Table 1

Haplotype	B3_a	B3_b	B5	B8	B9_a	B9_b	B9_c	B10_a	B10_b	BE5	BE10
1	1	0	1	1	1	1	0	0	0	0	0
2	1	0	1	1	1	0	1	1	0	0	0
3	1	0	1	1	1	0	0	1	1	0	0
4	1	0	1	1	1	0	0	1	0	0	0
5	1	0	1	1	0	1	0	1	0	0	0
6	1	0	1	1	0	1	0	0	0	0	0
7	1	0	1	1	0	0	1	1	0	1	1
8	1	0	1	1	0	0	1	1	0	1	0
9	1	0	1	1	0	0	1	1	0	0	0
10	1	0	1	1	0	0	1	0	1	0	0
11	1	0	1	1	0	0	0	1	1	0	0
12	0	1	1	1	0	1	0	1	0	0	0
13	0	1	1	1	0	0	1	1	0	1	1
14	0	1	1	1	0	0	1	1	0	0	0
15	1	0	1	1	0	0	1	0	0	0	1
16	1	0	1	1	0	0	1	0	0	0	0
17	1	0	0	1	1	0	1	1	0	0	0
18	1	0	0	0	0	1	0	1	0	0	0
19	0	1	1	1	1	1	0	1	1	0	0
20	0	1	1	1	0	1	0	1	0	1	1
21	0	1	1	1	0	0	1	0	0	0	0

Table 1: Haplotypes of Mal de Rio Cuarto virus (MRCV) determined by the presence or absence of the bands formed by the genomic segments and two extra-genomic bands BE5 and BE10 recorded in the electrophoretic profiles determined by electrophoretic migration of viral dsRNA present in samples from naturally infected grasses.