畜牧兽医学报 ›› 2009, Vol. 40 ›› Issue (6): 939-943.

• 研究简报 • 上一篇    下一篇

δ差异显示法筛选仔猪ETEC F4ad受体相关基因

蒋隽, 施启顺, 刘鑫, 马海明, 贺长青,柳小春*

  

  1. 湖南农业大学动物科技学院,长沙 410128
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-06-26 发布日期:2009-06-26
  • 通讯作者: 柳小春

Screening Genes Related to Piglet ETEC F4ad Receptor with δDDRTPCR Method

JIANG Juan, SHI Qishun, LIU Xin,MA Haiming, HE Changqing, LIU Xiaochun*   

  1. College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-06-26 Published:2009-06-26
  • Contact: LIU Xiaochun

摘要: 初生仔猪泻痢的病原菌主要是肠毒素大肠杆菌(ETEC)F4,仔猪小肠上皮细胞有无F4受体对于仔猪抗病性具有重要意义。本试验采用δ差异显示法筛选仔猪F4ad受体相关基因。将获得的8条ESTs通过GenBank进行序列同源比对,发现其中1条与人糖基磷脂酰肌醇锚1(GPI 1 ) 基因有91%同源性。表明该基因可作为F4ad受体候选基因进行进一步研究。

关键词: 肠毒素大肠杆菌, F4ad受体, δ差异显示, 糖基磷脂酰肌醇锚 1, 仔猪

Abstract: Enterotoxigenic Escherichia coli (ETEC) F4 was one of the most serious pathogenic bacteria inducing piglet diarrhea, ETEC F4 receptor in small intestine epithelium cells is of great importance for piglet′s diseaseresistance breeding. Differential display reverse transcription(DDRT) PCR method was used to screen genes related to piglet ETEC F4 receptor in this study, 8 ESTs were compared with GenBank. The result showed that one of them had 91% homologous to human glycosylphosphatidylinositol anchlor 1(GPI 1), which indicated that the GPI 1 gene might be the candidate gene of F4ad receptor.

Key words: ETEC, F4ad receptor, δ DDRTPCR, GPI 1, piglet