Fig. 2From: Emergence of mosaic recombinant strains potentially associated with vaccine JXA1-R and predominant circulating strains of porcine reproductive and respiratory syndrome virus in different provinces of ChinaPhylogenetic tree of 28 strains isolated in this study and other 623 PRRSV strains. Lineage 9 is highlighted in green. Sublineages 10.1–10.8 are highlighted in sandy brown, light blue, purple, blue, light green, deep sky blue, red, and pink, respectively. The representative strains in lineages or sublineages are labeled with black circles (●) and the 28 strains isolated in this study are labeled with black triangles (▲). In sublineage 10.7, 10 isolates (15ZJ2, 15ZJ3, 15HUN3, 15LN2, 15JX2, 15JX3, 15JX4, 15HEN3, 15SC1, and 15SC2) from the present study were identified as potential vaccine JXA1-R-like strains with a 30-aa deletion in Nsp2Back to article page