Abstract
We report here the draft genome sequence of a rickettsia-like organism, isolated from a New Zealand Chinook salmon farm experiencing high mortality. The genome is approximately 3 Mb in size, has a G+C content of approximately 39.2%, and is predicted to contain 2,870 coding sequences.
Highlights
We report here the draft genome sequence of a rickettsia-like organism, isolated from a New Zealand Chinook salmon farm experiencing high mortality
P. salmonis was initially isolated in farmed coho salmon, Oncorhynchus kisutch, during a high mortality epizootic in Chile in 1989 that resulted in huge economic losses [2, 3]
A high mortality event among Chinook salmon, Oncorhynchus tshawytscha, farmed in the Marlborough Sounds, New Zealand, was reported to the Ministry for Primary Industries in April 2015. During this event an Rickettsia-like organisms (RLOs) was isolated from the affected fish, of which identification was confirmed by histopathology, PCR, and nucleotide sequencing of the internal transcribed spacer and 16S genes
Summary
We report here the draft genome sequence of a rickettsia-like organism, isolated from a New Zealand Chinook salmon farm experiencing high mortality. Rickettsia-like organisms (RLOs) are Gram-negative bacteria increasingly recognized as important fish pathogens in the salmonid aquaculture industry. Piscirickettsia salmonis is the first described RLO affecting fish and causes a systemic infection known as piscirickettsiosis [1]. P. salmonis was initially isolated in farmed coho salmon, Oncorhynchus kisutch, during a high mortality epizootic in Chile in 1989 that resulted in huge economic losses [2, 3].
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