Figure 7. Isolated Sox9-EGFP cell populations from young and old mice are enriched for known biomarkers associated with specific population. Sox9-EGFP cell populations isolated using FACS underwent high throughput qRT-PCR for the genes (A) Sox9, (B) ChgA, (C) Lgr5, (D) Hopx. n≥3 animals per group, #p<0.05 compared to all other Sox9-EGFP populations, 1-way ANOVA, Bonferroni. n=4 per group.