Fig 3 in Is repeated cypermethrin fumigation dangerous for the mitochondrial DNA in dry insect samples?

Fig 3. Quality of PCR products of all 128 samples used in this study (barcoding region of the cytochrome oxidase I) checked on the 1% agarose gel in the horizontal electrophoresis. A1–D1 – run I. A1 – Oxythyrea funesta (fumigated samples), B1 – O. funesta (negative control), C1 – Supella longipalpa (fumigated samples), D1 – S. longipalpa (negative control). A2–D2 – run II (same legend as in run I). L = DNA ladder, N = negative control for PCR, P = positive control for PCR. Numbers of samples are abbreviation of musem IDs (NMPC-GAS-00XX, XX = numbers used in this figure). Red number = weak or not working sample.