Fig. 1.

Phylogenetic dendrogram constructed by maximum parsimony method based on nucleotide sequences of gene encoding NSP1 of bovine, porcine and human rotavirus strains. Bootstrap values for 1000 pseudoreplicates are shown. Strains N155 and I321 are identified by arrows. The host species of origin for distinct genetic lineages are indicated. The origin of the strain, accession number and strain name are given in columns 1–3. N155 and I321 are in the same lineage. There are 2 clusters within this lineage, one with bovine and porcine rotavirus strains more closely related to human strains than to other animal strains in separate lineages.