Complete genome sequence of Brachyspira intermedia reveals unique genomic features in Brachyspira species and phage-mediated horizontal gene transfer
2011

Genome Sequence of Brachyspira intermedia

publication Evidence: moderate

Author Information

Author(s): Håfström Therese, Jansson Désirée S, Segerman Bo

Primary Institution: National Veterinary Institute (SVA)

Hypothesis

The study investigates the unique genomic features of Brachyspira intermedia and the role of phage-mediated horizontal gene transfer.

Conclusion

Brachyspira intermedia has a diverse accessory gene pool influenced by horizontal gene transfer and reductive genome evolution.

Supporting Evidence

  • Brachyspira intermedia has the largest number of unique genes among the studied Brachyspira species.
  • Horizontal gene transfer events can occur across species and genus boundaries.
  • Bacteriophages play a significant role in the gene transfer process among Brachyspira species.

Takeaway

This study looks at the DNA of a bacteria called Brachyspira intermedia, which can affect pigs and chickens, and shows how it can share genes with other bacteria through tiny viruses.

Methodology

The genome of Brachyspira intermedia was sequenced and analyzed for unique and shared genes compared to other Brachyspira species.

Limitations

The study is limited by the availability of only a single genome sequence for each species, which restricts the analysis of horizontal gene transfer events.

Digital Object Identifier (DOI)

10.1186/1471-2164-12-395

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