Fig. 4From: Germ cell and tumor associated piRNAs in the medaka and Xiphophorus melanoma modelsBoxplots of the abundance of piwil1 a, piwil2 b and tudor c measured by qPCR. In comparison to HP Piwil1 and Tudor are enriched in uveal melanoma (UM) and invasive melanoma (IM). Piwil2 is enriched in xanthoerythrophoroma (XE) and IM. All values are expressed relative to ef1a as referenceBack to article page