Difference between revisions of "Bwa"
| Line 13: | Line 13: | ||
And then a more modern usage which consists of just one step: '''bwa mem'''.  | And then a more modern usage which consists of just one step: '''bwa mem'''.  | ||
| − | |||
| − | |||
== Indexing ==  | == Indexing ==  | ||
When bwa indexes a reference, it will use the whole filename and generate output index files with extensions added onto this name.  | When bwa indexes a reference, it will use the whole filename and generate output index files with extensions added onto this name.  | ||
| + | |||
| + |  bwa index input_reference.fasta index_prefix  | ||
Revision as of 14:16, 30 November 2016
Introduction
Heng Li's aligner.
Usage
As with samtools, bwa also went through some re-structuring, so that it has an old-style tw-step (aln and sam{s,p}e) usage, characterised by the following typical sequence of commands:
bwa index reference.fa bwa aln -I -t 8 reference.fa s_1.txt > out.sai bwa samse reference.fa out.sai s_1.txt > out.sam samtools view -bSu out.sam | samtools sort - out.sorted
And then a more modern usage which consists of just one step: bwa mem.
Indexing
When bwa indexes a reference, it will use the whole filename and generate output index files with extensions added onto this name.
bwa index input_reference.fasta index_prefix