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Comparative genomic analyses of the Taylorellae
Heidi Hauser1, Daniel C Richter, Andries van Tonder
1Wellcome Trust Sanger Institute, Hinxton, CB10 1SA, UK.
Veterinary Microbiology
|May 1, 2012
Summary
Genomic analysis reveals Contagious Equine Metritis (CEM) bacteria Taylorella equigenitalis strains are highly similar. Taylorella asinigenitalis shares genes but has low DNA identity, offering new insights into Taylorella biology.
Area of Science:
- Bacteriology
- Genomics
- Veterinary Infectious Diseases
Background:
- Contagious Equine Metritis (CEM) is a significant venereal disease impacting the thoroughbred industry.
- Taylorella equigenitalis causes CEM, but knowledge of Taylorella species biology remains limited.
- Understanding Taylorella species is crucial for disease control and prevention.
Purpose of the Study:
- To conduct comparative genomic analyses of Taylorella equigenitalis and Taylorella asinigenitalis.
- To identify genes potentially involved in infection and virulence.
- To enhance understanding of Taylorella species' evolutionary relationships and biology.
Main Methods:
- Whole genome sequencing of T. equigenitalis type strain NCTC11184.
- Draft genome sequencing of a second T. equigenitalis strain and a T. asinigenitalis strain.
- Comparative genomic analysis with a previously sequenced T. equigenitalis MCE9 strain.
Main Results:
- T. equigenitalis strains exhibit high similarity with minimal strain-specific DNA.
- Putative toxin and adhesin genes were identified in T. equigenitalis, potentially contributing to pathogenesis.
- T. asinigenitalis possesses a similar gene repertoire to T. equigenitalis but displays low DNA sequence identity.
Conclusions:
- Genomic data significantly advances the understanding of poorly characterized Taylorella bacteria.
- Comparative genomics highlights the genetic relatedness and differences between T. equigenitalis and T. asinigenitalis.
- This research provides a foundation for future studies on Taylorella pathogenesis and diagnostics.
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