Southern analyses of basidiomycete I-62 genomic DNA digested with three restriction enzymes (PstI, ScaI, and SmaI) and hybridized with a heterologous probe from the basidiomycete PM1 lac1 laccase gene under low-stringency hybridization conditions (lanes 1), an lcc1-specific probe (lanes 2), an lcc2-specific probe (lanes 3), and an lcc3-specific probe (lanes 4). MWS, molecular sizes.