Table 2. Genetic diversity parameters of Spongospora subterranea f.sp. subterranea within the sampled regions, determined using six microsatellite markers.

Region	Na	cnumb	ssgc	cfd	Ge	Hf	IA g
Europe	215	26	11	0.88	0.885	0.225	0.0339***
Africa	57	21	13	0.63	0.917	0.234	0.0144ns
Asia	98	16	7	0.84	0.835	0.249	0.0673***
Australasia	170	16	2	0.91	0.878	0.21	0.0131***
North America	26	3	1	0.89	0.151	0.013	na
Total Introduced	566	49	34	0.91	0.91	0.235	0.0205**
South America Root galls	39	29	26	0.23	0.983	0.391	0.0630**
South America Tuber lesions	88	55	54	0.38	0.972	0.314	0.0269*
Total Native	127	82	81	0.35	0.985	0.461	0.1138***

^aN = Sample size.

^bcnum = Number of multilocus genotypes.

^cssg = Site-specific genotypes; clones specific to a region and not shared with other regions.

^dcf = Clonal fraction; proportion of individual samples originating from asexual reproduction.

^eG = Nei’s corrected diversity (genotypic diversity).

^fH = Nei’s Gene Diversity.

^gI_A = Index of association to tests the null hypothesis of linkage equilibrium for multilocus data. Significance of deviation from equilibrium expectations are indicated by asterisks. *, p<0.05, **, p<0.01, ***, p<0.001; ns = non-significant; na = not enough diversity for estimation.