BLAST Ring Image Generator

BLAST Ring Image Generator generates circular comparative visualizations of prokaryotic genomes using BLAST-based sequence similarity to support genomic comparisons and read mapping analyses.

Key Features:

• Circular Visualization: Represents genomes as circular maps with concentric rings for comparative analysis.
• Unlimited Comparisons: Allows comparison of multiple genomes without an imposed limit on the number of genomes.
• Draft Genome Utilization: Displays read coverage, assembly breakpoints, and collapsed repeats from draft genome assemblies.
• Read Mapping Support: Supports mapping unassembled sequencing reads against one or more reference genomes.
• Custom Data Integration: Integrates custom data and annotations into visualizations.
• BLAST Identity Color-coding: Color-codes rings based on BLAST match percentage identity to indicate sequence similarity.

Scientific Applications:

• Genomic Research: Provides visualization of large genomic datasets to support comparative analyses.
• Prokaryotic Genomics: Aids identification of genotypic differences among closely related prokaryotes for studies of microbial diversity and evolution.
• Data Communication: Facilitates validation, interpretation, and communication of genomic comparison results.

Methodology:

Generates images depicting similarity between a central reference genome and other genomes as concentric rings; color-codes rings based on BLAST match percentage identity; automates file parsing and BLAST comparisons; supports mapping unassembled sequencing reads against one or more reference genomes and displays read coverage, assembly breakpoints, and collapsed repeats.