| Abstract: | Genetic relatedness of 20 Salmonella isolates comprising 16 serotypes was analysed by restriction endonuclease digestion of the total DNA with six endonucleases individually. The rDNA fingerprints generated by EcoRI were more polymorphic, each serotype showed a unique fingerprint sharing several core (monomorphic) bands with several polymorphic bands. Eight characteristic NciI rDNA fingerprints were found. Similar rDNA RFLP patterns were observed in strains of Salmonella from different serotypes.S.I. Koh-Luar and E. Lau are with the Department of Chemical Process & Biotechnology, Singapore Polytechnic, 500 Doyer Road, Singapore 139651. Republic of Singapore; S. T. Chew is with the Veterinary Public Health Laboratory (VPHL), Primary Production Department (PPD), 51 Jalan Buroh, Singapore 619415. Republic of Singapore. S.B. Chua is with the Veterinary Public Health Division, Primary Production Department, 5 Maxwell Road, No. 03-00, Tower Block, MND Complex, Singapore 069110. Republic of Singapore. |
