畜牧兽医学报 ›› 2014, Vol. 45 ›› Issue (10): 1600-1607.doi: 10.11843/j.issn.0366-6964.2014.10.004

• 遗传繁育 • 上一篇    下一篇

Slc22a18与Slc22a3的克隆及印迹表达分析

周洋1,焦明霞1,吕嘉伟1,朱江1,于淼2,孔庆然1*,刘忠华1*   

  1. (1.东北农业大学 生命科学学院,哈尔滨 150030; 2.哈尔滨职业技术学院,哈尔滨 150030)
  • 收稿日期:2013-11-14 出版日期:2014-10-23 发布日期:2014-10-23
  • 通讯作者: 刘忠华,教授,博士生导师,主要从事发育生物学研究,E-mail:liu086@yahoo.com;孔庆然,副教授,博士,主要从事发育生物学研究,E-mail:kqr721726@163.com
  • 作者简介:周洋(1987-),男,黑龙江人,硕士,主要从事发育生物学研究,E-mail:zh0uyang@yahoo.com
  • 基金资助:

    国家自然科学基金(31101035);黑龙江省杰出青年基金(JC200905)

The Cloning and Imprinting Analysis of Slc22a18 and Slc22a3 in Swine

ZHOU Yang1,JIAO Ming-xia1,LYU Jia-wei1,ZHU Jiang1,YU Miao2,KONG Qing-ran1*,LIU Zhong-hua1*   

  1. (1.College of Life Science,Northeast Agricultural University,Harbin 150030,China;2.Harbin Power Vocational Technology College,Harbin 150030,China)
  • Received:2013-11-14 Online:2014-10-23 Published:2014-10-23

摘要:

本试验通过鉴定候选印迹基因Slc22a18与Slc22a3,以丰富猪中已鉴定印迹基因的数量,为今后在猪中的印迹研究提供基础。本研究采用单核苷酸多态性(Single nucleotide polymorphism,SNP)直接测序法检测了猪Slc22a18与Slc22a3在16个组织器官中的印迹状态。首先,克隆得到657 bp的Slc22a18 cDNA序列及1 077 bp的Slc22a3 cDNA序列,然后进行SNP直接测序法检测。Slc22a18在1月龄仔猪的组织器官中为双等位基因表达,而在45 d胎盘中为母源等位基因表达。Slc22a3的表达具有母源偏好性。实时定量PCR显示,Slc22a18在各组织器官中表达水平差异很大,在肝、肾和小肠中表达水平显著高于其他各组织,Slc22a3在各组织器官中广泛表达。上述结果表明,Slc22a18与Slc22a3在猪不同组织器官中存在印迹多态性,是猪母源表达的印迹基因。

Abstract:

To enrich the number of imprinted genes and to provide a basis for future imprinting research in swine,the candidate imprinted genes Slc22a18 and Slc22a3 were identified.In this study,657 bp cDNA sequence of Slc22a18 and 1 077 bp cDNA sequence of Slc22a3 cDNA were obtained and their imprinting status were identified by using a single nucleotide polymorphisms-based sequencing method in 16 tissues.Imprinting analysis showed that Slc22a18 was biallelically expressed in all the tissues of 1-month-old piglet and maternally expressed in the 45 d placenta.And the expression pattern of Slc22a3 prefered to maternal allele.The expression level of Slc22a18 was significantly different among tissues and higher in the liver,kidney and small intestine.Slc22a3 was widely expressed in various tissues.The results indicated that imprinting status of Slc22a18 and Slc22a3 were polymorphic in different tissues,and Slc22a18 and Slc22a3 were maternal expressed genes in pigs.

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