Fig. 2.

Phylogenetic analysis of astroviruses. a Phylogenetic tree based on a partial RdRp coding region (about 300 nt) using the neighbor–joining method with p-distances and 1000 bootstrap replicates; values >50% are shown. b Tree based on the complete ORF2 coding region of strain CC12 (about 800 aa). Selected representative astroviruses from the genera Mamastrovirus and Avastrovirus are depicted with their corresponding GenBank accession numbers. Novel PoAstV 5 strains characterized in the present study are boxed