Sample of nucleated galaxies used in this study. The symbol types differentiate between galaxies in Fornax (triangle), Virgo (hexagon), and other environments (diamond), whereas the colours show the different galaxy types: ellipticals (orange), spirals (green), lenticulars (S0 and SB0, purple), and dwarf irregulars and spheroidals (blue). The Fornax and Virgo sample only contains ETGs and lenticular galaxies. The NSC of the Milky Way (MW) is shown in cyan. The grey cross shows the mass uncertainties which we assume to be 0.3 dex. The different panels show the relation of NSC and GC system properties with the stellar mass of the host galaxy. We note that M_GC, min and M_GC, max are only available for Fornax and Virgo. The few outliers in the M_gal − M_GC,  max plane might be UCDs.