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Description of the bug
As you mention in your Nextflow pipeline: @https://nf-co.re/sarek/3.0.2/parameters it would be possible to obtain the results of tumor-only somatic variant calling using strelka tool (among other methods).
I've run the pipeline using strelka with tumor-only samples and I've ended up having results for germline variants (variants.vcf.gz, genome.S${N}.vcf.gz) instead of somatic ones (somatic.snvs.vcf.gz, somatic.indels.vcf.gz) (@https://github.com/Illumina/strelka/blob/v2.9.x/docs/userGuide/README.md ).
I read that strelka can perform somatic variant calling when you have tumor-normal samples pairs, however it is not possible to do so when you have tumor-only samples. @https://academic.oup.com/bioinformatics/article/28/14/1811/218573. Did I miss any extra parameter?
Sorry in advance if i misunderstood something.
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