Assessment of WSSV prevalence and distribution of disease-resistant shrimp among the wild population of Penaeus monodon along the west coast of India

Chakrabarty, Usri; Mallik, Ajoy; Mondal, Debabrata; Dutta, Sourav; Mandal, Nripendranath

doi:10.1016/j.jip.2014.03.005

Cited by 15 publications

(24 citation statements)

References 21 publications

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“…For example, some populations of the pest moth Cydia pomonella have recently evolved resistance to its Granulosis virus, via a single dominant sex-linked allele that blocks viral replication [ 32,33 ]. Similarly, resistance to White Spot Syndrome Virus in the shrimp Penaeus monodon has been mapped to single marker associated with a ∼ 2000-fold reduction in viral titre [ 34 ], which occurs at a frequency of 40–60% [ 35 ].…”

Section: Virus-driven Invertebrate Evolutionmentioning

confidence: 99%

The genetics of host–virus coevolution in invertebrates

Obbard

Dudas

2014

Current Opinion in Virology

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HighlightsNo genetic data are available on viruses or antiviral defence for most animal phyla.The research bias may bias understanding of host–virus coevolution.Antiviral RNAi genes of Drosophila display rapid adaptive evolution.There is no difference between plant, vertebrate, and insect viruses in median dN/dS ratio.High-frequency large-effect segregating polymorphisms provide evidence for coevolution.

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Section: Virus-driven Invertebrate Evolutionmentioning

confidence: 99%

The genetics of host–virus coevolution in invertebrates

Obbard

Dudas

2014

Current Opinion in Virology

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“…In Bangladesh, it has been observed from field experience that some farmers in South-West region are able to obtain a reasonably good harvest despite the presence of WSSV infection characterized by severe white spot on carapace, while similar observations have also been reported from China (Lan et al 2002 ). These observations suggested the existence of possible disease resistant shrimp and genetic variants of WSSV (Chakrabarty et al 2014a , b ; Mallik et al 2016 ; Morse 1994 ). Genetic variants arisen due to mutations could be a probable reason behind molecular diagnostic failure mainly owing to inhibition of binding PCR primers; that might lead to false negative PCR results or non-specific PCR products which in return, limits the use of PCR based diagnostic kits (Mendoza-cano and Sanchez-paz 2013 ; Kwok et al 1990 ).…”

Section: Introductionmentioning

confidence: 99%

Circulatory white spot syndrome virus in South-West region of Bangladesh from 2014 to 2017: molecular characterization and genetic variation

et al. 2018

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White Spot Syndrome Virus (WSSV), the etiological agent of White Spot Disease (WSD) is a major impediment for shrimp aquaculture in the worldwide. A critical threshold level of WSSV load in infected shrimp is an important trait for disease manifestation and WSSV transmission in cultured shrimp and subsequently make outbreaks. The present study investigated 120 naturally infected cultured shrimp samples by SYBR Green based qPCR assay for WSD diagnosis and quantification of WSSV load. Among them, 94 samples resulted a variable count of WSSV load ranging from 2.1 × 108 to 2.64 × 1014 copies/g of shrimp tissue. The severity of WSSV infection was assessed based on the established critical threshold load of WSSV in shrimp tissue. Compared to the established critical threshold value of WSSV load in shrimp tissue, our findings showed the horrifying scenario of the severity of WSSV infection in cultured shrimps of Bangladesh that was found to be above the critical limit to initiate an outbreak in the Bangladeshi shrimp aquaculture industry. The latest phylogenetic pattern was altered from the former monophyletic history among WSSVs of Bangladesh due to a variation at 500th nucleotide of VP28 coding gene. Viruses characterized from recent outbreaks in 2015 and 2017 displayed amino acid substitution at position 167 (G→E) on the surface of VP28 protein which has demonstrated the probable replacement of indigenous virus pool. Therefore, it is imperative to take initiative for the management and prevention of WSSV outbreak to sustain shrimp aquaculture in South-West region of Bangladesh.Electronic supplementary materialThe online version of this article (10.1186/s13568-018-0553-z) contains supplementary material, which is available to authorized users.

