Alvis

Alvis visualizes contig and read alignments to reference genomes or gene sets and detects potential chimeric sequences to support evaluation of genome assemblies and long-read alignment data.

Key Features:

• Alignment Visualization: Generates vector-based alignment visualizations from multiple alignment file formats, producing output in LaTeX and SVG formats.
• Chimera Detection: Identifies potentially chimeric reads or contigs that may cause misassemblies in genomic datasets.
• Assembly Quality Assessment: Highlights alignment patterns and read coverage to reveal potential assembly errors.
• Multi-Format Alignment Support: Accepts a variety of common alignment file formats produced by sequence aligners.

Scientific Applications:

• Genome Assembly Evaluation: Examines contig and read alignments to assess assembly accuracy and structural consistency.
• Long-Read Alignment Analysis: Investigates alignment patterns in long-read sequencing datasets.
• Misassembly Detection: Identifies chimeric reads or contigs that may introduce structural errors into genome assemblies.

Methodology:

Alvis parses alignment data from supported alignment file formats, analyzes alignment structures to identify potential chimeric regions, and generates vector visualizations in LaTeX and SVG formats to represent contig and read alignments.