Genogroup I and II Picobirnaviruses in Respiratory Tracts of Pigs
Saskia L. Smits , Leo L.M. Poon, Marije van Leeuwen, Pui-Ngan Lau, Harsha K.K. Perera, Joseph S. Malik Peiris, James Simon, and Albert D.M.E. Osterhaus
Author affiliations: Erasmus Medical Center, Rotterdam, the Netherlands (S.L. Smits, A.D.M.E. Osterhaus); The University of Hong Kong, Hong Kong, People’s Republic of China (L.L.M. Poon, P.-N. Lau, H.K.K. Perera, J.S. Malik Peiris); Viroclinics Biosciences BV, Rotterdam (S.L. Smits, M. van Leeuwen, J.H. Simon, A.D.M.E. Osterhaus); University of Kelaniya, Kelaniya, Sri Lanka (H.K.K. Perera)
Figure A1. Neighbor-joining (Jukes-Cantor model) phylogenetic tree of an ≈165-bp fragment of the genogroup I picobirnavirus RNA-dependent RNA polymerase gene from known human, porcine, and wastewater genogroup I picobirnaviruses and newly characterized porcine respiratory genogroup I picobirnaviruses (sequences are available on request). Each branch represents a sequence or group of sequences (95% identical with gaps) depending upon the presence of a colored block. Every branch corresponds to the adjacent information, which indicates source, year of isolation, and location of virus variants. Reference sequences from published studies are identified by their GenBank accession numbers. For species, H, human; WW, wastewater; S, snake; D, dog; P; pig; R, rat. For countries of isolation, USA, United States; NL, the Netherlands; Br, Brazil; H, Hungary; A, Argentina; T, Thailand; In, India; V, Venezuela; Ch, People’s Republic of China. Sequences from newly identified porcine respiratory picobirnaviruses in this study are shown according to recent nomenclature proposals (7). Isolates in red are branches in which porcine respiratory picobirnaviruses are present. Scale bar indicates nucleotide substitutions per site.
The opinions expressed by authors contributing to this journal do not necessarily reflect the opinions of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.