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Molecular epidemiological studies on piscine nodavirus, the causative agent of viral nervous necrosis in marine fish

Research Project

Project/Area Number 16380132
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field General fisheries
Research InstitutionHiroshima University

Principal Investigator

NAKAI Toshihiro  Hiroshima University, Graduate School of Biosphere Science, Professor, 大学院生物圏科学研究科, 教授 (60164117)

Co-Investigator(Kenkyū-buntansha) UEMATSU Kazumasa  Graduate School of Biosphere Science, Professor, 大学院生物圏科学研究科, 教授 (00116542)
OKINAKA Yasushi  Graduate School of Biosphere Science, Associate Professor, 大学院生物圏科学研究科, 助教授 (80363034)
MORI Koh-ichirou  Fisheries Research Agency, National Research Institute of Aquaculture, Senior Researcher, 上浦栽培漁業センター, 技術開発官 (10426314)
SUGAYA Takuma  Fisheries Research Agency, National Research Institute of Aquaculture, Senior Researcher, 上浦栽培漁業センター, 技術開発官 (30426316)
Project Period (FY) 2004 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥15,400,000 (Direct Cost: ¥15,400,000)
Fiscal Year 2006: ¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 2005: ¥4,600,000 (Direct Cost: ¥4,600,000)
Fiscal Year 2004: ¥8,900,000 (Direct Cost: ¥8,900,000)
KeywordsBetanodavirus / Nodaviridae / Viral nervous necrosis / Molecular epidemiology / Virus transmission / Reassortant virus / Disease prevention / Marine aquaculture / 魚病 / 魚のウイルス病 / ウイルス生態 / Viral Nervous Necrosis(VNN) / 海産魚のウイルス病 / ウイルス汚染 / RT-PCR / Nested PCR
Research Abstract

Betanodaviruses, family Nodaviridae, are the causal agents of viral nervous necrosis (VNN) that has given severe mortality worldwide in marine aquaculture. The viruses can be classified into four types, designated SJNNV, RGNNV, TPNNV, and BFNNV, based on similarities in the coat protein gene (RNA2). We have already demonstrated that virus-carrying bloodstocks are an important inoculum source of the virus to the offspring (larvae and juveniles). However, the virus inoculum source to older fish cultured in net-pens in open sea is still unknown. Through the present research project from 2004 to 2006, we obtained many valuable epidemiological data on the virus. We first detected betanodaviruses in a variety of wild marine fish species with no clinical signs, which were obtained from aquaculture areas and showed that their RNA2 sequences were closely similar to those of RGNNV isolates identified from diseased fish. Some virus isolates were obtained using E-11 cells and all the isolates were … More highly pathogenic to sevenband grouper, one of the most susceptible fish to RGNNV. Similarly, we demonstrated that fish from non-aquaculture areas have inapparently infected with the virus, not only RGNNV but also the other types (SJNNV, BFNNV). The RNA2 sequences of these viruses had much more variations than those from diseased fish and the subclinically infected wild fish caught in aquaculture areas mentioned above. Interestingly, we failed to isolate the virus in almost all cases, suggesting the lack of virulence-determining sequences. These results suggest that genetically varied betanodaviruses in wild fish are widely spread in Pacific, Japan Sea, and East-China Sea. Pelagic, highly migratory and mass-caught fish such as Japanese jack mackerel is possibly an effective vector to transmit betanodaviruses to geographically remote area, and might play an important role for the epidemic of VNN among cultured and also wild fish populations. We also developed some methods to prevent the disease through this project. Less

Report

(4 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • Research Products

    (26 results)

All 2007 2006 2005 2004 Other

All Journal Article (25 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] 魚類のウイルス感染症の現状と対策(総説)2007

    • Author(s)
      中井敏博
    • Journal Title

      防菌防徽誌 35

      Pages: 119-129

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 魚類のウイルス感染症の現状と対策(総説)2007

    • Author(s)
      中井敏博
    • Journal Title

      防菌防黴誌 35(2)

      Pages: 119-129

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Beatnodavirus infection in the freshwater model fish medaka (Oryzias latipes)2006

    • Author(s)
      Furusawa R.
    • Journal Title

      J. Gen. Virology 87

      Pages: 2333-2339

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Beatnodavirus infection in the freshwater model fish medaka (Oryzias latipes).2006

    • Author(s)
      Furusawa R., Y.Okinaka, T.Nakai
    • Journal Title

      J. Gen. Virol. 87

      Pages: 2333-2339

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Betanodavirus infection in the freshwater model fish medaka (Oryzias latipes)2006

    • Author(s)
      Furusawa R., Okinaka Y., Nakai T.
    • Journal Title

      Journal of General Virology 87

      Pages: 2333-2339

    • NAID

      120000875881

    • Related Report
      2006 Annual Research Report
  • [Journal Article] The Efficacy of Inactivated Virus Vaccine against Viral Nervous Necrosis (VNN)2005

    • Author(s)
      Yamashita H.
    • Journal Title

      Fish Pathology 40

      Pages: 15-21

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Mortality of wild golden grey mullet (Liza auratus) in Iranian waters of the Caspean Sea, associated with viral nervous necrosis-like agent2005

    • Author(s)
      Zorriehzahra M.J.
    • Journal Title

      Iran. J. Fish. Sciences 4

      Pages: 43-58

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Aquabirnavirus-induced protection of marine fish against piscine nodavirus infection. Fish Pathol2005

    • Author(s)
      Pakingking R. Jr.
    • Journal Title

      Fish Pathology 40

      Pages: 125-131

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Characterization of Striped jack nervous necrosis virus subgenomic RNA3 and biological activities of its encoded protein B22005

