Adachi, K., Sumiyoshi, K., Ariyasu, R., Yamashita, K., Zenke, K., and Okinaka Y. (2010) Susceptibilities of medaka (Oryzias latipes) cell lines to a betanodavirus. Virol. J. 7:150.

Hata, N., Okinaka, Y., Iwamoto, T., Kawato, Y., Mori, K., and Nakai, T. (2010) Identification of RNA regions that determine temperature sensitivity in betanodaviruses. Arch. Virol. 155:1597-1606.

Fukuzawa, N., Tabayashi, N., Okinaka, Y., Furusawa, R., Furuta, K., Kagaya, U., Matsumura, T. (2010) Production of biologically active Atlantic salmon interferon in transgenic potato and rice plants. J. Biosci. Bioeng. 210:201-207.

Gomez, D. K., Mori, K., Okinaka, Y., Nakai, T., and Park, S. C. (2010) Trash fish can be a source of betanodaviruses for cultured marine fish. Aquaculture. 302:158-163.

Sugaya, T., Mori, K., Nishioka, T., Masuma, S., Oka, M., Mushiake, K., Okinaka Y., and Nakai T. (2009) Genetic heterogeneity of betanodaviruses in juvenile production trials of Pacific bluefin tuna, Thunnus orientalis (Temminck & Schlegel). J. Fish Dis. 32:815-823. PDF

Gomez, D. K., Matsuoka, S., Mori, K., Okinaka, Y., Park, S. C., and Nakai, T. (2009) Genetic analysis and pathogenicity of betanodavirus isolated from wild redspotted grouper Epinephelus akaara with clinical signs. Arch. Virol. 154:343-346. PDF

Okinaka, Y., and Nakai, T. (2008) Comparisons among the complete genomes of four betanodavirus genotypes. Dis. Aquat. Org. 80: 113-121. ABSTRACT

Ito, Y., Okinaka, Y., Mori, K., Sugaya, T., Nishioka, T., Oka, M., and Nakai, T. (2008) The variable region of RNA2 is sufficient to determine host specificity in betanodaviruses. Dis. Aquat. Org. 79:199-205. ABSTRACT

Sakamoto, T., Okinaka, Y., Mori, K., Sugaya, T., Nishioka, T., Yamashita, H., Oka, M., and Nakai, T. (2008) Phylogenetic analysis of betanodavirus RNA2 identified from wild marine fish in oceanic regions. Fish Pathol. 43:19-27. PDF

Hata, N., Okinaka, Y., Sakamoto, T., Iwamoto, T., and Nakai, T. (2007) Upper temperature limits for the multiplication of betanodaviruses. Fish Pathol. 42:225-228. PDF

Furusawa, R., Okinaka, Y., Uematsu, K., and Nakai, T. (2007) Screening of freshwater fish species for their susceptibility to a betanodavirus. Dis. Aquat. Org. 77:119-125. ABSTRACT

Furusawa, R., Okinaka, Y., and Nakai, T. (2006) Betanodavirus infection in the freshwater model fish medaka (Oryzias latipes). J. Gen. Virol. 87:2333-2339. PDF

Okinaka, Y., Perna, N. Yang, S., Keen, N. T., and Yang, C. H. (2006) Identification of potential virulence genes in Erwinia chrysanthemi 3937; Transposon insertion into plant up-regulated genes. J. Gen. Plant Pathol. 72:360-368.

Pakingking R., Mori, K., Sugaya, T., Oka, M., Okinaka, Y., and Nakai, T. (2005) Aquabirnavirus-induced protection of marine fish against piscine nodavirus infection. Fish Pathol. 40:125-131.

Iwamoto, T., Mise, K., Takeda, A., Okinaka, Y., Mori, K., Arimoto, M., Okuno, T., and Nakai, T. (2005) Characterization of Striped jack nervous necrosis virus subgenomic RNA3 and biological activities of its encoded protein B2. J. Gen. Virol. 86:2807-2816. PDF

Gomez, D. K., Sato, J., Mushiake, K., Isshiki, T., Okinaka, Y., and Nakai, T. (2004) PCR-based detection of betanodaviruses from cultured and wild marine fish with no clinical signs. J. Fish Dis. 27:603-608. PDF

Pakingking, Jr., R., Okinaka, Y., Mori, K., Arimoto, M., Muroga, K., and Nakai, T. (2004) In vivo and in vitro analysis of the resistance against viral haemorrhagic septicaemia virus in Japanese flounder (Paralichthys olivaceus) precedingly infected with aquabirnavirus. Fish Shellfish Immuno. 17:1-11. PDF

Iwamoto, T., Okinaka, Y., Mise, K., Mori, K., Arimoto, M., Okuno, T., and Nakai, T. (2004) Identification of host-specificity determinants in betanodaviruses using reassortants between striped jack nervous necrosis virus and sevenband grouper nervous necrosis virus. J. Virol. 78:1256-1262. PDF