu-fang
|
| Abstract: |
| Four sheep breeds were studied using peripheral blood lymphocytes cultures and Ag-NOR banding techniques.It is found that the Ag-NORs of sheep were located at 6 pairs of chromosomes.The Ag-NORs numbers of cells in breeds of Tongyang,Hanzhong Sheep,Lanzhou Daweiyang and Nomney were 5.41±1.19, 4.50±1.29, 5.29±1.21 and 5.60±1.24, respectively.The Ag-NORs numbers between the 4 breeds had significant differences (P<0.05,P<0.01).The results indicated that there was a very close tie of blood between Tongyang and Lanzhou Daweiyang. |
| Key words: chromosome,Ag-NORs,sheep |
