DNA amplification and sequence analyses
Table 3 lists the primers (Integrated DNA Technologies) used for PCR amplification of the respective genes. Primers AmyA-L + AmyA-R were based on the cDNA sequence of the Aspergillus kawachii amylase gene [GenBank: AB008370], while the GlaA-L + GlaA-R primers were based on the cDNA sequences of the Aspergillus shirousami glucoamylase gene [GenBank: D10460 and E02366]. The A. tubingensis species was verified with PCR amplification of the internal transcribed spacer (ITS) region of its genomic DNA using the universal ITS1 and ITS4 primers [27].