All strains were cultivated in potato dextrose liquid medium under shaking at 180
rpm at 28°C for 20 days. Mycelia were collected by careful filtration, and genomic DNA was
extracted with the cetyltrimethylammonium bromide (CTAB) protocol (Xu and Leslie, 1996).
The primers ITS1/ITS4 were synthesized and the ITS regions of rDNA were obtained by polymerase chain reaction (PCR) amplification (Cooke et al., 2000). The sequences were identified
by BGI-Shenzhen and deposited in the GenBank database.