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DAPI-stained nuclear behavior in eggs after fertilization in the control. A (10 min after fertilization; af): three condensed nuclei, sperm nucleus (sn), egg nucleus (en) and second polar body nucleus (2 pb); B (20 min af) two decondensed pronuclei, female pronucleus (fpn) and male pronucleus (mpn); C (30 min af) decondensed and fused one pronucleus; D (40 min af) anaphase of the first cleavage. Scale bars denotes 10 μm.
