Genotype analysis of the two parental TSWV isolates and six reassortants. Lane MK contains 1 Kb DNA marker. D and R indicate TSWV-D and RG2, respectively. L, M, and S indicate amplified fragments from nucleotides 28 to 895 of L RNA digested by TaqI, amplified fragments from nucleotides 3050 to 4037 of M RNA digested by MseI, and amplified fragments from nucleotides 70 to 890 of S RNA digested by TaqI, respectively.