Table S1 Additional sampling from stump 1, stump 15 and neighboring stumps in year 2010

Stumpa / Sampling
pointb / Parallel samples
A / B / C
HetRV6 / HetRV4 / HetRV6 / HetRV4 / HetRV6 / HetRV4
1 / S1 / - / - / - / - / + (pa22-a) / + (pa1)
S2 / nd / nd / nd / nd / nd / nd
R1/39 / + (pa22-a) / - / nd / nd / nd / nd
R1/82 / - / - / - / - / nd / nd
R2/38 / + (pa22-a) / - / + (pa22-a) / - / nd / nd
R2/64 / + (pa22-a) / + (pa1) / + (pa22-a) / - / nd / nd
1A / S1 / nd / nd / nd / nd / nd / nd
S2 / nd / nd / nd / nd / nd / nd
1B / S1 / nd / nd / nd / nd / nd / nd
S2 / - / - / nd / nd / nd / nd
1C / S1 / - / - / + (pa22-a) / + (pa1) / + (pa22-a) / -
S2 / + (pa22-a) / - / + (pa22-a) / + (pa1) / nd / nd
15 / S1 / - / - / - / - / nd / nd
S2 / - / - / - / + (pa1) / - / + (pa1)
R1/37 / - / - / - / - / nd / nd
R1/66 / - / - / - / - / nd / nd
R2/34 / - / - / - / - / nd / nd
15A / S1 / nd / nd / nd / nd / nd / nd
S2 / nd / nd / nd / nd / nd / nd
15C / S1 / - / - / nd / nd / nd / nd
15D / S1 / - / - / - / - / - / -

a Stumps 1 and 15 had been inoculated with the virus-infected H. parviporum RT3.49C in year 2008, while stumps 1A, 1B , 1C, 15A, 15C and 15D are neighboring untreated stumps (Fig. 2). H. parviporum was not successfully isolated from stumps 1A and 15A

b Samples S1 and S2 were taken from the body of each stump, while R1 and R2 represent samples taken from two different stump roots (roots 1 and 2; Fig 2). The numerical value after the slash indicates the location of the sampling position on the root (‘39’ = 39 cm distance measured from the stump body). A, B and C indicate parallel isolates cultured from the same increment core; nd = not determined due to the absence of Heterobasidion or the presence of contaminants. Sample 1/S1/A indicates the H. parviporum isolate cultured from stump 1, core sample S1, parallel sample A