Dual analysis of host and pathogen transcriptomes in ostreid herpesvirus 1‐positive Crassostrea gigas
Summary Ostreid herpesvirus type 1 ( OsHV ‐1) has become a problematic infective agent for the P acific oyster C rassostrea gigas . In particular, the OsHV ‐1 μVar subtype has been associated with severe mortality episodes in oyster spat and juvenile oysters in F rance and other regions of the world...
| Published in: | Environmental Microbiology |
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| Main Authors: | , , , , , |
| Other Authors: | |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Wiley
2014
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1111/1462-2920.12706 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1462-2920.12706 http://onlinelibrary.wiley.com/wol1/doi/10.1111/1462-2920.12706/fullpdf |
| Summary: | Summary Ostreid herpesvirus type 1 ( OsHV ‐1) has become a problematic infective agent for the P acific oyster C rassostrea gigas . In particular, the OsHV ‐1 μVar subtype has been associated with severe mortality episodes in oyster spat and juvenile oysters in F rance and other regions of the world. Factors enhancing the infectivity of the virus and its interactions with susceptible and resistant bivalve hosts are still to be understood, and only few studies have explored the expression of oyster or viral genes during productive infections. In this work, we have performed a dual RNA sequencing analysis on an oyster sample with a high viral load. High sequence coverage allowed us to thoroughly explore the OsHV ‐1 transcriptome and identify the activated molecular pathways in C . gigas . The identification of several highly induced and defence‐related oyster transcripts supports the crucial role played by the innate immune system against the virus and opportunistic microbes possibly contributing to subsequent spat mortality. |
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