Genetic fingerprints of Edwardsiella spp. generated from repetitive extragenic palindromic PCR amplification of gDNA from Edwardsiella hoshinae (lane 1), E. ictaluri (lanes 2 to 4), E. piscicida (lanes 5 to 29), E. anguillarum (lanes 30 to 36), and E. tarda (lanes 37 to 47) using E. coli as an outlier (ATCC 25922, lane 48), a no-template control (lane E), and concurrently run standards (Hyperladder 50 bp, lanes L). Genetic profiles were generated using BOX (A), ERIC I and II (B), ERIC II (C), and GTG5 (D) primers.