Table 1. Number of Spongospora subterranea f.sp. subterranea samples collected, genotyped and sequenced, sorted by geographical region.
| Region | Specified as | Countries | No. of samples | No. of genotyped samples | No. of sequenced samples |
| Europe | Introduced | Switzerland, Germany, Netherlands, Norway, Sweden, Scotland, Iceland | 215 (8)a | 215 | 69 |
| Africa | South Africa | 57 (0) | 57 | 12 | |
| Asia | South Korea, Japan, Pakistan, Sri Lanka | 98 (6) | 98 | 38 | |
| Australasia | Australia, New Zealand | 170 (3) | 170 | 40 | |
| North America | United States | 26 (0) | 26 | 11 | |
| South America | Native | Colombia, Venezuela, Peru, Ecuador | 93 (39) | 127 | 132 |
| Total | 659 (56) | 693 | 302 |
a
Number of root gall samples in brackets.