Fig. 6. Effect of diversity on the abundance of common bacterial ASVs.

The log₂ fold change in raw abundance of the 100 most common ASVs from low diversity (pooled LacZ ancestor, individual and four clones) to high diversity (24 clones). Of the 100 most common ASVs tested, 22 significantly differed in abundance between low and high diversity, but no pattern was found between these ASVs and relatedness to the focal species, P. fluorescens. P. fluorescens was the 39th most abundant ASV. Points represent estimated log₂ fold change in raw abundance of each ASV between low and high diversity samples, error bars are ± the standard error and the number by each point is the estimated mean number of that ASV in the low diversity samples.