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猪源 质粒介导的 基因的首次报道。

First Report of the Plasmid-mediated Gene in from Pigs.

机构信息

MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China.

出版信息

Genes (Basel). 2021 Oct 23;12(11):1684. doi: 10.3390/genes12111684.

Abstract

Plasmid-mediated fosfomycin determinants is a global public health concern due to the increasing dissemination of fosfomycin resistance and limited clinical treatment options. Information about the fosfomycin resistant and molecular genetic among spp. is still lacking. In this study, we found the first plasmid-medieted in from pigs, and all the fosfomycin resistant spp. (FRE) isolates were multi-drug resistant. S1-PFGE, Southern blot and conjugation experiments indicated that the gene located on ~54.7 kb transferable plasmids Relative competition assay confirmed that the carrying plasmid impaired fitness in recipient JH2-2. Illumina and the MinION sequencing data revealed that both ES-1 and ES-2 isolates belonged to novel ST (ST964), and had 71 SNPs difference. WGS showed that the genetic environments of were diverse among different species, and the linezolid resistance gene was found in the -carrying strains. To summarize, for the first time, we reported plasmid-mediated in from pigs. And, the co-occurrence of and pose a serious threat to public health.

摘要

由于磷霉素耐药性的不断传播和临床治疗选择的有限,质粒介导的磷霉素决定因子引起了全球公共卫生关注。关于 spp. 的磷霉素耐药性和分子遗传学信息仍然缺乏。在这项研究中,我们在猪中发现了第一个质粒介导的 ,所有的磷霉素耐药 spp.(FRE)分离株均为多药耐药。S1-PFGE、Southern blot 和接合实验表明, 基因位于可转移质粒上~54.7kb。相对竞争实验证实,携带质粒会损害受体 JH2-2 的适应性。Illumina 和 MinION 测序数据表明,ES-1 和 ES-2 分离株均属于新型 ST(ST964),有 71 个 SNP 差异。WGS 表明,不同物种之间的 基因环境多样,并且在携带菌株中发现了利奈唑胺耐药基因 。总之,我们首次报道了来自猪的质粒介导的 。并且, 和 的共存对公共卫生构成了严重威胁。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/19a2/8624268/a62f86fd59c1/genes-12-01684-g001.jpg

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