›› 2007, Vol. 34 ›› Issue (6): 44-46.

• 遗传繁育 • 上一篇    下一篇

单精注射法生产转GFP基因猪胚胎的研究

苗向阳1, 方昌阁1,2,邵建军1,朱瑞良3, 任慧英1
  

  1. 1.中国农业科学院北京畜牧兽医研究所,北京 100094;2.中国农业大学农业生物技术国家重点实验室,北京 100094; 3.山东农业大学动物科技学院,泰安 271018
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-06-20 发布日期:2007-06-20

Production of Porcine Transgenic Embryos Expressing GFP by Intracytoplasmic Sperm Injection(ICSI)

MIAO Xiangyang1,FANG Changge1,2,SHAO Jianjun1,ZHU Ruiliang3,REN Huiying1
  

  1. 1.Institute of Animal Science,Chinese Academy of Agricultural Science,Beijing 100094,China; 2.The State Key Laboratory for AgroBiotechnology, China Agricultural University, Beijing 100094,China; 3.College of Animal Science and Technology, Shandong Agricultural University, Taian 271018, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-06-20 Published:2007-06-20

摘要: 卵胞质内单精子注射(ICSI)的出现为治疗人类男性不育提供了新的途径。作为一种家畜胚胎工程新技术,ICSI可以解决猪的多精子受精问题。本研究用冷冻/解冻的猪精子与GFP基因孵育后对猪IVM卵母细胞进行ICSI,通过对猪ICSI卵母细胞发育能力和基因表达效率的分析,初步研究以精子为载体的转基因与卵细胞质内单精注射相结合的技术(SMGT-ICSI)生产转基因猪胚胎的技术路线的可行性。用GFP基因转染的精子注射后化学激活的ICSI卵母细胞基因表达率显著高于电激活处理的ICSI卵母细胞的基因表达率。用精子头部注射的猪卵母细胞和用完整精子注射的猪卵母细胞总基因表达效率无显著差异(P>0.05)。结果表明,用冷冻/解冻后的猪精子或精子头部与外源DNA孵育后通过ICSI方法生产转基因胚胎是可行的。

关键词: 卵母细胞; 单精注射; 胚胎

Abstract: Intracytoplasmic sperm injection(ICSI), which is a new technique of embryo engineering of domestic animals, can solve the problem of porcine polyspermy. Porcine ICSI was conducted using repeatedly frozen/thawed intact sperm or sperm head which were incubated with GFP gene for 30 minutes.The expression rate of GFP gene in ICSI oocytes activated by CaCl2 was higher than that of ICSI oocytes activated by electrical pulse. The result showed that SMGT-ICSI procedure for the production of transgenic porcine embryos was feasible.

Key words: oocytes; ICSI; embryo

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