Genome sequencing and analysis of foot-and-mouth disease virus Asia1/YNBS/58 strain / 病毒学报

ABSTRACT

The full-length genomic sequence of foot-and-mouth disease virus (FMDV) Asia1/YNBS/58 strain was determined by RT-PCR and compared with other 17 reference strains. The results showed that the complete genome of Asia1/YNBS/58 was 8164nt long including a 1061-nt 5' untranslated region (UTR), a 6990-nt open reading frame (ORF), and a 113-nt 3'UTR. The homology analysis indicated that the UTR regions and non-structural proteins were more conserved than the structural proteins in FMDV. VP1 exhibited the lowest conservation and VP4 was exceptionally conserved. The VP1-, VP2-, and VP3-based phylogenetic trees were divided into distinct clusters according to different serotypes, while the other gene-based phylogenetic trees exhibited some degree of intercross among serotypes. This study is the first description of the full-length genomic sequence of FMDV Chinese serotype Asia1.