Abstract:
BACKGROUND:Due to the predominant usage of short-read sequencing to date, most bacterial genome sequences reported in the last years remain at the draft level. This precludes certain types of analyses, such as the in-depth analysis of genome plasticity. RESULTS:Here we report the finalized genome sequence of the environmental strain Aeromonas salmonicida subsp. pectinolytica 34mel, for which only a draft genome with 253 contigs is currently available. Successful completion of the transposon-rich genome critically depended on the PacBio long read sequencing technology. Using finalized genome sequences of A. salmonicida subsp. pectinolytica and other Aeromonads, we report the detailed analysis of the transposon composition of these bacterial species. Mobilome evolution is exemplified by a complex transposon, which has shifted from pathogenicity-related to environmental-related gene content in A. salmonicida subsp. pectinolytica 34mel. CONCLUSION:Obtaining the complete, circular genome of A. salmonicida subsp. pectinolytica allowed us to perform an in-depth analysis of its mobilome. We demonstrate the mobilome-dependent evolution of this strain's genetic profile from pathogenic to environmental.
journal_name
BMC Genomicsjournal_title
BMC genomicsauthors
Pfeiffer F,Zamora-Lagos MA,Blettinger M,Yeroslaviz A,Dahl A,Gruber S,Habermann BHdoi
10.1186/s12864-017-4301-6subject
Has Abstractpub_date
2018-01-05 00:00:00pages
20issue
1issn
1471-2164pii
10.1186/s12864-017-4301-6journal_volume
19pub_type
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