Key Laboratory of Marine Biotechnology of Fujian Province, College of Marine Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
Key Laboratory of Mariculture & Enhancement of Zhejiang Province, Zhejiang Marine Fisheries Research Institute, Zhoushan 316100, China; Marine and Fisheries Research Institute, Zhejiang Ocean University, Zhoushan 316100, China.
J Invertebr Pathol. 2023 Feb;196:107852. doi: 10.1016/j.jip.2022.107852. Epub 2022 Nov 13.
Decapod iridescent virus 1 (DIV1) is an emerging viral pathogen that infects diverse freshwater and marine crustacean species and causes considerable economic losses that seriously threaten crustacean farming and has caused enormous financial losses in recent years. In this study, we detected DIV1 from diseased crabs, with clinical symptoms such as loss of vitality and white gill filaments with edema, in a Marsupenaeus japonicus and Portunus trituberculatus polyculture pond. Four DIV1 isolates from crab samples (two isolates) and shrimp samples (two isolates) were sequenced and assembled successfully. Molecular characterization and phylogenetic analysis of the four DIV1 isolates were conducted. The DIV1 isolates from crab samples have a close genetic relationship with shrimp DIV1s, indicating the viruses share the same ancestor with those from shrimps. Our study provides valuable insights into disease prevention and control of the shrimp-crab polyculture system.
十足目虹彩病毒 1 型（DIV1）是一种新兴的病毒病原体，感染多种淡水和海水甲壳类动物物种，造成相当大的经济损失，严重威胁甲壳类养殖，并在近年来造成了巨大的经济损失。在这项研究中，我们从活力下降和出现水肿的白色虾鳃丝等临床症状的患病螃蟹中检测到了 DIV1，这些螃蟹来自于一个日本沼虾和三疣梭子蟹混养池塘。我们成功地对来自螃蟹样本（两个分离株）和虾样本（两个分离株）的四个 DIV1 分离株进行了测序和组装。我们对这四个 DIV1 分离株进行了分子特征和系统发育分析。来自螃蟹样本的 DIV1 分离株与虾 DIV1 具有密切的遗传关系，表明这些病毒与来自虾的病毒具有相同的祖先。我们的研究为虾蟹混养系统的疾病预防和控制提供了有价值的见解。
Arch Microbiol. 2022-11-1
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