Figure 1From: Genome sequencing of the Trichoderma reesei QM9136 mutant identifies a truncation of the transcriptional regulator XYR1 as the cause for its cellulase-negative phenotypePedigree of the cellulase-negative strain QM9136. UV light and chemical mutagenesis programs of the NATICK [3,4,9] and RUTGERS [27] series lead to the selection of T. reesei strains with improved (+) or impaired (−) cellulase production. Adapted with permission from [2].Back to article page