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Figure 1
Figure 1
Derivation and characterization of cloned piglets from piPSCs. (A) Preimplantation and post-implantation development of the cloned embryos from piPSCs. Embryos at two-cell (a), four-cell (b), eight-cell (c), blastocyst stages (d, e) and two 36 day-old cloned fetuses (f) are shown. Scale bars are 100 μm. (B) The morphology and fluorescence of the hooves (left), tails (middle) and fibroblasts (right) of the 36 day-old embryos. Scale bars are 100 μm. (C) The morphology, fluorescence and hematoxylin/eosin-stained sections of tissues from piglet 00536-3#. Scale bars are 100 μm. (D) Cloned piglets. 00507-4# from differentiated iPF4-2 cell, 4 days old; 227-1#, 2#, 3# from undifferentiated iPF4-2, 2 days old. (E) Porcine ear fibroblasts (PEFs) from 00507-4#, EGFP positive. Scale bars are 100 μm. (F) PCR demonstrating genomic integration of Oct4, Sox2, and EGFP using tissues of the cloned fetuses and piglets. PEF, the original fibroblasts used to create iPF4-2. 00518, 00536, 00507, 227, foster mothers. 00518-1#, 00518-2#, the cloned fetuses derived from differentiated iPF4-2 cells. 00536-3#, 00507-4#, the cloned piglets derived from iPF4-2-differentiated cells. 227-1#∼4#, the HMC piglets derived from iPF4-2. (G) Microsatellite analysis of the donor piPSC line iPF4-2, cloned fetuses and piglets. 00518, 00536, 00507, 227, foster mothers; 00518-1# and 00518-2#, cloned fetuses; 00536-3# and 00507-4#, the cloned piglets from differentiated iPF4-2 cells; 227-1#∼4#, the cloned piglets derived from the Scriptaid-treated NT embryos from iPF4-2 cells.

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