Fig. 3From: Genomic mutational analysis of the impact of the classical strain improvement program on β–lactam producing Penicillium chrysogenum Comparison of secondary metabolite gene expression in strains NRRL1951, Wisconsin 54-1255, DS17690 and DS68530. Expression data was obtained with RNA isolated after 5 days of fungal growth. The error bars indicate the standard error of the mean of two biological samples including technical duplicatesBack to article page