Figure 2.

The Most Abundant OTU, which Encompasses OTU5 (OTU5-enc), Is Correlated with Microbial Load

(A) Bacterial and plant fraction of metagenome shotgun sequencing reads in 176 plants.

(B) Correlation between fraction of bacterial reads in metagenome data and relative abundance of OTU with 100% identity to OTU5 in the v4 region of 16S rDNA amplicons from the same 176 samples.

(C) Distribution of Pearson correlation coefficients between microbial loads as inferred from fraction of bacterial reads and OTU abundances (as shown for OTU5 in B). The correlation coefficient for the OTU5-associated sequence abundance is the highest among any of the 3,647 OTUs detected across all samples.

See also Figure S2.