Open AccessIsolates of Piscirickettsia salmonis from Scotland and Ireland Show Evidence of Clonal Diversity
Author(s) -
Helen I. Reid,
A. A. Griffen,
T. H. Birkbeck
Publication year - 2004
Publication title -
applied and environmental microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.552
H-Index - 324
eISSN - 1070-6291
pISSN - 0099-2240
DOI - 10.1128/aem.70.7.4393-4397.2004
Subject(s) - biology , ribosomal dna , internal transcribed spacer , zoology , aquaculture , 16s ribosomal rna , norwegian , phylogenetics , ribosomal rna , genetics , fishery , fish <actinopterygii> , gene , linguistics , philosophy
Salmonid rickettsial septicemia, caused by Piscirickettsia salmonis, causes major mortalities in Chilean salmonid aquaculture and is an increasing problem in Atlantic salmon in Ireland and Scotland. Analysis of 16S-to-23S internal transcribed sequences and 16S ribosomal DNA (rDNA) shows that Irish isolates of P. salmonis form two new groups of the organism while Scottish isolates cluster together with Norwegian and Canadian isolates from Atlantic salmon.