Figure 2. The expression of circRNA reads during postnatal development in the rat retina. A: Classification of the reads during early development in the rat retina. B: Classification of the origins of the circular RNA (circRNA) species during early development. C: Distribution of the total circRNA species at time points P3, P7, and P12. D: Distribution of the circRNA species after filtration (>twofold change, false discovery rate (FDR)≤0.001 for P3 versus P7 and P7 versus P12) at P3, P7, and P12.