Fig. 1From: Revisiting the taxonomical classification of Porcine Circovirus type 2 (PCV2): still a real challengePhylogenetic trees reconstructed using Neighbor Joining (a) and Maximum likelihood (b) methods based on the ORF2 database after removing the recombinant strains detected by RDP. Bootstrap support has been reported using gray scale ranging from white (i.e. bootstrap support = 0) to black (i.e. bootstrap support = 1)Back to article page