GAVISUNK

GAVISUNK validates genome assemblies by comparing unique k-mer and inter-SUNK distances between Pacific Biosciences (PacBio) high-fidelity assemblies and Oxford Nanopore Technologies (ONT) reads to detect misassemblies and identify reliable genomic regions.

Key Features:

• Misassembly detection: Identifies misassemblies by analyzing discrepancies in unique k-mer distance patterns between assemblies and reads.
• Concordance assessment: Compares distances between unique k-mers in PacBio high-fidelity assemblies and ONT reads to pinpoint inconsistencies.
• Reliable region identification: Produces a set of reliable genomic regions across the assembly based on consistent k-mer distance concordance.

Scientific Applications:

• Evolutionary and comparative genomics: Supports comparative analyses and exploration of genomic architecture by ensuring assembly integrity.
• Population genetics: Enables population-scale variant analysis by flagging misassembled regions and highlighting reliably assembled segments.
• Clinical and personalized genomics: Improves confidence in assemblies used for identifying genetic variation relevant to personalized medicine.

Methodology:

Analyzes inter-SUNK (Single Unique k-mer Nucleotide K-mers) distances within ONT reads and compares those distances to PacBio high-fidelity assemblies to detect inconsistencies indicative of misassemblies and to define reliable regions.