FIG 2.
F. psychrophilum strain 950106-1/1 CRISPR1 overview. (a) Graphic representation of cas genes, spacer, and repeats of CRISPR1 in the F. psychrophilum strain 950106-1/1; (b) Web logo of nucleotide comparison repeats of CRISPR1 in F. psychrophilum strain 950106-1/1; (c) nucleotide comparison of 20 spacers of CRISPR1 in F. psychrophilum strain 950106-1/1. All the six phage-resistant isolates derived from the ancestral strain displayed the same nucleotide sequences in the spacer and repeat contents.