Fig. 5
From: On the global CRISPR array behavior in class I systems
CRISPR locus occurrence and position relative to cas operons. a Histogram representing the frequency of genomes carrying the specified number of CRISPR loci. Histograms representing the relationship of the proportion of CRISPR arrays that are adjacent to the cas operon. b Number of CRISPR arrays encoded on a given chromosome. c Location of the CRISPR arrays relative to the cas operon