Figure 2. Label PGC cells with GFP and luciferase. (A) PGCs were transduced with a lentivirus carrying luciferase and GFP reporters under a ubiquitous cytomegalovirus promoter. (B) The transduced cells were visualized as green fluorescent cells, and thus can be purified by flow cytometry based on GFP. (C) Representative transduced cells in culture before/after FACS. Scale bars are 20µm.