Department of Basic Sciences and Aquatic Medicine, Norwegian School of Veterinary Science, PO Box 8146 Dep., 0033 Oslo, Norway.
J Gen Virol. 2011 Jul;92(Pt 7):1721-1726. doi: 10.1099/vir.0.030270-0. Epub 2011 Mar 14.
The Chilean salmonid industry was developed by importing breeding materials, a practice still in effect due to deficits in the national supply of roe. Importation of breeding materials is often associated with the transmission of pathogens. The objectives of this study were to compare the infectious pancreatic necrosis virus (IPNV) isolates from Chile to those of European origin and to determine the diversity of the Chilean IPNV. The VP2 genes of IPNV from Chilean fish (whose eggs originated from Scotland, Iceland and Norway) were compared to isolates from fish in Norway and Ireland. The results show that the isolates are identical (97-99%) and cluster into one genogroup. Our findings support previous reports of association between the trade-in breeding materials and transmission of pathogens. Furthermore, our results demonstrate the genotypic diversity of Chilean IPNV isolates. These findings have important implications for IPNV disease diagnosis and control in Chile.
智利的鲑鱼养殖业是通过进口繁殖材料发展起来的，由于国内鱼卵供应不足，这种做法仍在继续。繁殖材料的进口通常伴随着病原体的传播。本研究的目的是比较来自智利和欧洲的传染性胰脏坏死病毒（IPNV）分离株，并确定智利 IPNV 的多样性。对来自智利鱼（其鱼卵分别来自苏格兰、冰岛和挪威）的 IPNV 的 VP2 基因与来自挪威和爱尔兰鱼的分离株进行了比较。结果表明，这些分离株完全相同（97-99%），并聚为一组。我们的研究结果支持了繁殖材料贸易与病原体传播之间存在关联的先前报告。此外，我们的研究结果表明智利 IPNV 分离株具有遗传多样性。这些发现对智利的 IPNV 疾病诊断和控制具有重要意义。
