Abstract

ESCOBEDO-FREGOSO, Cristina et al. Ostreid Herpesvirus 1 in pacific lion-paw scallop Nodipecten subnodosus from Baja California Sur, Mexico. Revista bio ciencias [online]. 2023, vol.10, e1489.  Epub Feb 23, 2024. ISSN 2007-3380.  https://doi.org/10.15741/revbio.10.e1489.

The present study is the first report of the presence of Ostreid Herpesvirus 1 (OsHV-1) in the pacific lion-paw scallop Nodipecten subnodosus from Baja California Sur, Mexico, collected from 2010 to 2012. The retrospective study was conducted to evaluate if the OsHV-1 was implicated in the population decline of 2010. OsHV-1 was detected by PCR, while viral particles were quantified by qPCR. OsHV-1 detection was conducted by PCR amplification of three different genome regions used to identify OsHV-1 variants. The phylogenetic analysis revealed the position of N. subnodosus OsHV-1 among OsHV-1 samples previously collected in different countries and bivalves, where the OsHV-1 of N. subnodosus was different from OsHV-1 μVar. Similarity analyses showed differences between the OsHV-1 of Crassostrea gigas and the OsHV-1 of N. subnodosus from Mexico, however, the sequence was identical to that of OsHV-1 from France 1993. This study contributes to understanding the OsHV-1 genetic diversity and identifies the potential virus host or species involved in the viral cycle.

Keywords : Oyster's diseases; Nodipecten subnodosus; viral polymorphism; bivalves; OsHV-1.

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