Pure cultures of isolates were grown on PDA plates for 5 days at 28 °C prior to DNA extraction. DNA was extracted from cultures using the CTAB method42. Fungal 28S rRNA genes were amplified using the primers LR0R/LR743. Fungal ITS1-5.8S rRNA-ITS2 genes were amplified with the primers ITS1/ITS444. PCR reaction mixtures consisted of a total volume of 50 μL containing: 1~2 μL of genomic DNA, 5 μL of 10× Reaction Buffer, 4 μL of 2.5 mM dNTP mix, 2 μL of 10 μM ITS1 primer, 2 μL of 10 μM ITS4 primer, 0.5 μL of 5 U/μL Transtaq-T DNA polymerase (TransGen Biotech), and ddH2O to 50 μL. PCR products were sequenced by GENEWIZ (Beijing, China), and sequence identities were analysed using the National Center for Biotechnology Information (NCBI) BLAST program (https://blast.ncbi.nlm.nih.gov/Blast.cgi) and the GenBank database. Each isolate was compared against known taxa present in the database. Phylogenetic analyses were conducted using the Molecular Evolutionary Genetics Analysis software (MEGA, v. 6.06) using the neighbour-joining method. Confidence in tree topology was estimated using the bootstrap method (1,000 bootstrap replicates).