Tersect

Tersect performs fast set-theoretical operations on sequence variant data to compare, intersect, and extract differences among genotypes and variants across large panels of individuals for genomic analyses.

Key Features:

• Set Theoretical Operations: Enables flexible set-theoretical expressions on sequence variant data, including genotypes and variants, to support complex comparative analyses.
• High-Performance Indexing: Generates index files from VCF inputs and employs optimized storage and indexing algorithms to return lists of variants in selected regions with rapid query execution.
• Optimized for Large Datasets: Engineered to handle large panels of individuals and reduce runtime for comparing genomic features relative to non-indexed approaches.

Scientific Applications:

• Comparative Genomics: Compare genomic features and variant sets across numerous individuals or cohorts using set operations.
• Genetic Association Analyses: Support association studies by enabling extraction of shared, unique, or exclusive variant sets among sample groups.
• Population Genetics: Characterize population-specific variants and variant frequency patterns by performing intersections and differences across samples.

Methodology:

Implemented in C; creates index files from VCF inputs and applies optimized storage and indexing algorithms to execute set-theoretical queries on genotype and variant data.