畜牧兽医学报 ›› 2016, Vol. 47 ›› Issue (9): 1914-1923.doi: 10.11843/j.issn.0366-6964.2016.09.021

• 预防兽医 • 上一篇    下一篇

基于高通量测序的猪鞭虫雌、雄虫差异基因表达分析

周作勇1,邵骜骏1,徐婷婷2,陈家磊2,胡世君1*   

  1. (1.西南大学荣昌校区动物医学系,重庆 402460;2.西南大学动物科技学院,重庆 400715)
  • 收稿日期:2016-03-29 出版日期:2016-09-23 发布日期:2016-09-23
  • 通讯作者: 胡世君,男,副教授,E-mail:chhjj006@163.com
  • 作者简介:周作勇(1979-),男,四川冕宁人,博士,副教授,主要从事动物传染病与寄生虫病防治研究。E-mail:zzyxnny@163.com
  • 基金资助:

    中央高校基本科研业务费专项基金资助项目(XDJK2015C030);重庆市社会事业与民生保障科技创新专项(CSTC2015SHMSZX80020)

Differential Expression Analysis of Female and Male Trichuris suis by a High-throughput Transcriptome Sequencing Method

ZHOU Zuo-yong1,SHAO Ao-jun1,XU Ting-ting2,CHEN Jia-lei2,HU Shi-jun 1*   

  1. (1.Department of Veterinary Medicine,Rongchang Campus of Southwest University,Chongqing 402460,China;2.College of Animal Science and Technology,Southwest University,Chongqing 400715,China)
  • Received:2016-03-29 Online:2016-09-23 Published:2016-09-23

摘要:

 为了探明猪鞭虫(Trichuris suis)雌、雄虫的转录组差异,丰富T.suis转录组数据信息,利用Illumina Hiseq 2000对临床采集的T.suis雌、雄虫进行高通量测序,将组装得到的Unigenes在NR、GO、COG和KEGG数据库中比对注释,并进行差异表达基因分析。结果,T.suis 雌、雄虫分别获得59 657 854条和48 414 184条高质量测序数据,分别组装获得21 026个和28 886个Unigenes。注释到NR、GO、COG和KEGG数据库的雌虫Unigenes数量分别为11 700、2 287、1 650和9 690个,雄虫Unigenes数量分别为12 902、2 414、1 791和10 377个,在NR数据库比对显示84.90%以上信息均来源于猪鞭虫。T.suis 雌、雄虫共有4 320个差异表达基因。以雌虫为对照,雄虫中共有3 496个基因表达上调,有824个基因表达下调。共有906个差异表达基因获得160个KEGG通路富集,其中显著富集通路7个。在T.suis转录组中发现了许多重要基因的表达,包括与T.suis繁殖相关的主要精子蛋白、组蛋白H2A/H2B及卵黄蛋白原,与T.suis致病性、免疫及炎症调节相关的蛋白酶、丝氨酸蛋白酶抑制分子和半胱氨酸蛋白酶抑制分子,以及众多未知功能的基因。本研究揭示了T.suis雌、雄虫差异表达基因的数量,获得了这些差异表达基因的功能、分类和代谢通路注释,为丰富T.suis转录组信息,揭示鞭虫与宿主互作特点及抗鞭虫靶点药物研发奠定基础。

Abstract:

 To find transcriptome difference of female and male Trichuris suis,and to enrich pig whipworm transcriptome data,the transcriptomes were analyzed by Illumina Hiseq 2000 high-throughput RNA sequencing.All of the assembled Unigenes were annotated using BLAST search against NR,GO,COG and KEGG databases.The differentially expressed genes were enriched in gene ontology and KEGG pathway.The results showed that 21 026 and 28 886 unigenes were got from female and male T.suis transcriptomes which were assembled from 59 657 854 and 48 414 184 clean reads respectively.The annotated Unigenes of female T.suis to NR,GO,COG and KEGG databases were 11 700,2 287,1 650 and 9 690 respectively,while the data of male T.suis were 12 902,2 414,1 791 and 10 377.There were 4 320 differentially expressed genes found in female and male T.suis,and more than 84.90% of the information were derived from pig whipworm in NR database.Take female T.suis for reference,3 496 genes were up-regulated and 824 genes were down-regulated in male T.suis.There were 906 differentially expressed genes enriched in KEGG pathways,and 7 of them were significantly enriched.Many important genes associated with reproduction including Major sperm protein,Histone H2A/H2B and Vitellogenin,and genes related to pathogenisis,immunity and inflammatory regulation such as protease,Serpin and Cystatin were found in transcriptome of T.suis,in addition to these,there were many genes of unknown functions.This study revealed the number of differentially expressed genes in female and male T.suis,and obtained the function,classification and metabolic pathways of the differentially expressed genes,which enriched T.suis transcriptome information,and provide a solid basis for the study on T.suis-host interactions and developing anti-whipworm drugs.

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