katholt / srst2

Short Read Sequence Typing for Bacterial Pathogens
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Indel variation in reference alleles lead to sporadic ST miscalls for S. aureus #140

Open keyfm opened 1 year ago

keyfm commented 1 year ago

Hi, I am studying within-person S.aureus variability, and sequence many isolates to characterize the population diversity.

I observe sporadically ST inconsistencies, where single isolates are called NF while other isolates get a ST assigned, despite phylogenetic confirmation of genetically close relationships on the genome level.

Inspection of the alignment identifies the miscalled allele carries a deletion (in the middle of the gene) compared to the presumable correct allele (in the attached screenshot the deletion is at position 114). How can I correct that behavior?

Thanks! felix Untitled