Fig. 5

CF-BD genomic characterization and comparative analysis. a Synteny analysis between the genome of Citrobacter freundii, Citrobacter koseri, Citrobacter rodentium, and CF-BD. b Genomic components comparison between C. freundii, C. koseri, C. rodentium, and CF-BD. c Alignment of the CF-BD genome (circle 1 from the outside in) with C. freundii (circle 2), C. koseri (circle 3), and C. rodentium (circle 4) by applying BLAST and BLAST Ring Image Generator (BRIG). Similarity is symbolized by colored blocks. The more intense the color, the higher the similarity. CF-BD-specific regions are highlighted by black frames labeled with Roman numerals (I–III). Circles 5, 6, and 7 represent the predicted coding DNA sequence (CDS), the ORF of the function-annotated genes, and the phosphatase genes, respectively. Circles 8 and 9 represent the GC skew and GC content, respectively. d The phylogenetic relationship of the different phosphate hydrolase families. Family members with green dots are from CF-BD and others are organophosphorus hydrolase genes of other bacteria. The red trees indicate potential OPH genes in CF-BD (accession numbers for genes are listed in Additional file 8: Table S6)