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(A) DAPI-stained chromosomes(B) Hybridization pattern with probe derived from gDNA of Heterotis niloticus (green); (C) Hybridization pattern with probe derived from with gDNA of Arapaima gigas (red); (D) Superposition of both gDNA probes showing the shared sequences between the species. Chromosomes were counterstained with DAPI (blue). Bar = 5 μm.
