Detection of infectious hypodermal and hematopoietic necrosis virus (IHHNV, decapod Penstylhamaparvovirus 1) in commodity red claw crayfish (Cherax quadricarinatus) imported into South Korea

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Title
Detection of infectious hypodermal and hematopoietic necrosis virus (IHHNV, decapod Penstylhamaparvovirus 1) in commodity red claw crayfish (Cherax quadricarinatus) imported into South Korea
Author(s)
C Lee; S K Choi; H J Jeon; S H Lee; Y K Kim; S Park; J K Park; S H Han; S Bae; Ji Hyung Kim; J E Han
Bibliographic Citation
Journal of Marine Science and Engineering, vol. 9, no. 8, pp. 856-856
Publication Year
2021
Abstract
Freshwater crayfish, which are cultivated in aquaculture, are economically important for food and ornamental purposes. However, relatively few studies have focused on potentially pathogenic viruses in crayfish compared to in penaeid shrimp. Commodity red claw crayfish (Cherax quadricarinatus; 400 crayfish in 10 batches) and red swamp crayfish (Procambarus clarkii; 40 crayfish in 2 batches) imported into South Korea from Indonesia and China were screened by PCR to detect infectious hypodermal and hematopoietic necrosis virus (IHHNV or Decapod penstylhamaparvovirus 1). IHHNV was detected in tissue samples pooled from nine out of ten batches of red claw crayfish imported from Indonesia. Phylogenetic analysis of PCR amplicons from representative pools clustered the IHHNV strain with infectious-type II sequences commonly detected in Southeast Asian countries rather than with type III strains detected previously in whiteleg shrimp (Penaeus vannamei) cultured in South Korea. IHHNV DNA was detected most frequently in the muscle (eight batches, 66.7% samples), followed by in the hepatopancreas (five batches, 41.7% samples) and gills tissue (three batches, 25.0% samples). These data suggest that red claw crayfish could be a potential carrier of the virus and that quarantine procedures must be strengthened in South Korea to avoid importing infectious types of IHHNV in commodity crustaceans such as red claw crayfish.
Keyword
Infectious hypodermal and hematopoietic necrosis virusInfectious typeRed claw crayfishType IIReservoir
ISSN
2077-1312
Publisher
MDPI
DOI
http://dx.doi.org/10.3390/jmse9080856
Type
Article
Appears in Collections:
Division of Research on National Challenges > Infectious Disease Research Center > 1. Journal Articles
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