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Genome-Wide Analysis of Mycoplasma dispar Provides Insights into Putative Virulence Factors and Phylogenetic Relationships

机译:全基因支原体的全基因组分析提供了对推定毒力因子和系统发生关系的见解。

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摘要

Mycoplasma dispar is an important pathogen involved in bovine respiratory disease, which causes huge economic losses worldwide. Our knowledge regarding the genomics, pathogenic mechanisms, and genetics of M. dispar is rather limited. In this study, the complete genome of M. dispar GS01 strain was sequenced using PacBio SMRT technology and first genome-wide analyzed. M. dispar GS01 has a single circular chromosome of 1,065,810 bp encoding 825 predicted proteins. Twenty-three potential virulence genes and two pathogenicity islands were identified in M. dispar. This pathogen was cytopathogenic, could form prolific biofilms, and could produce a large amount of H2O2. Methylation analysis revealed adenine and cytosine methylation across the genome and 13 distinct nucleotide motifs. Comparative analysis showed a high collinearity relationship between M. dispar GS01 and type strain ATCC 27140. Phylogenetic analysis demonstrated that M. dispar is genetically close to M. flocculare and M. hyopneumoniae. The data presented in this study will aid further study on the pathogenic mechanisms and evolution of M. dispar.
机译:Dispar支原体是涉及牛呼吸道疾病的重要病原体,在世界范围内造成巨大的经济损失。我们对Dispar的基因组学,致病机制和遗传学的了解非常有限。在这项研究中,使用PacBio SMRT技术对Dispar GS01菌株的完整基因组进行了测序,并首次对全基因组进行了分析。 M. dispar GS01具有1,065,810 bp的单个环状染色体,编码825个预测蛋白质。在Dispar M.dispar中鉴定出23个潜在的毒力基因和两个致病岛。该病原体具有细胞致病性,可形成大量生物膜,并可产生大量H2O2。甲基化分析揭示了整个基因组中的腺嘌呤和胞嘧啶甲基化以及13个不同的核苷酸基序。对比分析表明,Dispar GS01与类型菌株ATCC 27140之间存在较高的共线性关系。系统发育分析表明,dispar遗传上接近絮状杆菌和猪肺炎支原体。这项研究中提供的数据将有助于进一步研究Dispar分支杆菌的致病机理和进化。

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