实验动物科学 ›› 2017, Vol. 34 ›› Issue (02): 7-10.

• 研究 论著 • 上一篇    下一篇

Pumilio1 /Pumilio2 双基因条件性敲除小鼠模型的建立及基因型鉴定

  

  1. 南京医科大学生殖医学国家重点实验室
  • 出版日期:2017-04-29 发布日期:2017-07-05
  • 基金资助:

    <p>国家重点基础研究发展( 973) 计划( No. 2013CB945201) ; 国家自然科学基金( No. 81270737)</p>

Establishment and Genotyping of Pumilio1 and Pumilio2 Double Conditional Knockout Mouse Strain

  • Online:2017-04-29 Published:2017-07-05

摘要: 摘要: 目的 建立及鉴定 Pumilio1 /Pumilio2( Pum1 和 Pum2) 双基因条件性敲除的小鼠模型,为进一步研究 PUF 家族在哺乳动物精子发生中的生物学功能奠定基础。方法 将构建的 Pum1 条件性敲除和 Pum2 条件性敲除的两个品系小鼠进行交配并繁殖,最终繁殖成功的子代小仔 Pum1 和 Pum2 两个基因均为纯合子。对子代以剪趾方式进行编号,提取子代小鼠脚趾或鼠尾基因组 DNA,用 PCR 法和琼脂糖凝胶电泳鉴定基因型。结果 Pum1 和 Pum2 双基因条件性敲除的小鼠模型繁殖成功,同时获得更多 PUF 家族双基因条件性敲除的小鼠。结论 成功建立了 Pum1 和 Pum2 双基因条件性敲除的小鼠模型; 正确的交配繁殖策略和鉴定方法是获得 PUF 家族双基因条件性敲除小鼠的有效途径。

关键词: <, p>, Pum1, Pum2, 条件性敲除, 小鼠, 基因型鉴定<, /p>

Abstract: Abstract: Objective To establish and genotype a Pumilio1 ( Pum1) and Pumilio2 ( Pum2) double conditional knockout ( dCKO ) mice, in order to further study the biological function of PUF family in mammalian spermatogenesis. Method Homozygtes of dCKO offspring were produced from crossbreeding of Pum1 conditional knockout ( CKO) mice and Pum2 CKO mice. The pups were identified using toe-marking system at postnatal day 10 ( P10) ,and weaned at P21. Genomic DNA was extracted,and genotyping was performed using PCR,agarose gel electrophoresis and gel-imaging. Result Pum1 and Pum2 dCKO mice were obtained and reproduced normally. PCR products showed correct size of each allele as expected. Conclusion Pum1 and Pum2 dCKO mice are established successfully,providing an useful conditional knockout animal model to study roles of PUF family at different stages and different cell types for spermatogenesis as well as for any other physiological process.

Key words: <p>Pum1, Pum2, conditional knockout, mice, genotyping</p>

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