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Burrow-Wheeler Aligner (BWA)
4.6
Free Highly regarded for its accuracy and speed in sequence alignment, particularly for short reads, but can be resource-intensive.
A software package for mapping DNA sequences against a large reference genome.
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Refined 2/22/2026
About Burrow-Wheeler Aligner (BWA)
BWA (Burrow-Wheeler Aligner) is a software suite designed for mapping DNA sequences to a large reference genome. It includes three primary algorithms: BWA-backtrack (for Illumina reads up to 100bp), BWA-SW (for longer sequences from 70bp to a few megabases), and BWA-MEM (the latest and generally recommended algorithm, faster and more accurate than the others). BWA first constructs an FM-index for the reference genome. Alignment algorithms are invoked via sub-commands: aln/samse/sampe (BWA-backtrack), bwasw (BWA-SW), and mem (BWA-MEM). BWA-MEM has been largely replaced by minimap2 for long-read alignment (PacBio and Nanopore), however BWA-MEM2 offers significant speed improvements over BWA-MEM. The tool is available under the GPLv3 license.
Core Capabilities
BWA (Burrow-Wheeler Aligner) is a software suite designed for mapping DNA sequences to a large reference genome.
Main Tasks
Short-Read Alignment
Explore all tools that specialize in short-read alignment. This domain focus ensures Burrow-Wheeler Aligner (BWA) delivers optimized results for this specific requirement.
