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Updated: Jan 7, 2026
08:03
Heuristic Mining of Hierarchical Genotypes and Accessory Genome Loci in Bacterial Populations
Published on: December 7, 2021
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Global emergence and evolution of Staphylococcus aureus clonal complex 59
Shuo Jiang1, Peng Gao2, Ping Shen3
1Department of Microbiology, University of Hong Kong, Hong Kong, China.
Msystems
|December 31, 2025
Summary
Staphylococcus aureus clonal complex 59 (CC59) strains show distinct global lineages originating from the USA, Australia, and China. Understanding CC59 evolution aids in developing new therapies against this public health threat.
Area of Science:
- Microbiology
- Genomics
- Evolutionary Biology
Background:
- Staphylococcus aureus clonal complex 59 (CC59) is a significant public health concern in Asia.
- Mechanisms of CC59 host adaptation and global success are not well understood.
Purpose of the Study:
- To analyze the genomic population structure and evolutionary history of CC59.
- To understand CC59 adaptation to hosts and its worldwide evolutionary success.
Main Methods:
- Comprehensive genomic analysis of 3,994 global CC59 isolates.
- Phylogenetic analysis and metadata integration.
- Functional characterization of virulence factors.
Main Results:
- Identified three distinct CC59 lineages with region-specific distributions (USA, Australia, China).
- CC59 clones in Taiwan diverged from mainland China strains around the 1940s-1960s.
- Respiratory colonization acts as a dissemination hub for CC59, especially for bloodstream infections (BSI).
- Enrichment of Clf-Sdr proteins in human isolates, particularly in BSI cases, with impaired biofilm formation in knockout strains.
Conclusions:
- Established an evolutionary framework for CC59 surveillance.
- Highlighted Clf-Sdr proteins as potential targets for anti-virulence therapeutics.
- CC59 lineages evolved unique routes, adapting to diverse environments.
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