Figure 1. DNA fragments amplified from the primer pair Rsv1-f/r (Lanes 1–8) on 1.3% agarose gel. 1, Essex (rsv); 2, PI 96983 (Rsv1); 3, Marshall (Rsv1-m); 4, York (Rsv1-y); 5, Raiden (Rsv1-r); 6, Kwanggyo (Rsv1-k); 7, Ogden (Rsv1-t); and 8, Suweon 97 (Rsv1-h). Lane M is a 100-bp molecular-weight marker.