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Infection and Drug Resistance Volume 13, 2020 - Issue
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Original Research

A Novel Transposon, Tn6518, Mediated Transfer of mcr-3 Variant in ESBL-Producing Aeromonas veronii

Xiaoming Wang1 MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People’s Republic of China;2 Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agriculture University, Beijing, People’s Republic of China
,
Weishuai Zhai3 College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong, People’s Republic of China
,
Shaolin Wang2 Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agriculture University, Beijing, People’s Republic of ChinaORCID Iconhttps://orcid.org/0000-0003-0866-4584
ORCID Icon,
Zhangqi Shen2 Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agriculture University, Beijing, People’s Republic of China
,
Yang Wang2 Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agriculture University, Beijing, People’s Republic of China
&
Qidi Zhang3 College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong, People’s Republic of ChinaCorrespondence[email protected]
Pages 893-899 | Published online: 25 Mar 2020

Figures & data

Figure 1 Location of mcr-3.6 on the chromosome of Aeromonas veronii w55. (A) S1-PFGE and (B) the corresponding Southern hybridization using the mcr-3.6 probe. Lane M, XbaI-digested Salmonella enterica serovar Braenderup strain H9812 genomic DNA marker; lane w55, A. veronii strain w55 genomic DNA.

Figure 1 Location of mcr-3.6 on the chromosome of Aeromonas veronii w55. (A) S1-PFGE and (B) the corresponding Southern hybridization using the mcr-3.6 probe. Lane M, XbaI-digested Salmonella enterica serovar Braenderup strain H9812 genomic DNA marker; lane w55, A. veronii strain w55 genomic DNA.

Figure 2 Genetic organization of scaffolds containing mcr-3.6 obtained from Aeromonas veronii strain w55 in this study, and structural comparison with A. allosaccharophila IMT43045 (GenBank accession no. MF598076.1). The positions and orientations of the genes are indicated by arrows, with the direction of transcription shown by the arrowhead. Grey shading indicates >99% nucleotide sequence identity. The genetic structure of transposon Tn6518 is shown in circular form.

Figure 2 Genetic organization of scaffolds containing mcr-3.6 obtained from Aeromonas veronii strain w55 in this study, and structural comparison with A. allosaccharophila IMT43045 (GenBank accession no. MF598076.1). The positions and orientations of the genes are indicated by arrows, with the direction of transcription shown by the arrowhead. Grey shading indicates >99% nucleotide sequence identity. The genetic structure of transposon Tn6518 is shown in circular form.

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