Extended Data Fig. 6: Intestinal samples have higher bacteriophage load.
From: Profiling the human intestinal environment under physiological conditions
a) The median sequencing depth of vOTUs (n = 1343) in intestinal samples was highly correlated with depth in stool samples (Pearson; P < 2.2 × 10−16). 481 vOTUs appeared in less than half of the intestinal samples and hence the median was 0 (represented as 10−4). b) Intestinal samples had significantly higher read fraction mapping to vOTUs. n = 29, 172, and 58 for saliva, intestinal, and stool samples, respectively. P-values are from two-tailed Student’s t-tests. P-values from top to bottom, left to right: 4.7 × 10−14, 2.2 × 10−16, 2.3 × 10−7. c) The number of induced prophages was generally higher in intestinal samples across subjects and was lowest in saliva samples. d) pH was correlated with the number of induced prophages in intestinal samples (Spearman; P = 0.0015).
