Mapped reads.

For each simulated metagenome (columns), the total number of reads is given at bottom and the proportion of reads mapped to each of the ten reference organisms are in rows. Lb = Lactobacillus, Lc = Lactococcus. For each of the three DNA extraction protocols, data are provided for the primary sequence libraries (“main”) as well as for the additional libraries, created using the same protocol with (“glyc”) and without (“add”) glycerol added to the stock isolate cultures.