Figure 1From: Molecular characterization of partial-open reading frames 1a and 2 of the human astroviruses in South KoreaPhylogenetic tree based on the partial sequences of open reading frame 1a amplified by the Mon340/348 primer pair. The outgroup, the partial-open reading frame 1a nucleotide sequence of the sheep astrovirus, was selected from the nucleotide sequence of sheep astrovirus (GenBank accession number, Y15937).Back to article page