Bacterial genome-wide association studies: exploring the genetic variation underlying bacterial phenotypes

Area of Science:

• Microbiology
• Genomics
• Bioinformatics

Background:

• High-throughput genome sequencing and bioinformatics tools enable bacterial genome-wide association studies (BGWAS).
• BGWAS investigate genetic variations linked to bacterial phenotypes at the population genome level.
• These studies are crucial for understanding bacterial adaptation and traits.

Purpose of the Study:

• To provide a comprehensive overview of BGWAS applications.
• To summarize the BGWAS workflow, including study design and data analysis.
• To highlight specialized bioinformatics tools and discuss confounding factors.

Main Methods:

• Systematic review of BGWAS literature and methodologies.
• Summary of common study designs and data analysis pipelines.
• Identification and discussion of relevant bioinformatics software and tools.

Main Results:

• BGWAS are effective in elucidating genetic determinants of bacterial drug resistance, pathogenicity, host specificity, biofilm formation, and probiotic fermentation.
• A detailed workflow for BGWAS is presented, covering all stages from design to analysis.
• Specialized tools and potential confounding factors are discussed to improve BGWAS accuracy.

Conclusions:

• BGWAS are a powerful approach for uncovering the genetic basis of bacterial phenotypes.
• This review serves as a valuable reference for researchers applying BGWAS.
• Understanding genetic variations through BGWAS is key to advancing bacterial research.