Assessment of the origin of white spot syndrome virus DNA sequences in farmed Penaeus monodon in Australia

Knibb, Wayne; Le, Thanh Cuong; Katouli, Mohammad; Bar, Ido; Lloyd, Charles W.

doi:10.1016/j.aquaculture.2018.05.018

Cited by 16 publications

(14 citation statements)

References 13 publications

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“…1, a total of 21 genomic loci were juxtaposed with the termini of Nimav-1_LVa: 10 loci at the 5 -end and 11 at the 3 -end. The number of these termini (21) accorded well with the number of the integrated Nimav-1_LVa copies (12), which was deduced from the total length of the viral sequences. Thus, this data implied that the site between g002 and g276 was the only possible recombination site on the virus genome.…”

Section: The Integration Site Of Nimav-1_lvasupporting

confidence: 61%

“…Infected shrimps are characterized by white spots (calcified deposits) on the exoskeleton. The first reported appearances of WSD in penaeid shrimp occurred in China (Fujian) in 1992 [11] and spread globally [10,[12][13][14][15] to Taiwan, Korea, and Japan (1993), South East Asian countries (1996), United States (Texas and SC in 1995), India (1998), Latin America (1999), Madagascar, Mozambique and Saudi Arabia (2010-2012), and Australia (2016). The cause of WSD is large, enveloped dsDNA virus called white spot syndrome virus (WSSV) [16][17][18] that infects over 90 arthropod species naturally or experimentally [17,19], such as crayfishes, lobsters, crabs, and others.…”

Section: Introductionmentioning

confidence: 99%

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The Complete Genome of an Endogenous Nimavirus (Nimav-1_LVa) From the Pacific Whiteleg Shrimp Penaeus (Litopenaeus) Vannamei

Bao

Tang

Alcivar–Warren³

2020

Genes

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White spot syndrome virus (WSSV), the lone virus of the genus Whispovirus under the family Nimaviridae, is one of the most devastating viruses affecting the shrimp farming industry. Knowledge about this virus, in particular, its evolution history, has been limited, partly due to its large genome and the lack of other closely related free-living viruses for comparative studies. In this study, we reconstructed a full-length endogenous nimavirus consensus genome, Nimav-1_LVa (279,905 bp), in the genome sequence of Penaeus (Litopenaeus) vannamei breed Kehai No. 1 (ASM378908v1). This endogenous virus seemed to insert exclusively into the telomeric pentanucleotide microsatellite (TAACC/GGTTA)n. It encoded 117 putative genes, with some containing introns, such as g012 (inhibitor of apoptosis, IAP), g046 (crustacean hyperglycemic hormone, CHH), g155 (innexin), g158 (Bax inhibitor 1 like). More than a dozen Nimav-1_LVa genes are involved in the pathogen-host interactions. We hypothesized that g046, g155, g158, and g227 (semaphorin 1A like) were recruited host genes for their roles in immune regulation. Sequence analysis indicated that a total of 43 WSSV genes belonged to the ancestral/core nimavirus gene set, including four genes reported in this study: wsv112 (dUTPase), wsv206, wsv226, and wsv308 (nucleocapsid protein). The availability of the Nimav-1_LVa sequence would help understand the genetic diversity, epidemiology, evolution, and virulence of WSSV.

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Section: The Integration Site Of Nimav-1_lvasupporting

confidence: 61%

Section: Introductionmentioning

confidence: 99%

The Complete Genome of an Endogenous Nimavirus (Nimav-1_LVa) From the Pacific Whiteleg Shrimp Penaeus (Litopenaeus) Vannamei

Bao

Tang

Alcivar–Warren³

2020

Genes

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“…Since its first occurrence in China and Taiwan during 1991 to 1992 [ 12 ], the virus has spread rapidly through Asia [ 3 , 13 ], the Americas [ 14 ], Middle East, Africa [ 15 , 16 ] and Australia [ 17 , 18 ]. In cultured shrimps, WSSV infection can lead to a loss of up to 100% within 1–10 days [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

Genotype Diversity and Spread of White Spot Syndrome Virus (WSSV) in Madagascar (2012–2016)

