DNA was extracted and purified from fresh mycelium using the "Wizard® Magnetic DNA Purification System for Food" kit (Promega) according to the manufacturer's protocol.
Phylogenetic relationships were investigated by amplifying and sequencing the housekeeping genes translation elongation factor 1-α (TEF), calmodulin (CAL) and βtubulin (TUB). Fragments of TEF gene were amplified using the primer pair EF1 and EF2 2000) and the TUB gene were amplified using the primers Bt2a and Bt2b (Glass & Donaldson 1995) . Before sequencing, PCR products were purified with the enzymatic mixture EXO/FastAP (Exonuclease I, FastAP thermosensitive alkaline phosphatase, Thermo Scientific). Sequence reactions were performed using a BigDye Terminator v3.1 Cycle Sequencing Ready Reaction Kit for both strands, after which they were purified by gel filtration through Sephadex G-50 (5%) (Sigma Aldrich), before they were analyzed on the 3730 DNA Analyzer (Applied Biosystems).
Phylogenetic relationships were investigated by amplifying and sequencing the housekeeping genes translation elongation factor 1-α (TEF), calmodulin (CAL) and βtubulin (TUB). Fragments of TEF gene were amplified using the primer pair EF1 and EF2 2000) and the TUB gene were amplified using the primers Bt2a and Bt2b (Glass & Donaldson 1995) . Before sequencing, PCR products were purified with the enzymatic mixture EXO/FastAP (Exonuclease I, FastAP thermosensitive alkaline phosphatase, Thermo Scientific). Sequence reactions were performed using a BigDye Terminator v3.1 Cycle Sequencing Ready Reaction Kit for both strands, after which they were purified by gel filtration through Sephadex G-50 (5%) (Sigma Aldrich), before they were analyzed on the 3730 DNA Analyzer (Applied Biosystems).