Fig. 1

Exemplary histograms of the relative nuclear DNA content of (a) Daucus aureus, (b) D. conchitae, (c) D. glochidiatus, (d) D. guttatus, (e) Caucalis platycarpos, and (f) Torilis arvensis. Asterisks indicate the internal standards: (a–b, d–e) Petunia hybrida ‘P × Pc6’ (2C = 2.85 pg), (c, f) Solanum lycopersicum ‘Stupicke’ (2C = 1.96 pg)