Functional conservation between Drosophila and human blood cells. A: Summary of expression of Drosophila genes and their human homologs. B–D: tSNE feature plots of Drosophila blood scRNA-seq data. E–G: tSNE feature plots of human blood scRNA-seq data (peripheral blood mononuclear cells (Zheng et al., 2017)). B and E: Representing expression of Aldh (B), fly plasmatocyte cluster bounded by dashed blue line; and, its human homolog ALDH2 (E), CD14+ monocytes (CD14+ mono) and dendritic cells (DC) clusters indicated. C, D, F and G: Representing expression of CG30088 (C) and CG30090 (D), fly thanacytes cluster bounded by dashed blue line; and, their human homologs GZMB (F) and GZMH (G), respectively, natural killer cell and CD8+ (cytotoxic) T cell clusters indicated.