期刊文献+

三个家猪品种和rob易位群染色体分带多态性的比较 被引量:6

Comparative Study on Polymorphism of the Banding Chromosome Among Three Breeds of Domestic Pigs and Rob Colony Translocation
下载PDF
导出
摘要 对家猪不同品种及家系间的染色体组型、C-带、Ag-NORs多态性进行的研究表明:杜洛克猪、约克夏猪、长白猪体细胞染色体数2n=38,核型2n=10sm+12m+4st+12t,而13/17易位纳合子猪(36,rob.13/17)的体细胞染色体数2n=36,核型2n=10sm+12m+6st+8t;13/17易位杂合子猪(37,rob.13/17)的体细胞染色体数目为2n=37,核型为2n=10sm+12m+5st+10t。5种家猪的C-带在13~18号染色体上存在大、中、小三种类型,且呈多态性分布。杜洛克猪、约克夏猪、长白猪、13/17易位纳合子猪、13/17易位杂合子猪的Ag-NORs均数分别为2.05、2.062.00、1.99、1.98,说明Ag-NORs在品种、个体及细胞间具有多态性. The present experiment is carried out to make comparative stdy on polymorphism of chromosome Karyotypes, C-band and Ag-NORs of different breeds and strains in domestic Pigs. The results showed that the chromosome number of somatic cell in Duroc, Yorkshire and Landrace Pig Was 38and the karyotype was 2n =10sm+12m+4st+12t. But in heterozygous Rob 13 /17(37, rob. 13 /17) Pig, the chromosome number of somatic cell was 37 and the karyotype was 2n=10sm+12m+5st+10t, while in homozygous Rob 13 /17(36, rob. 13 /17) Pig, the somatic cell chromosome number was 36 and the karyotype was 2n = 10sm+12medst+8t. It was also showed that there were three C-band types in size on chromosome No. 13-18 showing polymorphism in three breeds and two strains of domestic Pigs. The average of Ag-NoRs in Duroc, yorkshire, Landrace, homozygous Rob. 13 /17 and heterozygous Rob.13/17 Pig was 2.05, 2.06, 2.00, 1.99 and 1.98, respectively. It is suggestod that Ag-NORs have polymorphism among strains, which can be used as a genetic index to analyse relationships among domestic animals with high reliability.
出处 《遗传》 CAS CSCD 北大核心 1999年第5期27-30,共4页 Hereditas(Beijing)
关键词 家猪 染色体 C-带 多态性 rob易位群 Domestic pig, Chromosome C-band Ag-NORs polymorphism
  • 相关文献

参考文献7

  • 1陈文元,王子淑.家猪(Sus scrofa domestica)体细胞染色体的研究[J].遗传,1979(5):6-10. 被引量:17
  • 2孙海源 李芳媛 等.快速简便的NOR染色法[J].遗传,1988,10(4):43-44.
  • 3王子淑.家猪品种间核仁组成区(NOR)的比较研究[J].遗传,1982,4(6):27-30.
  • 4孙海源,遗传,1988年,10卷,4期,43页
  • 5王子淑,人体及动物细胞遗传学实验技术,1987年,2-4,110-120,153-154页
  • 6王子淑,遗传,1982年,4卷,6期,27页
  • 7陈文元,遗传,1979年,1卷,5期,6页

共引文献16

同被引文献42

引证文献6

二级引证文献14

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部