Fig. 1
From: Molecular detection of Porcine astrovirus in Sichuan Province, China
Phylogenetic relationships between the RdRp genes (422 bp) of the porcine astrovirus sequences identified in this study (shown in bold and red) and in previous studies in China (bold and blue) and selected reference sequences (GenBank accession numbers shown with the taxa). The tree was constructed with the neighbor-joining method using the p-distance substitution model, with 1000 bootstrap replicates and a cut-off value of 70 %, with the MEGA 6.06 software. The scale bar represents the number of nucleotide substitutions per site