I have exome sequence data of cancer patients. I did quality filtration and mapping using bowtie2. What are filteration of bam files required for the downstream analysis . Should I go with uniquely mapped or multi mapped reads ?? (As many of samples, percentage of uniquely mapped reads is < 20 %). ??? My goal is to predict the CNVs and SNPs by using GATK.
All suggestions will be appreciated
Thank you Archana