yolk sacという言葉は
①Figure1-cのブルーの四角の説明にEmbryo+placenta+yolk sac
②同上リジェンドにc, Percentages of fetuses in which injected cells contributed only to the embryonic portion (red) or also to placental and yolk sac tissues (blue). ***P < 0.001 with Fisher’s exact test.
③Extended Data Figure1-bの写真の上2枚のキャプチャーにYolk sac
④同上cの写真のタイトルにSTAP chimaeric yolk sac
⑤同上リジェンドのすべてにa, Chimaeric mouse with STAP cells derived from CD45+ cells of B6GFP × 129/Sv mice (B6GFP, C57BL/6 line with cag-gfp transgene). Arrows indicate a placenta and a yolk sac. b, Cross-sections of yolk sac (top) and placenta (bottom). GFP-positive cells (arrows) were seen only in yolk sac and placenta of the STAP cell chimaera. Scale bars, 50 μm. c, Co-immunostaining showed that these GFP-positive cells (right) were found in the extra-embryonic endoderm-derived epithelial cells (pan-cytokeratin+ and overlying laminin+ basement membrane; left) of the yolk sac. Scale bar, 10 μm.