Fig. 2
From: A comprehensive survey of integron-associated genes present in metagenomes
Boxplots for a ORF length and b G/C-content for the integron-associated genes identified in this study. For comparisons, the corresponding data for three reference bacterial species have been included, Escherichia coli K-12, Staphylococcus aureus NCTC8325 and Bifidobacterium longum NCC2705. c Cluster analysis of the integron-associated genes. The x-axis shows the cluster threshold in sequence identity (higher value corresponds to a more homogeneous clusters) and the y-axis the number of produced clusters