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Masuda Tsuneyuki |
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Identification of further diversity among posaviruses
Kaori Sano, Yuki Naoi, Mai Kishimoto, Tsuneyuki Masuda, Hitomi Tanabe, Mika Ito, Kazutaka Niira, Kei Haga, Keigo Asano, Shinobu Tsuchiaka, Tsutomu Omatsu, Tetsuya Furuya, Yukie Katayama, Mami Oba, Yoshinao Ouchi, Hiroshi Yamasato, Motohiko Ishida, Junsuke Shirai, Kazuhiko Katayama, Tetsuya Mizutani, Makoto Nagai
Recently, there have been reports of new members of posavirus-like viruses in the order Picornavirales. In this study, using a metagenomics approach, 11 posavirus-like sequences (>7,000 nucleotides) were detected in 155 porcine fecal samples. Phylogenetic analysis revealed that the newly identified virus sequences, together with other posavirus-like viruses, form distinct clusters within the order Picornavirales, composed of eight genogroups and unassigned sequences based on amino acid sequences of the helicase and RNA-dependent RNA polymerase regions, with <40 % and <50 % sequence identity, respectively. We propose further classifications of highly diverse posavirus populations based on newly identified sequences from Japanese pig feces.
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