As a complement to our sequence-based microbial identification service (AccuGENX-ID®), Charles River offers strain typing by single or multilocus sequence typing (SLST or MLST), both of which are highly accurate, sequence-based strain typing methods. We perform DNA sequencing of targets outside of the standard regions sequenced for microbial identification (16S, D2 or ITS2) to provide you with data to resolve differences and/or similarities at the strain level. Determination to the strain level allows you to definitively track the source of contamination or simply to verify your known production strains.
Given the reproducibility of these methods, they can determine if your probiotic strain is the same, or if isolates recovered from one area are the same or different as another isolate – a trait that allows for high-resolution trending and tracking projects.