Table 2.
The most frequent OTUs.
| OTU1 | Taxonomic affinity | SS2 | #C3 | #RS (#ML)4 | Sub-localities5 |
|---|---|---|---|---|---|
| 6 | Cenococcum geophilum | 100% | 34 | 11 (4) | F1,F2,F3,N2,S3,T1,T2 |
| 4 | Phialocephala fortinii | 100% | 34 | 10 (4) | F1,F3,N3,S2,S3,T1,T2,T3 |
| 28 | Cadophora finlandia1 | 98% | 13 | 7 (4) | F3,N1,N3,S2,S3,T2,T3 |
| 8 | Cortinarius aff. inconspicuus/diasemospermus | 99% | 20 | 6 (3) | F1,F2,F3,N1,N2,S3 |
| 22 | Tomentella sp.1 | 92% | 8 | 4 (3) | F2,F3,N1,S1 |
| 67 | Caloplaca sp. | 91% | 4 | 3 (3) | N3,S3,T1 |
| 80 | Cadophora finlandia 2 | 98% | 12 | 5 (2) | S1,S2,S3,T3 |
| 83 | Mycenaceae 1 | 82% | 36 | 5 (2) | S2,T1,T2,T3 |
| 33 | Inocybaceae 1 | 82% | 12 | 3 (2) | F3,N2 |
| 2 | Hebeloma aff. alpinum | 99% | 11 | 3 (2) | F1,N1,N2 |
| 39 | Tomentella sp.2 | 94% | 9 | 3 (2) | N1,N3,S1 |
| 43 | Tomentella sp.3 | 95% | 13 | 2 (2) | N1,S1 |
| 61 | Cortinarius aff. polaris | 100% | 13 | 2 (2) | N3,S3 |
| 30 | Tomentella sp.7 | 95% | 3 | 2 (2) | F3,S1 |
| 63 | Hymenoscyphus sp. | 91% | 3 | 2 (2) | N3,S1 |
| 57 | Leohumicola sp. | 94% | 2 | 2 (2) | N2,T1 |
| 76 | Russula delica | 100% | 31 | 4 (1) | S1,S2,S3 |
| 48 | Cadophora sp. | 96% | 5 | 4 (1) | N1,N2,N3 |
| 47 | Cortinarius aff. tenebricus | 100% | 11 | 2 (1) | N1,N3 |
| 40 | Tomentella sp.4 | 93% | 4 | 2 (1) | N1,N2 |
The 20 most frequently detected OTUs and their distribution across the five main localities.
1OTU number (see Additional files 2 and 3). 2Sequence similarity (SS) to best Blast match (GenBank/UNITE or own reference sequence). 3The number of clones (C) observed for the respective OTU. 4Number of root systems (RS), and number of main localities (ML) in brackets. 5Main localities; Finse (F), Longyearbyen (S), Ny-Ålesund (N), and Tromsø (T). Sub-localities indicated by numbers 1-3.