Open AccessAn attempt to identify the evolutionary origin of a novel serotype of Salmonella enterica isolated from harbour porpoises
Author(s) -
D. C. Old,
Pamela B. Crichton,
A. G. Taylor,
Henry Mather
Publication year - 2001
Publication title -
journal of medical microbiology/journal of medical microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 117
eISSN - 1473-5644
pISSN - 0022-2615
DOI - 10.1099/0022-1317-50-5-415
Subject(s) - porpoise , serotype , phocoena , salmonella enterica , ribotyping , biology , salmonella , microbiology and biotechnology , typing , virology , polymerase chain reaction , genetics , bacteria , gene , harbour , computer science , programming language
The isolation since 1991 of a new serotype of Salmonella enterica (antigenic formula 4,12:a:-) from harbour porpoises (Phocoena phocoena) at post-mortem examination raised the question of its evolutionary origin. Representative strains of S. enterica serotype 4,12:a:- and strains of eight other serotypes of serogroup 04 with phase-1 flagellar antigen H 'a' were examined by EcoRI ribotyping, IS200 fingerprinting and PCR-based profiling. Statistical analysis of results of multiple typing showed that strains of Salmonella serotype 4,12:a:- were genetically distant from those of antigenically similar salmonella serotypes, none of which seemed likely to be the progenitor of the 'porpoise' serotype.