Fig. 3From: DNA analysis of molluscs from a museum wet collection: a comparison of different extraction methodsComparison of PCR success in percent for the three different primer sets tested (COI-lf, 16S-sf, COI-sf) between the two extraction kits (Promega-THK/Gen-ial-ATK) and three time periods; *–statistically significant, Chi square test; significance level p = 0.05Back to article page