Table 2. List of fungal OTU pairs that displayed segregated or aggregated patterns when each host plant species was analyzed independently (Test 1).

Pair of OTUs				C or T score	P	FDR§
IDs (Taxonomic information)†
Q. serrata
Segregation (C score analysis)
757	(class: Leotiomycetes)	167	(genus: Cenococcum)*	0.679	0.0042	1.000
Aggregation (T score analysis)
509	(genus: Russula)*	115	(phylum: Ascomycota)	0.072	0.0010	0.300
193	(genus: Russula)*	115	(phylum: Ascomycota)	0.133	0.0016	0.300
331	(family: Herpotrichiellaceae)	185	(genus: Russula)*	0.075	0.0034	0.409
Q. glauca
Aggregation (T score analysis)
331	(family: Herpotrichiellaceae)	205	(genus: Lactarius)*	0.115	0.0007	0.124
375	(subkingdom: Dikarya)	203	(class: Leotiomycetes)	0.093	0.0024	0.154
199	(phylum: Ascomycota)	1845	(order: Helotiales)	0.150	0.0030	0.154
115	(phylum: Ascomycota)	1135	(genus: Russula)*	0.092	0.0038	0.154
193	(genus: Russula)*	115	(phylum: Ascomycota)	0.131	0.0043	0.154

Legend: The significance of C or T scores was examined based on a randomization test for each pair of fungal OTUs (100,000 permutations).

^†For each fungal OTU, taxonomic information based on the QCauto method is shown. Asterisks indicate possibly ectomycorrhizal OTUs.

^§Adjusted P values (FDR control).