Journal
AQUATIC BIOLOGY
Volume 14, Issue 3, Pages 223-232Publisher
INTER-RESEARCH
DOI: 10.3354/ab00395
Keywords
Genetic variation; Pueruli; Vertical transmission
Categories
Funding
- NSF [OCE BE-UF 0723662, OCE0452805, OCE 0929086]
- Division Of Ocean Sciences
- Directorate For Geosciences [0928398, 0929086] Funding Source: National Science Foundation
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Panulirus argus virus 1 (PaV1) is an unclassified, pathogenic virus first discovered in Caribbean spiny lobsters Panulirus argus from the Florida Keys, USA, and has since been confirmed in lobsters in other parts of the Caribbean. Several studies have examined the prevalence, pathogenicity, and population dynamics of the pathogen in the lobster host, but little is known about the genetic diversity of the virus. We analyzed a fragment of viral DNA from lobsters collected in the Florida Keys, which provided the first insight into the genetic diversity of PaV1. The variation in viral sequences, both within and between individual lobsters, indicates that lobsters can be infected with multiple viral strains. Laboratory experiments in which uninfected lobsters were serially exposed to lobsters inoculated with PaV1 implied that rapid mutation of strains is unlikely and suggest that there may be endemic strains of PaV1. In addition, we discovered PaV1 in P. argus postlarvae (pueruli), suggesting that the virus may disperse through the Caribbean within the long-lived (5 to 7 mo) planktonic phyllosoma larvae-a novel mechanism for dispersal of viruses in the sea.
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