畜牧兽医学报 ›› 2018, Vol. 49 ›› Issue (2): 300-309.doi: 10.11843/j.issn.0366-6964.2018.02.009

• 生物技术与繁殖 • 上一篇    下一篇

PDF2和ODF1转录组测序筛选牛卵泡发育相关基因

李鹏飞1, 孟金柱2, 郝庆玲1, 毕锡麟3, 王锴3, 朱芷葳1, 吕丽华3*   

  1. 1. 山西农业大学生命科学学院, 太谷 030801;
    2. 铜仁学院乌江学院, 铜仁 554300;
    3. 山西农业大学动物科技学院, 太谷 030801
  • 收稿日期:2017-06-29 出版日期:2018-02-23 发布日期:2018-02-23
  • 通讯作者: 吕丽华,E-mail:lihualvsxau@126.com
  • 作者简介:李鹏飞(1978-),男,山西偏关人,博士,副教授,主要从事动物生殖生理方面的研究,E-mail:adamlpf@126.com
  • 基金资助:

    国家自然科学基金(31402156);山西省回国留学人员科研资助项目(2014-重点5);山西省国际科技合作项目(201603D421006);山西省三晋学者和人才引进项目;山西农业大学创新基金项目(zdpy201403/201503);引进人才博士科研启动基金(2014ZZ04);青年拔尖创新人才支持计划(TYIT201403);山西省重点研发计划(一般)农业项目(201703D221020-1)

Screening and Analysing of Genes Associated with Follicular Development in Bovine ODF1 and PDF2 Transcriptome

LI Peng-fei1, MENG Jin-zhu2, HAO Qing-ling1, BI Xi-lin3, WANG Kai3, ZHU Zhi-wei1, LÜ Li-hua3*   

  1. 1. College of Life Science, Shanxi Agricultural University, Taigu 030801, China;
    2. Wujiang College, Tongren University, Tongren 554300, China;
    3. College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
  • Received:2017-06-29 Online:2018-02-23 Published:2018-02-23
  • Supported by:
     

摘要:

旨在筛选牛卵泡发育相关基因及其表达模式。本研究选取9头青年母牛,同期发情处理后,采集卵泡波中出现偏差前的小卵泡PDF2(The small follicle at onset of predeviation)和出现偏差后的最大卵泡ODF1(The largest follicle at onset of deviation),分离颗粒细胞(Granulesa cells,GCs),提取总RNA,并进行转录组测序;经牛RefSeq数据库搜索和差异表达基因筛选,进行GO (Gene ontology)分析;随机选择5个基因(MAPK13、CYP19A1、GREB1、SERPINE2、GSTA5)进行qRT-PCR表达量验证分析。结果表明:PDF2和ODF1转录组中共获得RPKM (The reads per kilobase per million reads)值≥0.5的表达基因15 413个,其中表达差异倍数(Fold change)≥2的差异表达基因共651个;对651个差异表达基因进行GO分析表明,参与生物过程(Biological process,BP)的基因占41.66%,分子功能(Molecular function,MF)占17.24%,细胞组分(Cellular component,CC)占41.10%;GO分析结合Genecards基因功能查询,共筛选出13个下调基因和17个上调基因与牛卵泡发育直接相关;CYP19A1、GREB1、SERPINE2在优势卵泡(Donminant follicles,DF)的表达量极显著高于从属卵泡(Subordinate follicle,SF)(P<0.01),MAPK13在SF表达量极显著高于DF (P<0.01),GSTA5在SF表达量显著高于DF (P<0.05)。5个基因差异表达趋势与转录组测序结果完全相符,也进一步证明了转录组测序结果的可信度,为深入探讨基因调控牛卵泡发育奠定了基础。

Abstract:

This study aimed to screen genes associated with bovine follicular development and investigate their expression patterns.Nine young cows were collected.The small follicle at onset of predeviation (PDF2) and the largest follicle at onset of deviation (ODF1) follicles were collected after estrus synchronization. The total RNA was extracted from separated granulosa cells for the transcriptome sequencing. The Gene Ontology analysis was carried out after searching the bovine Refseq database and screening differentially expressed genes. MAPK13,CYP19A1,GREB1,SERPINE2,GSTA5 genes were selected randomly for verification using qRT-PCR technology. Results suggested that 15 413 genes were obtained from PDF2 and ODF1 transcriptomes (RPKM value ≥ 0.5), of which 651 differentially expressed genes were selected (Fold change ≥ 2). GO assignments were used to classify the functions of the 651 genes, and which could be categorized into 3 main catrgories, biological process (41.66%), molecular function (17.24%), cellular component (41.10%). Combining with Genecards, 13 down-regulated and 17 up-regulated genes screened were associated with follicle development. qRT-PCR results indicated that the expression of CYP19A1, GREB1 and SERPINE2 in dominant follicles were very significantly greater than that in subordinate follicles (P<0.01). MAPK13 mRNA amounts in subordinate follicles were very significantly greater than that in dominant follicles (P<0.01). GSTA5 mRNA amounts in subordinate follicles were significantly greater than that in dominant follicles (P<0.05). qRT-PCR results were entirely consisted with transcriptome sequencing results, and further proved the reliability of the transcriptome sequencing, which provided a foundation for future investigation of the regulatory mechanisms involved in follicular development in cattle.

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