Complete genome sequence of an isolate of a novel genotype of yellow head virus from Fenneropenaeus chinensis indigenous in China.

Arch Virol

Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.

Published: April 2017

AI Article Synopsis

  • A new genotype of yellow head virus (YHV-8) was identified, but its complete genome sequence was previously unreported.
  • The study sequenced the genome of the YHV-8 isolate 20120706 from Hebei, China, revealing it is 26,769 nucleotides long with three open reading frames (ORFs).
  • The isolate shares 79.7-83.9% nucleotide identity with existing YHV genomes and confirms the existence of a new genotype, providing a valuable resource for future research on the virus's epidemiology and evolution.

Article Abstract

Genotype 8 of yellow head virus (YHV-8) was identified recently, but the complete genome sequence of this new genotype has not been reported. In this study, the complete genome of YHV-8 isolate 20120706 collected from Hebei Province of China in 2012 was sequenced. It was found to be 26,769 nucleotides (nt) in length, including a 20,060-nt open reading frame 1 (ORF1), a 435-nt ORF2, and a 4971-nt ORF3. Isolate 20120706 shared 79.7-83.9% nucleotide sequence identity with all seven of the complete genome sequences of YHV that have been reported so far. The topology of a phylogenetic tree constructed based on the ORF1b region clearly showed that strain 20120706, together with five other YHV-8 strains isolated in China, represents a new genotype of YHV. This is the first report of the complete genome sequence of a YHV-8 isolate, and the 20120706 isolate will be useful for further analysis of the epidemiology and evolution of YHV-8.

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http://dx.doi.org/10.1007/s00705-016-3203-2DOI Listing

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