Fig. 1.
The SGET reporter for tracking cell fate transitions toward PGCs. a Single-cell RNA-seq analysis showing reciprocal gene expression patterns of endogenous Stella and Esg1 during early development (ICM; E3.5 or Epiblast; E6.5) and in primordial germ cells (PGC). b Chimera and tetraploid complementation assays confirm faithful expression of the Stella-GFP (green) and Esg1-tdTomato (red) SGET reporter during early development and in PGCs. c Representative FACS analysis of SGET activation during in vitro cell fate transitions of ESC into EpiLC and subsequently PGCLC. d Representative images of impaired PGCLC induction from Blimp1−/− SGET ESC. Numbers indicate percentage of SG+ETlow PGCLC at day 5 as determined by FACS. Scale bar(s): 200 µm