Whole genome sequences of nine Taylorella equigenitalis strains isolated in the Czech Republic between 1982–2021: Molecular dating suggests a common ancestor at the time of Roman Empire
2025

Genomes of Taylorella equigenitalis from the Czech Republic isolated between 1982–2021

Sample size: 33 publication 20 minutes Evidence: moderate

Author Information

Author(s): Hrala Matěj, Andrla Petr, Bosák Juraj, Fedrová Pavla, Mugutdinov Amir, Karpíšková Renata, Nedbalcová Kateřina, Raichová Jitka, Faldyna Martin, Hořín Petr, Šmajs David

Primary Institution: Masaryk University, Brno, Czech Republic

Hypothesis

The study aims to isolate contemporary strains of Taylorella equigenitalis, determine their genome sequences, evaluate their antibiotic resistance, and compare them with other strains.

Conclusion

The study revealed a recently emerged streptomycin resistance in Taylorella equigenitalis strains from Kladruber horses, emphasizing the need for antibiotic surveillance and alternative treatments.

Supporting Evidence

  • Taylorella equigenitalis is the causative agent of sexually transmitted contagious equine metritis.
  • Contemporary strains were found to be resistant to streptomycin, suggesting the recent emergence of this mutation.
  • The study determined nine complete whole genome sequences of T. equigenitalis strains.

Takeaway

Scientists studied horse bacteria to see how they changed over time and found that some of them became resistant to a common antibiotic.

Methodology

The study used whole-genome sequencing and antibiotic susceptibility testing on samples collected from Kladruber stallions.

Potential Biases

The absence of a randomized or systematic sampling approach could result in sampling bias potentially affecting the observed genetic diversity.

Limitations

The study had a limited number of genomes examined from Czech samples (n = 9) and a relatively short sampling period (42 years).

Participant Demographics

All samples were collected from Kladruber stallions in the Czech Republic.

Statistical Information

Confidence Interval

95% HPD: 4.8564×10−7–8.6941×10−7

Digital Object Identifier (DOI)

10.1371/journal.pone.0315946

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