Unique genomic sequences in a novel Mycobacterium avium subsp. hominissuis lineage enable fine scale transmission route tracing during pig movement
© 2023 The Authors..
Mycobacterium avium subsp. hominissuis (MAH) is one of the most prevalent mycobacteria causing non-tuberculous mycobacterial disease in humans and animals. Of note, MAH is a major cause of mycobacterial granulomatous mesenteric lymphadenitis outbreaks in pig populations. To determine the precise source of infection of MAH in a pig farm and to clarify the epidemiological relationship among pig, human and environmental MAH lineages, we collected 50 MAH isolates from pigs reared in Japan and determined draft genome sequences of 30 isolates. A variable number of tandem repeat analysis revealed that most pig MAH isolates in Japan were closely related to North American, European and Russian human isolates but not to those from East Asian human and their residential environments. Historical recombination analysis revealed that most pig isolates could be classified into SC2/4 and SC3, which contain MAH isolated from pig, European human and environmental isolates. Half of the isolates in SC2/4 had many recombination events with MAH lineages isolated from humans in East Asia. To our surprise, four isolates belonged to a new lineage (SC5) in the global MAH population. Members of SC5 had few footprints of inter-lineage recombination in the genome, and carried 80 unique genes, most of which were located on lineage specific-genomic islands. Using unique genetic features, we were able to trace the putative transmission route via their host pigs. Together, we clarify the possibility of species-specificity of MAH in addition to local adaptation. Our results highlight two transmission routes of MAH, one exposure on pig farms from the environment and the other via pig movement. Moreover, our study also warns that the evolution of MAH in pigs is influenced by MAH from patients and their residential environments, even if the MAH are genetically distinct.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:16 |
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| Enthalten in: |
One health (Amsterdam, Netherlands) - 16(2023) vom: 18. Juni, Seite 100559 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Komatsu, Tetsuya [VerfasserIn] |
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| Links: |
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| Themen: |
Draft genome sequences |
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| Anmerkungen: |
Date Revised 01.07.2023 published: Electronic-eCollection Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1016/j.onehlt.2023.100559 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM358645999 |
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| 245 | 1 | 0 | |a Unique genomic sequences in a novel Mycobacterium avium subsp. hominissuis lineage enable fine scale transmission route tracing during pig movement |
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| 520 | |a Mycobacterium avium subsp. hominissuis (MAH) is one of the most prevalent mycobacteria causing non-tuberculous mycobacterial disease in humans and animals. Of note, MAH is a major cause of mycobacterial granulomatous mesenteric lymphadenitis outbreaks in pig populations. To determine the precise source of infection of MAH in a pig farm and to clarify the epidemiological relationship among pig, human and environmental MAH lineages, we collected 50 MAH isolates from pigs reared in Japan and determined draft genome sequences of 30 isolates. A variable number of tandem repeat analysis revealed that most pig MAH isolates in Japan were closely related to North American, European and Russian human isolates but not to those from East Asian human and their residential environments. Historical recombination analysis revealed that most pig isolates could be classified into SC2/4 and SC3, which contain MAH isolated from pig, European human and environmental isolates. Half of the isolates in SC2/4 had many recombination events with MAH lineages isolated from humans in East Asia. To our surprise, four isolates belonged to a new lineage (SC5) in the global MAH population. Members of SC5 had few footprints of inter-lineage recombination in the genome, and carried 80 unique genes, most of which were located on lineage specific-genomic islands. Using unique genetic features, we were able to trace the putative transmission route via their host pigs. Together, we clarify the possibility of species-specificity of MAH in addition to local adaptation. Our results highlight two transmission routes of MAH, one exposure on pig farms from the environment and the other via pig movement. Moreover, our study also warns that the evolution of MAH in pigs is influenced by MAH from patients and their residential environments, even if the MAH are genetically distinct | ||
| 650 | 4 | |a Journal Article | |
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| 650 | 4 | |a Transmission route | |
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| 700 | 1 | |a Ohya, Kenji |e verfasserin |4 aut | |
| 700 | 1 | |a Ota, Atsushi |e verfasserin |4 aut | |
| 700 | 1 | |a Nishiuchi, Yukiko |e verfasserin |4 aut | |
| 700 | 1 | |a Yano, Hirokazu |e verfasserin |4 aut | |
| 700 | 1 | |a Matsuo, Kayoko |e verfasserin |4 aut | |
| 700 | 1 | |a Odoi, Justice Opare |e verfasserin |4 aut | |
| 700 | 1 | |a Suganuma, Shota |e verfasserin |4 aut | |
| 700 | 1 | |a Sawai, Kotaro |e verfasserin |4 aut | |
| 700 | 1 | |a Hasebe, Akemi |e verfasserin |4 aut | |
| 700 | 1 | |a Asai, Tetsuo |e verfasserin |4 aut | |
| 700 | 1 | |a Yanai, Tokuma |e verfasserin |4 aut | |
| 700 | 1 | |a Fukushi, Hideto |e verfasserin |4 aut | |
| 700 | 1 | |a Wada, Takayuki |e verfasserin |4 aut | |
| 700 | 1 | |a Yoshida, Shiomi |e verfasserin |4 aut | |
| 700 | 1 | |a Ito, Toshihiro |e verfasserin |4 aut | |
| 700 | 1 | |a Arikawa, Kentaro |e verfasserin |4 aut | |
| 700 | 1 | |a Kawai, Mikihiko |e verfasserin |4 aut | |
| 700 | 1 | |a Ato, Manabu |e verfasserin |4 aut | |
| 700 | 1 | |a Baughn, Anthony D |e verfasserin |4 aut | |
| 700 | 1 | |a Iwamoto, Tomotada |e verfasserin |4 aut | |
| 700 | 1 | |a Maruyama, Fumito |e verfasserin |4 aut | |
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