Type 1, 2, and 1/2-Hybrid IncC Plasmids From China
A collection of 11 IncC plasmids from China were fully sequenced herein and compared with reference plasmids pR148 and pR55. These 13 plasmids could be assigned into three different subgroups: type 1, type 2, and type 1/2 hybrid. Type 1/2-hybrid plasmids most likely emerged from homologous recombina...
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Published in | Frontiers in microbiology Vol. 10; p. 2508 |
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Main Authors | , , , , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Frontiers Media S.A
15.11.2019
|
Subjects | |
Online Access | Get full text |
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Summary: | A collection of 11 IncC plasmids from China were fully sequenced herein and compared with reference plasmids pR148 and pR55. These 13 plasmids could be assigned into three different subgroups: type 1, type 2, and type 1/2 hybrid. Type 1/2-hybrid plasmids most likely emerged from homologous recombination between type 1 and type 2 plasmids. Different IncC plasmids had evolved to acquire quite different profiles of accessory modules and thus different collections of resistance genes. The accessory resistance modules included not only the
bla
CMY
-carrying region, the ARI-A island, and the ARI-B island, but also various additional kinds of resistance islands such as the
bla
CTX–M
-carrying regions and the MDR regions. Insertion of accessory modules was sometimes accompanied by deletion, inversion, and translocation of surrounding backbone regions. pR148 and pR55 were confirmed to have the most complete backbones for type 1 and type 2, respectively. This was the first report of a
bla
IMP–
8
-carrying IncC plasmid, and that of three novel mobile elements: a Tn
1696
-derived unit transposon Tn
6395
, a class 2 integron In2-76, and an insertion sequence IS
Ecl10
. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 These authors have contributed equally to this work Reviewed by: Christopher John Harmer, The University of Sydney, Australia; Ibrahim Bitar, Charles University, Czechia Edited by: Costas C. Papagiannitsis, University of Thessaly, Greece This article was submitted to Antimicrobials, Resistance and Chemotherapy, a section of the journal Frontiers in Microbiology |
ISSN: | 1664-302X 1664-302X |
DOI: | 10.3389/fmicb.2019.02508 |