›› 2016, Vol. 43 ›› Issue (2): 319-325.doi: 10.16431/j.cnki.1671-7236.2016.02.005

• 生物技术 • 上一篇    下一篇

miR-383在牦牛、犏牛睾丸组织中的差异表达及功能预测

廖珂1,2, 柴志欣1,2, 张思源1,2, 钟金城1,2   

  1. 1. 西南民族大学, 动物遗传育种学国家民委—教育部重点实验室, 成都 610041;
    2. 西南民族大学青藏高原研究院, 成都 610041
  • 修回日期:2015-10-08 出版日期:2016-02-20 发布日期:2016-03-02
  • 通讯作者: 钟金城 E-mail:zhongjincheng518@126.com
  • 作者简介:廖珂(1991-),女,四川乐山人,硕士生,研究方向:分子遗传学与基因组学,E-mail:1518444267@163.com
  • 基金资助:
    西南民族大学研究生创新科研项目(CX2015SZ105)

Differential Expression and Function Prediction of miR-383 in Yak and Cattle-yak Testis

LIAO Ke1,2, CHAI Zhi-xin1,2, ZHANG Si-yuan1,2, ZHONG Jin-cheng1,2   

  1. 1. Key Laboratory of Animal Genetics & Breeding, State Ethnic Affairs Commission and Ministry of Education, Southwest University for Nationalities, Chengdu 610041, China;
    2. Institute of Qinghai-tibetan Plateau, Southwest University for Nationalities, Chengdu 610041, China
  • Revised:2015-10-08 Online:2016-02-20 Published:2016-03-02

摘要: 本研究旨在分析miR-383成熟体在雄性牦牛和犏牛F1代睾丸组织中的差异表达,以了解其在精子形成中的重要作用.以发育成熟的牦牛和犏牛睾丸组织为材料,利用实时荧光定量PCR方法检测miR-383成熟体在牦牛及犏牛睾丸组织中的差异表达情况;利用TargetScan和miRanda数据库获得miR-383的靶基因集合,通过David和Gene Ontology在线软件分析miR-383靶基因的生物学功能.实时荧光定量PCR结果显示miR-383成熟体在牦牛和犏牛F1代睾丸组织中表达显著差异(P<0.05),在牦牛睾丸组织中表达量较高,靶基因预测共获得131个靶基因,GO分析及KEGG信号通路分析得到miR-383靶基因功能,这些靶基因参与了细胞增殖、凋亡、核酸合成调控等过程.结合miR-383成熟体的表达差异和靶基因功能预测结果,miR-383可能参与生殖细胞的分化及精子形成调控,为miR-383在犏牛生殖细胞中的功能与调控机制研究提供了理论依据.

关键词: 牦牛; 犏牛; miR-383; 精子发生; 雄性不育; 生物信息学分析

Abstract: The aim of this study was to detect the differential expression of miR-383 in yak and cattle-yak testis,and explore the important roles of miR-383 in spermatogenesis.Using the testis tissue of mature yak and cattle-yak as experimental material,Real-time PCR was performed to detect the miR-383 expression.miR-383 targets were obtained using TargetScan and miRanda database,and biological functions of these target genes were predicted by David and Gene Ontology online softwares.The miR-383 had significantly differential expression in F1 testis tissue between yak and cattle-yak(P<0.05),and it had the highest expression level in yak testis tissues.131 target genes were obtained by target gene prediction which involved in cell proliferation,apoptosis,regulation of nucleic acid synthesis and other processes by GO analysis and KEGG pathway analysis.The results showed that miR-383 might participate in the regulation of germ cell differentiation and spermatogenesis,which would provide clues and theoretical basis for studying the function and regulation mechanism of miR-383 in cattle-yak germ cell.

Key words: yak; cattle-yak; miR-383; spermatogenesis; male sterility; bioinformatics analysis

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