期刊
FISHES
卷 7, 期 5, 页码 -出版社
MDPI
DOI: 10.3390/fishes7050294
关键词
Macrobrachium rosenbergii; white tail disease (WTD); Macrobrachium rosenbergii nodavirus (MrNV); extra small virus-like particle (XSV)
资金
- project titled Development of Quarantine & Disease Control Program for Aquatic Life, - National Fishery Products Quality Management Service [NFQS2022001]
White tail disease is caused by Macrobrachium rosenbergii nodavirus (MrNV) and an extra-small virus (XSV). This study detected MrNV in both adult and post-larval prawns, while XSV was not detected. Although no gross signs of the disease were observed, histopathological changes were found in the muscle of adult and post-larval prawns.
White tail disease (WTD) is caused by the Macrobrachium rosenbergii nodavirus (MrNV) and an extra-small virus (XSV). MrNV belongs to the Nodaviridae family. While the role of XSV in the pathogenicity of WTD remains unclear, MrNV is considered to be a significant factor in the disease. To study WTD infection in giant freshwater prawns (Macrobrachium rosenbergii), adult and post-larval (PL) prawns were collected from three giant freshwater prawn farms in Gyeongsangnam-do, Korea in 2021. Although the adult and PL prawns did not display any gross signs of WTD, MrNV was detected in both adult and PL in this study. However, XSV was not detected in both prawns. Phylogenetic analysis revealed that the capsid protein gene sequences of MrNV obtained in this study were robustly clustered with the MrNV group, and were clearly distinguished from Alphanodavirus and Betanodavirus groups of the family Nodaviridae. Although Zenker's necrosis and myolysis were observed histopathologically in the abdominal striated muscle of adult and PL prawns, no gross signs associated with white tail were observed because of local lesions.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据