畜牧兽医学报 ›› 2014, Vol. 45 ›› Issue (3): 489-493.doi: 10.11843/j.issn.0366-6964.2014.03.021

• 研究简报 • 上一篇    下一篇

YWHAG基因CDS的克隆及其在梅山与杜洛克猪卵泡发育中的差异表达研究

刘丽娟,鲁慧文,杨飞,徐梦思,黄涛*,李大全   

  1. (石河子大学动物科技学院,石河子 832003)
  • 收稿日期:2013-11-02 出版日期:2014-03-23 发布日期:2014-03-23
  • 通讯作者: 黄涛(1978-),男,副教授,主要从事猪分子遗传育种研究,E-mail: taohuang100@sina.com
  • 作者简介:刘丽娟(1988-),女,甘肃静宁人,硕士生,主要从事猪分子遗传育种研究,E-mail:417662445@qq.com
  • 基金资助:

    国家自然科学基金项目(30901014;31060295)

CDS Cloning of Porcine YWHAG Gene and It’s mRNA Expression Difference between Meishan and Duroc Swine with Follicle Developing

LIU Li-juan,LU Hui-wen,YANG Fei,XU Meng-si,HUANG Tao*,LI Da-quan   

  1. (College of Animal Science and Technology,Shihezi University,Shihezi 832003, China)
  • Received:2013-11-02 Online:2014-03-23 Published:2014-03-23

摘要:

本研究旨在探讨YWHAG(Tyrosine 3-monooxygenase/tryptophan 5-monooxygenase activation protein,gamma polypeptide) 基因在猪卵泡发育中的表达规律及其与卵泡发育的关系。从猪卵泡组织中克隆YWHAG基因CDS(Coding region)区全序列,采用半定量RT-PCR和Real-time PCR方法检测YWHAG基因在不同组织中的表达谱信息,并进一步分析了该基因在梅山、杜洛克猪L、M2、M1、S各级别卵泡中的表达变化。结果显示:克隆得到了猪YWHAG基因780 bp编码区全序列,通过与人、小鼠、牛YWHAG基因CDS区BLAST比对,其同源性分别为97.72%、96.68%和98.57%。YWHAG基因在肌肉、肝、脂肪、肺、心、脾、肾、子宫、输卵管、小肠、胃、卵巢、垂体、下丘脑等组织中均有表达,尤其在脂肪、小肠和大脑中表达较高。YWHAG基因在不同直径卵泡中的表达量的趋势均为M1卵泡和L卵泡最高,M2卵泡次之,S卵泡最低,并且在M1卵泡和L卵泡中的表达量显著高于M2卵泡和S卵泡(P<0.05)。YWHAG基因在梅山猪各级别卵泡中的表达量均高于杜洛克猪(P<0.05),并且在梅山猪S和M2卵泡的表达量分别极显著高于杜洛克猪(P<0.01),而在M1卵泡及L卵泡中的表达量无显著差异;结果提示,YWHAG基因可能参与猪卵泡发育中的凋亡过程,从而引起梅山与杜洛克猪在排卵数方面存在差异。

Abstract:

To detect the expression pattern of YWHAG(Tyrosine 3-monooxygenase/tryptophan 5-monooxygenase activation protein,gamma polypeptide) gene in during porcine follicle development.The CDS(Coding sequence) of YWHAG gene was cloned from porcine follicular tissue.Semi-quantitative RT-PCR was used to analyze the tissue expression profiling of YWHAG genes,Furthermore the expression level of YWHAG in follicles with different diameter(L,M2,M1,S) from Duroc and Meishan were investigated by real-time fluorescence quantitative PCR.The results showed that:the length of CDS of porcine YWHAG was 780 bp,and it’s similarity with that of human,mouse,and cattle was 97.72%,96.68% and 98.57%,respectively.YWHAG mRNA was expressed in all tested tissues(Muscle,fat,heart,liver,spleen,lung,kidney,stomach,small intestine,ovarian,uterine,uterine horn,tubal,pituitary,corpus luteum,brain,the hypothalamus),and especially high in fat,intestine and brain.Both in Duroc and Meishan swine,the expression of YWHAG mRNA in M1 and L follicles were significantly higher than M2 and S follicles(P<0.05).Moreover,The expression in S and M2 follicles from Meishan were significantly higher than that from Duroc(P<0.01),while no significant difference in M1 and L follicle.In conclusion,YWHAG gene may be involved in the apoptosis of porcine follicular development process,resulting in differences of ovulation rate in swine.

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