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. 2015 Jun 3;89(16):8540–8555. doi: 10.1128/JVI.00522-15

FIG 1.

FIG 1

Example of Primer ID distribution. Most of the Primer IDs appear at very low frequency (once or twice), while some of them appear several hundreds of times in the raw read output. Artifacts of mutations within the Primer ID (offspring) and PCR amplification skewing and primer ID resampling are suggested as features that help shape the observed distribution of reads per Primer ID.