Gene expression analysis of neonatal ILC2s. (A) t-SNE plots showing expression of the indicated individual genes. (B) Heatmap shows the top genes that are differentially expressed (P ≤ 0.05) by adult (combined ILC2 subsets from Fig. 2 D) and neonatal ILC2s (combined ILC2 subsets from Fig. 7 D). The arrows point to the activation-associated genes Arg1, Il13, Il5, and Klrg1.