Fig. 2.

scRNA-seq analysis shows that postnatal AT1 cells continue to differentiate from P3 to P60. (A) The clustering of genes from randomly picked 1,000 AT1 cells of P3, P15, and P60 lungs. Differentially expressed genes (Dataset S2) can be clustered into five groups according to their expression patterns from P3 to P60. (B and B′) Selected GO terms of genes in group I genes (B) and genes in groups III, IV and V (B′). (C) Density plots of selected genes in group I. In the density plot, x-axis represents the gene expression level, and y axis represents the density of numbers of cells. (D) Density plots of selected genes in groups III, IV and V.