scholarly journals Complete Genome Sequences and Pathogenicity Analysis of Two Red Sea Bream Iridoviruses Isolated from Cultured Fish in Korea

Fishes ◽  
2021 ◽  
Vol 6 (4) ◽  
pp. 82
Author(s):  
Min-A Jeong ◽  
Ye-Jin Jeong ◽  
Kwang-Il Kim

In Korea, red sea bream iridovirus (RSIV), especially subtype II, has been the main causative agent of red sea bream iridoviral disease since the 1990s. Herein, we report two Korean RSIV isolates with different subtypes based on the major capsid protein and adenosine triphosphatase genes: 17SbTy (RSIV mixed subtype I/II) from Japanese seabass (Lateolabrax japonicus) and 17RbGs (RSIV subtype II) from rock bream (Oplegnathus fasciatus). The complete genome sequences of 17SbTy and 17RbGs were 112,360 and 112,235 bp long, respectively (115 and 114 open reading frames [ORFs], respectively). Based on nucleotide sequence homology with sequences of representative RSIVs, 69 of 115 ORFs of 17SbTy were most closely related to subtype II (98.48–100% identity), and 46 were closely related to subtype I (98.77–100% identity). In comparison with RSIVs, 17SbTy and 17RbGs carried two insertion/deletion mutations (ORFs 014R and 102R on the basis of 17SbTy) in regions encoding functional proteins (a DNA-binding protein and a myristoylated membrane protein). Notably, survival rates differed significantly between 17SbTy-infected and 17RbGs-infected rock breams, indicating that the genomic characteristics and/or adaptations to their respective original hosts might influence pathogenicity. Thus, this study provides complete genome sequences and insights into the pathogenicity of two newly identified RSIV isolates classified as a mixed subtype I/II and subtype II.

1996 ◽  
Vol 31 (4) ◽  
pp. 233-234 ◽  
Author(s):  
Satoru Matsuoka ◽  
Kiyoshi Inouye ◽  
Kazuhiro Nakajima

2002 ◽  
Vol 37 (1) ◽  
pp. 45-47 ◽  
Author(s):  
Hidemasa Kawakami ◽  
Kazuhiro Nakajima

1992 ◽  
Vol 58 (8) ◽  
pp. 1459-1464 ◽  
Author(s):  
Seiichi Matsui ◽  
Toshiyuki Tanabe ◽  
Masayuki Furuichi ◽  
Takao Yoshimatsu ◽  
Chikara Kitajima

2017 ◽  
Vol 52 (4) ◽  
pp. 210-213
Author(s):  
So-Young Oh ◽  
Hyun Jung Gye ◽  
Myung-Joo Oh ◽  
Toyohiko Nishizawa

2002 ◽  
Vol 68 (sup2) ◽  
pp. 1113-1115 ◽  
Author(s):  
JUN KURITA ◽  
KAZUHIRO NAKAJIMA ◽  
IKUO HIRONO ◽  
TAKASHI AOKI

Lipids ◽  
2000 ◽  
Vol 35 (12) ◽  
pp. 1359-1371 ◽  
Author(s):  
Noriaki Iijima ◽  
Satoshi Uchiyama ◽  
Yukichi Fujikawa ◽  
Muneharu Esaka

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