Core Genome Multi-locus Sequence Typing Analyses of Leptospira spp. Using the Bacterial Isolate Genome Sequence...

Area of Science:

• Microbiology
• Genomics
• Epidemiology

Background:

• Whole-genome sequencing (WGS) enables high-resolution typing of bacterial pathogens.
• Core genome multi-locus sequence typing (cgMLST) schemes are crucial for reproducible bacterial isolate characterization.
• Combining cgMLST data with metadata enhances epidemiological investigations.

Purpose of the Study:

• To develop a comprehensive cgMLST scheme for the entire Leptospira genus.
• To enable high-resolution identification of Leptospira isolates at species, clade, clonal group, and sequence type levels.
• To facilitate global surveillance and research of leptospirosis.

Main Methods:

• Development of a Leptospira-specific cgMLST scheme utilizing hundreds of conserved loci.
• Creation of a publicly accessible, web-based database for Leptospira cgMLST data analysis.
• Application of the scheme to analyze whole-genome sequencing data from Leptospira isolates.

Main Results:

• A robust cgMLST scheme for high-resolution typing of the Leptospira genus was established.
• The scheme successfully differentiates Leptospira isolates to fine genetic levels.
• Demonstrated utility of the cgMLST database for WGS data analysis and epidemiological insights.

Conclusions:

• The developed Leptospira cgMLST scheme offers a standardized approach for bacterial typing.
• The cgMLST database serves as a valuable resource for researchers and public health professionals.
• This initiative supports international collaboration and enhances global leptospirosis surveillance.