skip uncovered; unknown alleles taken as X
skip uncovered; unknown alleles taken as X

AngieHinrichs/samtabix,AngieHinrichs/samtabix,AngieHinrichs/samtabix,lh3/samtools,lh3/samtools,AngieHinrichs/samtabix,lh3/samtools,AngieHinrichs/samtabix