Fig. S8
Mosaic knockdown of alk8 cell-autonomously generates ventral bud-derived β-cells. (A) Schematic diagram of the cell transplantation protocol. Tg (ins:GFP);Tg(ins:dsRed) donors were injected with cas/sox32 mRNA and alk8 splice-blocking MO along with Alexa Fluor 647 dextran (blue), and the donor cells were transplanted into Tg(ins:GFP);Tg(ins:dsRed) hosts. (B–C′) Confocal projections of Tg(ins:GFP)- and Tg(ins:dsRed)-expressing islets containing control (B and B′) and alk8 morphant (C–D′) donor cells (blue) at 60 hpf. Control donor cells incorporated into Tg(ins:GFP)- and/or Tg(ins:dsRed)-expressing β-cells without showing any preference. In contrast, alk8 morphant donor cells (blue) gave rise to many GFP-only–positive β-cells (arrows). For clarity, the green color is excluded in the corresponding Left panels (B–D). |