Fig. 1. Representative two-dimensional FISH images showing chromosome territories within Landrace porcine spermatozoa. Whole-chromosome-painting probes were either labelled with digoxigenin and detected via anti-digoxigenin conjugated to fluorescein isothiocyanate (green) or to biotin and detected using strepavidin conjugated to Cyanine 3 (red). The sperm nuclei are counterstained with DAPI (blue). Bar, 5 µm.