%0 Journal Article %A Fan, Jun %T Open reading frame structure analysis as a novel genotyping tool for hepatitis E virus and the subsequent discovery of an inter-genotype recombinant %D 2009 %J Journal of General Virology, %V 90 %N 6 %P 1353-1358 %@ 1465-2099 %R https://doi.org/10.1099/vir.0.009431-0 %I Microbiology Society, %X Accurate viral genotyping is important. Here I investigate genotypes in hepatitis E virus (HEV) and find that the open reading frame (ORF) structure (the lengths of three ORFs and the overlapping relationships among the ORFs) can be a good criterion for genotyping HEV. An inter-genotype recombinant (GenBank accession no. DQ450072) was revealed by analysing the ORF structure and confirmed by phylogenetic analyses. This discovery of the inter-genotype recombinant indicates that genotyping in HEV should be based on full-length sequences. The Mexican strain which is currently classified as a genotype 2 strain also exhibited the mosaic sequence pattern, although without statistical support. %U https://www.microbiologyresearch.org/content/journal/jgv/10.1099/vir.0.009431-0