Wisoot Chanit, Aksara Thongprachum, Pattara Khamrin, Shoko Okitsu, Masashi Mizuguchi, and Hiroshi Ushijima
Figure 1. Phylogenetic tree of nucleotide sequences of sapovirus (SaV) strains (shown in boldface). The tree was constructed from partial nucleotide sequences of the capsid region by using PEC strain (a porcine SaV) as an outgroup. The numbers on each branch indicate the bootstrap values. Scale bar indicates nucleotide substitutions per position. GenBank accession numbers of reference strains are as follows: Osaka07-767/08/JP (AB433785), Osaka/19-115/07/JP (AB327280), Sydney3/04/AU (DQ104357), CU050202/05/HK (DQ155647), Angelholm/SW278/04/SE (DQ125333), Chiba/000671/99/JP (AJ786349), 18/DCC/Tokyo/43/JP (AB236378), Yak2/00/JP (AB046353), Ehime1596/99/JP (AM049952), CU050107/05/HK (DQ155646), CMH044/03/03/THA (EF600796), St.Pertersburg/8214/05/RUS (FJ214057), Karachi/730/92/PK (AB126249), Hou7-1181/90/USA (AF435814), Osaka/5836/04/JP(AB242324), Karachi/872/91/PK (AB181231), Sapporo/82/JP (U65427), Manchester/93/UK (X86560), 12/DCC/Tokyo/44/JP (AB235380), 4724/Osaka/02/JP (AB180212), Stockholm/318/97/SE (AF194182), Mex14917/00/USA (AF435813), Karachi/867/93/PK (AB181132), Parkville/94/UK (U73124), Houston/90/USA (U95644), Karachi/1017/90/PK (AB181227), Arg39/95/ARG (AY289803), Lyon/598/97/F (AJ271056), London/29845/92/UK (U95645), Mex340/90/USA (AF435812), Cruise ship/00/USA (AY289804), Karachi/874/92/PK (AB181129), Karachi/928/94/PK (AB181128), 4408/Maizuru/03/JP (AB180209), and PEC (AF182760).