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首个测序的亚种菌株M1601的全基因组分析。

Genome-Wide Analysis of the First Sequenced subsp. Strain M1601.

作者信息

Chen Shengli, Hao Huafang, Zhao Ping, Thiaucourt François, He Ying, Gao Pengcheng, Guo Han, Ji Wenheng, Wang Zhanhui, Lu Zhongxin, Chu Yuefeng, Liu Yongsheng

机构信息

State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, Gansu, People's Republic of China.

CIRAD, UMR CMAEE, F-34398 Montpellier, France.

出版信息

G3 (Bethesda). 2017 Sep 7;7(9):2899-2906. doi: 10.1534/g3.117.300085.

Abstract

subsp. (Mccp) is a common pathogen of goats that causes contagious caprine pleuropneumonia. We closed the gap and corrected rRNA operons in the draft genome of Mccp M1601: a strain isolated from an infected goat in a farm in Gansu, China. The genome size of M1601 is 1,016,707 bp with a GC content of 23.67%. We identified 915 genes (occupying 90.27% of the genome), of which 713 are protein-coding genes (excluding 163 pseudogenes). No genomic islands and complete insertion sequences were found in the genome. Putative determinants associated with the organism's virulence were analyzed, and 26 genes (including one adhesion protein gene, two capsule synthesis gene clusters, two lipoproteins, hemolysin A, ClpB, and proteins involved in pyruvate metabolism and cation transport) were potential virulence factors. In addition, two transporter systems (ATP-binding cassette [ABC] transporters and phosphotransferase) and two secretion systems (Sec and signal recognition particle [SRP] pathways) were observed in the Mccp genome. Genome synteny analysis reveals a good collinear relationship between M1601 and Mccp type strain F38. Phylogenetic analysis based on 11 single-copy core genes of 31 strains revealed good collinearity between M1601 and subsp. (Mcc) and close relationship among cluster strains. Our genome-wide analysis of Mccp M1601 provides helpful information on the pathogenic mechanisms and genetics of Mccp.

摘要

亚种(Mccp)是山羊的一种常见病原体,可引起山羊传染性胸膜肺炎。我们填补了Mccp M1601(从中国甘肃一个农场的感染山羊中分离出的菌株)基因组草图中的缺口并校正了rRNA操纵子。M1601的基因组大小为1,016,707 bp,GC含量为23.67%。我们鉴定出915个基因(占基因组的90.27%),其中713个是蛋白质编码基因(不包括163个假基因)。在基因组中未发现基因组岛和完整的插入序列。分析了与该生物体毒力相关的推定决定因素,26个基因(包括一个粘附蛋白基因、两个荚膜合成基因簇、两个脂蛋白、溶血素A、ClpB以及参与丙酮酸代谢和阳离子转运的蛋白质)是潜在的毒力因子。此外,在Mccp基因组中观察到两个转运系统(ATP结合盒[ABC]转运蛋白和磷酸转移酶)和两个分泌系统(Sec和信号识别颗粒[SRP]途径)。基因组共线性分析显示M1601与Mccp型菌株F38之间具有良好的共线性关系。基于31个菌株的11个单拷贝核心基因的系统发育分析显示M1601与亚种(Mcc)之间具有良好的共线性,且簇菌株之间关系密切。我们对Mccp M1601的全基因组分析为Mccp的致病机制和遗传学提供了有用信息。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9f34/5592918/42b674c3831c/2899f1.jpg

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