《河南师范大学学报(自然科学版)》2002年02期 加入收藏    获取最新 
 4种鱼中DFF基因的检测
 常重杰;杜启艳
   根据人类DFF基因的DNA序列 ,设计了一对引物 ,通过PCR扩增得到了该基因的一个片断 ,经地高辛标记作为探针对 4种鱼的基因组DNA(经过限制酶消化 )进行了Southern杂交检测 .结果表明 :在鲤鱼和鲫鱼中存在一个大小为 3.7Kb的杂交带 ;在泥鳅和大鳞副泥鳅中存在的杂交带为 4.5Kb ,说明DFF基因在进化过程中具有保守性 .本研究为鱼类DFF基因的克隆奠定了基础
【作者单位】:河南师范大学生命科学学院;河南师范大学生命科学学院 河南新乡;453002;河南新乡;453002
【关键词】:DFF基因;鲤鱼;鲫鱼;泥鳅;大鳞副泥鳅
【基金】:河南省自然科学基金项目 (编号 :9940 10 80 0 )
【分类号】:Q343
【DOI】:cnki:ISSN:1000-2367.0.2002-02-016
【正文快照】:
  在所有的动物细胞中存在着一个细胞自杀程序———细胞凋亡 .当该程序启动时细胞开始死亡 ,并呈现独特的形态变化 :细胞质和细胞核凝集形成凋亡体 .其中最显著的生化变化是染色质DNA的碎片化 .在细胞凋亡过程中 ,限制性内切酶首先把DNA切割成 5 0 - 30 0kb的大片段 ,接
 
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 The Detection of DFF Gene in Four Species of Fish
 CHANG Zhong jie;DU Qi yan (College of Life Sciences;Henan Normal University;Xinxiang;453002;China)
  A pair of primers were designed based on the sequence of human DFF gene, and were used to amplify the human genomic DNA. The PCR products were labeled with dig-UTP and used as probe to detect the homologous genes to DFF in four species of fish. The results showed that there were positive bands in the DNAs of Cyprinus carpio carpio and Carassius auratus auratus with the size of 3.7Kb respectively, and 4.5Kb in Misgurnus anguillicaudatus and Paramisgurnus dabrganus. Therefore, the DFF gene is conserved in the evolution of animals. The results of this study founded the cloning of DFF gene of fish.
【Keyword】:DFF gene;cyprinus carpio carpio;carassius auratus auratus;misgurnus anguillicaudatus;paramisgurnus dabrganus
 【参考文献】 共(6)篇 
 西文参考文献找到 6 条
 
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1常重杰,杜启艳; 4种鱼中DFF基因的检测 [J];河南师范大学学报(自然科学版); 2002年02期; 68-70