# Chromosomal and extrachromosomal replicons of a multidrug-resistant zoonotic Staphylococcus ureilyticus strain RSM-JSascm isolated from cow milk in Western Uganda, sub-Saharan Africa

**Authors:** Reuben S. Maghembe, Deogratius Mark, Abdalah Makaranga, Samweli Bahati, Jackim Nabona, Maximilian A. K. Magulye, AbdulGaniy. B Agbaje, Claus Thomas, Chinyere Nkemjika Anyanwu

PMC · DOI: 10.1128/mra.00137-25 · 2025-06-09

## TL;DR

This paper reports the genome of a multidrug-resistant Staphylococcus ureilyticus strain from cow milk in Uganda, revealing its chromosomal and plasmid structure and resistance genes.

## Contribution

The study provides the first detailed genomic analysis of a multidrug-resistant Staphylococcus ureilyticus isolate from sub-Saharan Africa.

## Key findings

- The isolate's chromosome contains 2,534 coding sequences and multiple RNA genes.
- Three plasmids were identified, carrying antimicrobial resistance genes.
- CRISPR arrays were found in the chromosome, suggesting potential for adaptive immunity.

## Abstract

Staphylococcus ureilyticus is a less-studied pathogen with zoonotic and antimicrobial resistance (AMR) potential. We sequenced a bovine isolate and recovered four replicons, a chromosome with 2,534 coding sequences (CDS), 51 transfer RNAs (tRNA), four ribosomal RNA (rRNA) genes, and two CRISPR arrays, along with three plasmids, harboring AMR genes.

## Linked entities

- **Species:** Staphylococcus ureilyticus (taxon 94138)

## Full-text entities

- **Species:** Bos taurus (bovine, species) [taxon 9913]

## Figures

1 figure with captions in the complete paper: https://tomesphere.com/paper/PMC12243539/full.md

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Source: https://tomesphere.com/paper/PMC12243539