FIG. 7.

Presence of the hgbA gene in P. multocida strains: dot blot hybridization of chromosomal DNA from 34 P. multocida strains obtained from different animal sources and belonging to several serotypes with a digoxigenin-labeled 989-bp internal fragment of the hgbA gene. The DNA position corresponding to each of the strains is indicated above the nitrocellulose membrane. Equal amounts of chromosomal DNA (1 μg) of all strains were applied to the nitrocellulose membrane, and hybridization was performed under high-stringency conditions.