生物技术通报 ›› 2024, Vol. 40 ›› Issue (7): 323-334.doi: 10.13560/j.cnki.biotech.bull.1985.2024-0076

• 研究报告 • 上一篇    下一篇

绵羊肺炎支原体GH3-3株全基因组测序及生物信息学分析

田彤彤1,2(), 葛家振1, 高鹏程1, 李学瑞1, 宋国栋1, 郑福英1(), 储岳峰1,2()   

  1. 1.中国农业科学院兰州兽医研究所 兰州大学动物医学与生物安全学院 动物疫病防控全国重点实验室,兰州 730000
    2.新疆农业大学动物医学学院,乌鲁木齐 830052
  • 收稿日期:2024-01-17 出版日期:2024-07-26 发布日期:2024-07-30
  • 通讯作者: 郑福英,女,博士,研究员,研究方向:草食动物细菌病防控技术;E-mail: zhengfuying@caas.cn
    储岳峰,男,博士,研究员,研究方向:草食动物细菌病防控技术及其基础研究;E-mail: chuyuefeng@caas.cn
  • 作者简介:田彤彤,女,硕士,研究方向:预防兽医学;E-mail: t1123859519@163.com
  • 基金资助:
    国家重点研发计划(2022YFD1800704);中国农业科学院兰州兽医研究所“元亨人才”计划项目(所级青年英才培育项目)(NKLS2020-119);甘肃省科技重大专项课题(23ZDNA007)

Whole Genome Sequencing and Bioinformatics Analysis of Mycoplasma ovipneumoniae GH3-3 Strain

TIAN Tong-tong1,2(), GE Jia-zhen1, GAO Peng-cheng1, LI Xue-rui1, SONG Guo-dong1, ZHENG Fu-ying1(), CHU Yue-feng1,2()   

  1. 1. State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730000
    2. College of Veterinary Medicine,Xinjiang Agricultural University,Urumqi 830052
  • Received:2024-01-17 Published:2024-07-26 Online:2024-07-30

摘要:

【目的】 全面了解绵羊肺炎支原体GH3-3株的基因序列,研究其潜在的致病机制及其复制、转录、翻译过程的调控机制。【方法】 采用体外培养,利用细菌基因组DNA提取试剂盒提取绵羊肺炎支原体GH3-3株基因组DNA,进行全基因组测序。【结果】 绵羊肺炎支原体GH3-3株基因组大小为1 060 772 bp,GC含量为29.66%,基因组组分分析后发现,GH3-3株的基因组含有730个编码基因,总长度为914 379 bp,平均长度为1 252.57 bp,占基因组全长的86.2%。串联重复序列共149个,总长为20 926 bp,占基因组全长的1.97%。微卫星DNA序列102个,tRNA 30个,rRNA 3个。在NR、SwissProt、GOG、KEGG、GO、CARD、CAZy、PHI、TCDB、RMS数据库中,分别有719、459、473、394、449、33、5、180、113、59个基因被注释;在VFDB数据库中,共注释到了76个毒力因子相关的基因。将基因组序列提交至NCBI网站,获得登录号为:PRJNA1051969。【结论】 获得了绵羊肺炎支原体GH3-3株完整的基因组信息,预测和注释了其基因的功能,明确了GH3-3株以及与国内外其他绵羊肺炎支原体菌株之间的遗传进化关系。

关键词: 绵羊肺炎支原体, GH3-3株, 全基因组测序, 毒力因子, 耐药基因

Abstract:

【Objective】 This study is aimed to decode the genomic sequence of Mycoplasma ovipneumoniae strain GH3-3, to investigate its pathogenic potential and to elucidate the regulatory mechanisms of its replication, transcription, and translation. 【Method】 M. ovipneumoniae GH3-3 strain was cultured in vitro. When it reached the late logarithmic stage of growth, the genomic DNA of M. ovipneumoniae GH3-3 strain was extracted with bacterial genomic DNA extraction kit and sent for whole genome sequencing and commentary. 【Result】 The genome size of GH3-3 strains of M. ovipneumoniae was 1 060 772 bp, and the GC content was 29.66%. The genome component analysis showed that the genome of GH3-3 strain contained 730 coding genes, with a total length of 914 379 bp and an average length of 1 252.57 bp, accounting for 86.2% of the total genome length. There were 149 tandem repeats with a total length of 20 926 bp, accounting for 1.97% of the total length of the genome. There were 102 microsatellite DNA sequences, 30 tRNA sequences, and 3 rRNA sequences. The 719, 459, 473, 394, 449, 33, 5, 180, 113 and 59 genes were annotated in NR, SwissProt, GOG, KEGG, GO, CARD, CAZy, PHI, TCDB, and RMS databases, respectively. A total of 76 virulence factor-related genes were annotated. The genome sequence was submitted to the NCBI website with the login number: PRJNA1051969. 【Conclusion】 The complete genome information of M. ovipneumoniae GH3-3 strain was acquired, and the gene function was predicted and annotated. Furthermore, the genetic and evolutionary relationships between GH3-3 strain and other strains of M. ovipneumoniae were elucidated globally.

Key words: Mycoplasma ovipneumoniae, GH3-3 strain, whole genome sequencing(WGS), virulence factor, drug-resistant gene