BeatsonLab-MicrobialGenomics

BeatsonLab-MicrobialGenomics provides comparative visualization and analysis of microbial (prokaryote) genomes using BLAST-based methods via BRIG (BLAST Ring Image Generator) and Easyfig to interpret NGS-derived and draft genome sequences.

Key Features:

• BRIG Visualization: Represents prokaryote genomes as concentric circular images to compare multiple genomes simultaneously using BLAST results.
• BRIG Scalability: Allows comparison of large numbers of genomes without arbitrary limits on the number of genomes per image.
• Draft Genome Support in BRIG: Displays read coverage, assembly breakpoints, and collapsed repeats for draft genome sequences.
• Custom Data Integration: Incorporates user-provided annotations and custom data layers into comparative visualizations.
• Easyfig Linear Comparisons: Produces linear comparison figures for multiple genomic loci, from single genes to whole chromosomes.
• Easyfig BLAST Coloring: Applies interactive coloring to BLAST comparisons between genomic regions for visual interpretation.
• BLAST-based Sequence Comparison: Leverages BLAST (Basic Local Alignment Search Tool) for sequence similarity identification between genomic sequences.

Scientific Applications:

• Genotypic difference identification: Identifies genotypic differences between closely related prokaryotes through comparative visualization.
• Draft assembly assessment: Visualizes read coverage, assembly breakpoints, and collapsed repeats to assess draft genome assemblies.
• Comparative genomics and evolution: Aids interpretation of evolutionary relationships and genomic conservation across prokaryote strains.
• Regional genomic comparison: Enables detailed comparison of specific genomic loci for gene- and region-level analyses.
• Figure generation for publication: Produces visual outputs suitable for communicating comparative genomics results and preparing publication figures.

Methodology:

Both tools leverage BLAST (Basic Local Alignment Search Tool) for sequence comparison; BRIG depicts BLAST comparisons as concentric rings while Easyfig represents comparisons linearly.