Draft Genome Sequence of Escherichia marmotae E690, Isolated from Beef Cattle

Area of Science:

• Microbiology
• Genomics
• Veterinary Science

Background:

• Extended-spectrum beta-lactamases (ESBLs) are a growing public health concern.
• Antibiotic resistance in food-producing animals can potentially spread to humans.
• The diversity of Escherichia species in livestock is not fully understood.

Purpose of the Study:

• To report the draft genome sequence of an ESBL-producing Escherichia species from beef cattle.
• To identify the species of the isolated Escherichia strain.
• To characterize the antibiotic resistance genes present in the strain.

Main Methods:

• Isolation of Escherichia species from beef cattle rectal feces.
• Whole-genome sequencing and draft genome assembly.
• Bioinformatic analysis for species identification and antimicrobial resistance gene detection.

Main Results:

• A draft genome sequence of an ESBL-producing Escherichia strain was obtained.
• The strain was identified as belonging to the newly described species Escherichia marmotae.
• The genome analysis confirmed the presence of ESBL genes.

Conclusions:

• Escherichia marmotae is present in beef cattle in northern Spain.
• This finding highlights the potential for ESBL-carrying bacteria to circulate in livestock.
• Further research is needed to understand the prevalence and implications of Escherichia marmotae in animal agriculture.