Phylogenetic tree constructed based on the deduced amino acid sequences of the VP7 genes of G1 strains.

<p>Bhutanese strains are indicated by black squares, which are followed by the strain numbers. Human rotavirus KH210 (G5) was used as an outgroup. The numbers adjacent to nodes represent the bootstrap values; values <70% have not shown. The scale bar shows the genetic distance, which is expressed as amino acid substitutions per site. The DNA Data Bank of Japan/European Molecular Biology Laboratory/GenBank accessions numbers are: AB905455 (rotavirus strain BTN-23), AB905456 (BTN-64), AB905457 (BTN-55), AB905458 (BTN-126), AB905459 (BTN-43), AB905460 (BTN-132), AB905461 (BTN-27), and AB905462 (BTN-39).