FIG. 1.

Sequence differences among 16S rRNA gene alleles cloned from A. media and A. veronii strains. The diagram shows the variable sites detected in the strains analyzed in our study and in the 16S rRNA gene from Aeromonas species (modified from reference 27). The species names and the GenBank accession (Acc.) numbers are shown. The allele numbers are shown (Allele), as is how often each allele was cloned (Copies). The numbers in the top row correspond to the Escherichia coli numbering scheme. Yellow shading indicates the sequence of allele 1 from CDC0862-83 and red, green, or blue shading indicates a nucleotide substitution.