PMID- 15567033 OWN - NLM STAT- MEDLINE DCOM- 20050318 LR - 20081121 IS - 0168-1702 (Print) IS - 0168-1702 (Linking) VI - 107 IP - 1 DP - 2005 Jan TI - Ostreid herpesvirus 1 (OsHV-1) detection among three successive generations of Pacific oysters (Crassostrea gigas). PG - 47-56 AB - Ostreid Herpesvirus 1 (OsHV-1) was likely detected in Pacific oysters, Crassostrea gigas, at different stages of development. Viral infections were associated with high mortality rates in the spat and larvae. Furthermore, the persistance of OsHV-1 in asymptomatic adults was demonstrated by detection of viral DNA and proteins. In the present study, three successive generations of C. gigas (G0 and G1 parental oysters, G1 and G2 larvae) were screened for OsHV-1 by PCR. Viral DNA was detected in 2-day-old larvae, indicating that infection may take place at very early stages. Although results strengthen the hypothesis of a vertical transmission, it was not possible to predict the issue of a particular type of cross. Indeed, the detection of viral DNA in parental oysters did not systematically correspond to a productive infection or result in a successful transmission to the progeny. However, the infective status of the parents appeared to have an influence on both the infection and the survival rates of the progeny. Crosses involving an OsHV-1 infected male and a non-infected female resulted in hatching and larval survival rates statistically lower than those observed in the other types of cross. These results suggest that OsHV-1-infected females may transmit to their offspring some kind of protection or resistance against viral infection. FAU - Barbosa-Solomieu, V AU - Barbosa-Solomieu V AD - Laboratoire de Genetique et Pathologie, Institut Francais de Recherche pour l'Exploitation de la Mer, 17390 La Tremblade, France. FAU - Degremont, L AU - Degremont L FAU - Vazquez-Juarez, R AU - Vazquez-Juarez R FAU - Ascencio-Valle, F AU - Ascencio-Valle F FAU - Boudry, P AU - Boudry P FAU - Renault, T AU - Renault T LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Netherlands TA - Virus Res JT - Virus research JID - 8410979 RN - 0 (DNA, Viral) SB - IM MH - Animals MH - DNA, Viral/genetics MH - Female MH - Herpesviridae/*genetics/*isolation & purification MH - Herpesviridae Infections/transmission/veterinary/virology MH - Infectious Disease Transmission, Vertical MH - Male MH - Ostreidae/growth & development/*virology MH - Polymerase Chain Reaction EDAT- 2004/11/30 09:00 MHDA- 2005/03/19 09:00 CRDT- 2004/11/30 09:00 PHST- 2004/03/09 00:00 [received] PHST- 2004/06/23 00:00 [revised] PHST- 2004/06/25 00:00 [accepted] PHST- 2004/11/30 09:00 [pubmed] PHST- 2005/03/19 09:00 [medline] PHST- 2004/11/30 09:00 [entrez] AID - S0168-1702(04)00278-3 [pii] AID - 10.1016/j.virusres.2004.06.012 [doi] PST - ppublish SO - Virus Res. 2005 Jan;107(1):47-56. doi: 10.1016/j.virusres.2004.06.012.