›› 2007, Vol. 34 ›› Issue (4): 72-75.

• 遗传繁育 • 上一篇    下一篇

猪单条13/17罗伯逊易位染色体的显微分离与LA-PCR扩增

耿克祥1,闫守庆1,李冰1,孙金海1,2
  

  1. 1.吉林大学畜牧兽医学院,长春 130062;2.莱阳农学院青岛校区动物科技学院,青岛 266109
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-04-20 发布日期:2007-04-20

Microdissection and LA-PCR Amplification of Swine Single 13/17 Robertsonian Translocation Chromosome

GENG Kexiang1,YAN Shouqing1, LI Bing1,SUN Jinhai1,2
  

  1. 1.College of Animal Science and Veterinary Medicine,Jilin University,Changchun 130062,China; 2.College of Animal Science and Technology, Laiyang Agricultural University,Qingdao 266109,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-04-20 Published:2007-04-20

摘要: 以13/17罗伯逊易位纯合子猪[2n=36,XY或XX,rob(13;17)]为试验材料,制备其有丝分裂中期染色体,利用显微分离技术对13/17罗伯逊易位染色体进行分离,并将单条染色体进行LA-PCR扩增,其扩增片段大小主要在200~2800 bp;对LA-PCR扩增产物用猪13、17号染色体近着丝点微卫星标记SWR1941和SWR1120与Southern杂交2种方法进行鉴定,结果表明LA-PCR产物来源于13/17罗伯逊易位染色体。该方法的成功建立为进一步从分子水平上研究家猪13/17罗伯逊易位所引起的表型效应的遗传机制以及筛选猪13和17号染色体上新的分子遗传标记奠定了基础。

关键词: 猪; 罗伯逊易位; 显微分离; LA-PCR; 微卫星

Abstract: The homozygotes of 13/17 Robertsonian translocation swine [2n=36,XY or XX,rob(13;17)] metaphase spreads were prepared from 3d culture of ConA-stimulated peripheral blood lymphocytes.The single 13/17 Robertsonian translocation chromosome was microdissected,and then amplified by the Linkeradaptor polymerase chain reaction (LA-PCR).After two rounds of PCR amplification ,smear DNA fragments ranging from 200~2800 bp were acquired. Microsatellite analyses (SWR1941 and SWR1120)and Southern Bloting confirmed that the LA-PCR production came from 13/17 Robertsonian translocation chromosome.The research will be useful for intensive molecular linkage map construction of chromosome 13 and 17, and the isolation of important genes located on chromosome 13 and 17.

Key words: swine; robertsonian translocation; microdissection; LA-PCR; microsatellite 

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