Table 2.

Taxonomic classification of all strains identified that include at least one dfrb.

Class/Order/Family/Genus	Strain Count a
Betaproteobacteria	1
Burkholderiales	1
Burkholderiaceae	1
Burkholderia	1
Gammaproteobacteria	60 (110)
Aeromonadales	2
Aeromonadaceae	2
Aeromonas	2
Enterobacterales	16 (17)
Enterobacteriaceae	14 (15)
Citrobacter	1
Enterobacter	1
Escherichia	4
Klebsiella	4 (5)
Salmonella	4
Morganellaceae	1
Providencia	1
Yersiniaceae	1
Serratia	1
Pseudomonadales	42 (91)
Moraxellaceae	1
Acinetobacter	1
Pseudomonadaceae	41 (90)
Pseudomonas	41 (90)

^a Values include sequences used in the analysis after exclusion of redundancy. Values in parentheses include redundant sequences.