Amino acid sequence alignment of the putative capsid protein (ORF2) of the PCV2b cluster from this study. Deletions are indicated by hyphens. Identical sequences are doted. The arrow points at position 88-89. The circled portion denotes the mutations at the stop codon of the putative capsid protein resulting in a lysine (K) residue elongation at the C terminus of the ORF2 [26, 28].