Figure 2From: Molecular investigation of Torque teno sus virus in geographically distinct porcine breeding herds of Sichuan, ChinaThe number of transitions (×) and transversions (∆) versus of the genetic distance calculated with the TN93 among all pairwised strains of TTSuV1 (A) and 2 (B). Solid lines indicate the best fit found in each mutational type. The “s”and “v” represented the number of transitions (×) and transversions (∆), respectively.Back to article page