Onihary

Razanajatovo

Rabetafika

et al. 2021

Viruses

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White Spot Disease (WSD) caused by the White Spot Syndrome Virus (WSSV) is the most devastating viral disease threatening the shrimp culture industry worldwide, including Madagascar. WDS was first reported on the island in 2012; however, little is known about the circulation of the virus and its genetic diversity. Our study aimed at describing the molecular diversity and the spread of WSSV in the populations of Madagascan crustaceans. Farmed and wild shrimps were collected from various locations in Madagascar from 2012 to 2016 and were tested for WSSV. Amplicons from positive specimens targeting five molecular markers (ORF75, ORF94, ORF125, VR14/15 and VR23/24) were sequenced for genotyping characterizations. Four genotypes were found in Madagascar. The type-I genotype was observed in the south-west of Madagascar in April 2012, causing a disastrous epidemic, then spread to the North-West coast. Type-II strains were detected in October 2012 causing an outbreak in another Penaeus monodon farm. In 2014 and 2015, types II and III were observed in shrimp farms. Finally, in 2016, types II and IV were found in wild species including Fenneropenaeus indicus, Metapenaeus monoceros, Marsupenaeus japonicus and Macrobrachium rosenbergii. Considering the economic importance of the shrimp industry for Madagascar, our study highlights the need to maintain WSSV surveillance to quickly take appropriate countermeasures in case of outbreak and to sustain this industry.

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“…6,16,17 More recent WSD outbreaks were reported in some EU countries, 18 Saudi Arabia, Mozambique, Madagascar and Australia. 11,12,18,19 Knibb et al confirmed the vulnerability of shrimp farming to WSD regardless of the climate zone. 12 The Quarterly Report from Network of Aquaculture Centres in Asia-Pacific 20 showed that WSD is still causing major problems in many shrimp-producing countries in the Asia-Pacific region despite implementing biosecurity measures.…”

mentioning

confidence: 99%

“…at the regional level can be partially controlled by implementing regulations to prevent transboundary disease spreading. [10][11][12] WSD was first reported in Marsupenaeus japonicus in 1992 in Taiwan 3 and Japan. 4,5 Soon thereafter, WSD spreads to other shrimpproducing countries in Asia [13][14][15] and developed into an endemic disease.…”

mentioning

confidence: 99%

White spot syndrome virus host range and impact on transmission

Desrina

Prayitno

Verdegem

et al. 2022

Reviews in Aquaculture

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White spot syndrome virus (WSSV), the etiological agent of white spot disease (WSD), is a significant pathogen affecting shrimp farming industry worldwide. White spot syndrome virus is a generalist virus mainly infecting decapod crustaceans. The aims of this review were to: (1) Re-evaluate and update the status of reported WSSV host and vector species based on the methods used when detecting replication and transmission to shrimp and 2) make a critical evaluation of existing literature on the presence of WSSV in aquatic organisms and the potential role these organisms might play in the transmission of WSSV in pond systems and the wild. An evaluation of literature about WSSV reported host and vector species showed an increase from 33 families to 50 families including 11 families of non-crustacean hosts, proved the virus continues to spread beyond farmed shrimp and the shrimp pond environment.White spot syndrome virus transmission in the aquatic environment is complex as depicted in our model. Containment of WSSV in ponds and the natural environment is challenging, mainly because of its generalist nature and a lack of understanding about (1) WSSV transmission in the aquatic setting, (2) the route of WSSV transmission among species exist in the aquatic environment and (3) information on the transmission dynamics between WSSV in farmed crustaceans and non-farmed animals.

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Assessment of the origin of white spot syndrome virus DNA sequences in farmed Penaeus monodon in Australia

Cited by 16 publications

References 13 publications

The Complete Genome of an Endogenous Nimavirus (Nimav-1_LVa) From the Pacific Whiteleg Shrimp Penaeus (Litopenaeus) Vannamei

The Complete Genome of an Endogenous Nimavirus (Nimav-1_LVa) From the Pacific Whiteleg Shrimp Penaeus (Litopenaeus) Vannamei

Genotype Diversity and Spread of White Spot Syndrome Virus (WSSV) in Madagascar (2012–2016)

White spot syndrome virus host range and impact on transmission

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