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“…Otras regiones productivas como la India obtuvieron para diferentes épocas del año, prevalencias de WSSV desde el 0 hasta 31,6% en Penaeus monodon (Chakrabarty et al 2014) El virus de la necrosis hipodérmica y hematopoyética infecciosa (IHHNV) se detectó únicamente en la finca F1 con una baja prevalencia, coincidiendo con Morales et al (2011), con una prevalencia promedio de 13,4% para 8 regiones diferentes de Latinoamérica. Sin embargo, aunque sólo se presentó este caso en particular, se tienen registros de la aparición de cuadros clínicos que incluyen deformidades cuticulares, crecimiento reducido e irregular en fincas cercanas y en periodos distintos a los mencionados en este estudio; características que son compatibles con del síndrome de la deformidad y enanismo (RDS, y que es causado por el virus IHHNV en P. vannamei).…”

Section: Discussionunclassified

Prevalencia de las principales enfermedades infecciosas en el camarón blanco Penaeus vannamei cultivado en el Golfo de Nicoya, Costa Rica

Navarro

Mejías

2016

Rev. biol. mar. oceanogr.

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Abstract.-The largest number of shrimp farms in Costa Rica are located in the Pacific Coast's Gulf of Nicoya. In recent years, these farms have been affected by various diseases that damage the overall health of cultured shrimp. The research objective was to determine the prevalence of the main diseases in 3 different areas of the Gulf of Nicoya (Costa Rica) where Penaeus vannamei specie is produced. From August to October 2013 and February to May 2014, 3 farms were sampled in the region of Nicoya, encoded as F1, F2 y F3; 30 organisms were collected to be analyzed according to climatological season. Diagnostic methodological procedures (clinical examinations, bacteriology of hemolymph, histology and molecular analysis for the viruses WSSV, IHHNV, TSV and YHV) were done on each organism to determine the distinctive clinical signs of the diseases. An average prevalence of 2.22% for IHHNV, 13.33% for NHP, 32.78% for epicommensals, 33.89% for vibriosis, 100% for gregarines and 0% for viruses WSSV, TSV and YHV was found. For F1 and only in summer, IHHNV had the lowest prevalence with 13.33%. Furthermore, in addition to gregarines, one of the highest prevalence was obtained in the F3 during winter. This particular finding corresponded to diseases associated to epicommensals with 63.33%. In addition, the relationship between the prevalence of diseases within sampling site and the presence of diseases taking into account specific site and sampling date was analyzed. There is not enough evidence to establish a clear dependence among variables evaluated.Key words: White spot syndrome virus, parasites in shrimp, shrimp viral diseases, epidemiological surveillance, vibriosis diseaseResumen.-El Golfo de Nicoya de Costa Rica, concentra la mayor cantidad de fincas camaroneras del país, las cuales en los últimos años se han visto afectadas por diversas patologías que dañan el estado sanitario general de los camarones cultivados. La presente investigación determinó la prevalencia de las principales enfermedades en 3 sectores del Golfo de Nicoya (Costa Rica), donde se produce la especie Penaeus vannamei. Entre agosto y octubre del 2013 y entre febrero y mayo de 2014, se muestrearon 3 fincas en la región de Nicoya, codificados como F1, F2 y F3. Se obtuvieron 30 organismos de cada una y por cada estación climatológica analizada. A cada camarón se le realizaron procedimientos para determinar los signos clínicos característicos de las enfermedades más comunes, que incluyeron exámenes clínicos, bacteriología de hemolinfa, histología y análisis molecular para los virus WSSV, IHHNV, TSV y YHV. Se determinó una prevalencia promedio de 2,22% para IHHNV, 13,33% para NHP, 32,78% para epicomensales, 33,89% para vibriosis, 100% para gregarinas y 0% para los virus WSSV, TSV y YHV. Para la F1 y sólo en verano, IHHNV presentó la prevalencia más baja con 13,33% y aparte de las gregarinas, una de las prevalencias más altas se dio en la F3 durante invierno y correspondió a las enfermedades asociadas con epicomensales en un 63,33%. Se analizó la rel...

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Assessment of WSSV prevalence and distribution of disease-resistant shrimp among the wild population of Penaeus monodon along the west coast of India

Cited by 15 publications

References 21 publications

The genetics of host–virus coevolution in invertebrates

The genetics of host–virus coevolution in invertebrates

Circulatory white spot syndrome virus in South-West region of Bangladesh from 2014 to 2017: molecular characterization and genetic variation

Prevalencia de las principales enfermedades infecciosas en el camarón blanco Penaeus vannamei cultivado en el Golfo de Nicoya, Costa Rica

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