DNA fingerprinting for differentiation of field isolates from reference vaccine strains of Pasteurella multocida in turkeys
1990
Kim, C.J. | Nagaraja, K.V.
The genomes from field isolates of Pasteurella multocida in turkeys and those of P multocida reference CU and M9 vaccine strains were analyzed and compared after cleavage with restriction endonucleases. The electrophoretic profiles obtained with DNA fragments from field isolates and vaccine strains of the same serotype were characteristic and reproducible. These features indicated the existence of differences among the isolates of the same serotype that cannot currently be detected, using available serotyping methods. However, several field isolates had electrophoretic profiles similar to those of either CU or M9 vaccine strain. It was concluded that restriction endonuclease analysis of DNA genomes from P multocida isolated from turkeys provides the information for differentiation of field isolates from vaccine strains of the same serotype.
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