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Benefits of running UnifiedGenotyper on multiple samples at the same time
The best practice guide states to call variants across all samples simultaneously. Besides the ease of working with one multi-sample VCF, what advantages are there to calling the variants at the same time? Does GATK leverage information across all samples when making calls? If so, what assumptions is the UnifiedGenotyper making about the relationship of these samples to each other, and what are the effects on the variant calls?