    • Author(s)
      Iwamoto T.
    • Journal Title

      J. Gen. Virology 86

      Pages: 2807-2816

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] The Efficacy of Inactivated Virus Vaccine against Viral Nervous Necrosis (VNN).2005

    • Author(s)
      Yamashita H., Y.Fujita, H.Kawakami, T.Nakai
    • Journal Title

      Fish Pathol. 40

      Pages: 15-21

    • NAID

      10019225038

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Aquabirnavirus-induced protection of marine fish against piscine nodavirus infection.2005

    • Author(s)
      Pakingking R.Jr., K.Mori, T.Sugaya, M.Oka, Y.Okinaka, T.Nakai
    • Journal Title

      Fish Pathol. 40

      Pages: 125-131

    • NAID

      10019225339

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Characterization of Striped jack nervous necrosis virus subgenomic RNA3 and biological activities of its encoded protein B22005

    • Author(s)
      Iwamoto T., Mise K., Takeda A., Okinaka Y., Mori K., Arimoto M., Okuno T., Nakai T.
    • Journal Title

      J. Gen. Virol. 86

      Pages: 2807-2816

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] The efficacy of inactivated virus vaccine against viral nervous necrosis(VNN)2005

    • Author(s)
      Yamashita Hirofumi
    • Journal Title

      Fish Pathology 40・1

      Pages: 15-21

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Aquabirnavirus-induced protection of marine fish against piscine nodavirus infection2005

    • Author(s)
      Pakingking Roland Jr.
    • Journal Title

      Fish Pathology 40・3

      Pages: 125-131

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Characterization of Striped jack nervous necrosis virus subgenomic RNA3 and biological activities of its encoded protein B22005

    • Author(s)
      Iwamoto Tokinori
    • Journal Title

      Journak of General Virology 86

      Pages: 2807-2816

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Mortality of wild golden grey mullet (Liza auratus) in Iranian waters of the Caspean Sea, associated with viral nervous necrosis-like agent2005

    • Author(s)
      Zorriehzahra M.J.
    • Journal Title

      Iranian Journal of Fisheries Sciences 4・2

      Pages: 43-58

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Identification of host-specificity determinants in betanodaviruses using reassortants between striped jack nervous necrosis virus and sevenband grouper nervous necrosis virus2004

    • Author(s)
      Iwamoto T.
    • Journal Title

      J. Virology 78

      Pages: 1256-1262

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] In vivo and in vitro analysis of the resistance against viral haemorrhagic septicaemia virus in Japanese flounder (Paralichthys olivaceus) precedingly infected with aquabirnavirus2004

    • Author(s)
      Pakingking R. JR.
    • Journal Title

      Fish & Shellfish Immunology 17

      Pages: 1-11

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] PCR-based detection of betanodaviruses from asymptomatic cultured and wild marine fish2004

    • Author(s)
      Gomez D.K.
    • Journal Title

      J. Fish Diseases 27

      Pages: 603-608

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Identification of host-specificity determinants in betanodaviruses using reassortants between striped jack nervous necrosis virus and sevenband grouper nervous necrosis virus.2004

    • Author(s)
      Iwamoto T., Y.Okinaka, K.Mise, K.Mori, M.Arimoto, T.Okuno, T.Nakai
    • Journal Title

      J. Virol. 78

      Pages: 1256-1262

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] In vivo and in vitro analysis of the resistance against viral haemorrhagic septicaemia virus in Japanese flounder (Paralichthys olivaceus ) precedingly infected with aquabirnavirus2004

    • Author(s)
      Pakingking R.JR, Y.Okinaka, K.Mori, M.Arimoto, K.Muroga, T.Nakai
    • Journal Title

      Fish & Shellfish Immunol. 17

      Pages: 1-11

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] PCR-based detection of betanodaviruses from asymptomatic cultured and wild marine fish.2004

    • Author(s)
      Gomez D K, J.Sato, K.Mushiake, T.Isshiki, Y.Okinaka, T.Nakai
    • Journal Title

      J. Fish Dis. 27

      Pages: 603-608

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] In vivo and in vitro analysis of the resistance against viral haemorrhagic septicaemia virus in Japanese flounder (Paralichthys olivaceus) precedingly infected with aquabirnavirus2004

    • Author(s)
      Pakingking R.jr.
    • Journal Title

      Fish & Shellfish Immunology 17

      Pages: 1-11

    • Related Report
      2004 Annual Research Report
  • [Journal Article] PCR-based detection of betanodaviruses from cultured and wild marine fish with no clinical signs2004

    • Author(s)
      Gomez D.K.
    • Journal Title

      J.Fish Diseases 27

      Pages: 603-608

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Mortality of wild golden grey mullet (Liza auratus) in Iranian waters of the Caspean Sea, associated with viral nervous necrosis-like agent.

    • Author(s)
      Zorriehzahra M.J., T.Nakai, I.Sharifpour, D.K.Gomez, C.S.Chi, M.Soltani, H.Hj.Mohd Daud, M.Sharif Rohani, A.A.Saidi
    • Journal Title

      Iran. J. Fish. Sci. 4

      Pages: 43-58

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Patent(Industrial Property Rights)] 不活化ベータノダウイルスワクチンおよび予防方法2004

    • Inventor(s)
      中井敏博, 山下浩史, 黒田 丹
    • Industrial Property Rights Holder
      中井敏博, 愛媛県, (財)日本生物科学研究所
    • Industrial Property Number
      2004-147988
    • Filing Date
      2004-05-18
    • Related Report
      2004 Annual Research Report

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Published: 2004-04-01   Modified: 2016-04-21  

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