Extended Data Fig. 8: Blood, vascular, and PNS cells.
From: A lamprey neural cell type atlas illuminates the origins of the vertebrate brain

a, Subtree from the dendrogram of Fig. 1c displaying the expression of selected marker genes for each cell type (gene names mentioned in main text are highlighted in bold). b, Expression of marker genes for immune (GRN), meningeal (PDGFRA, PAH), and vascular (KDR) cells. c, Expression of lamprey markers and their mouse orthologs in the respective brain atlases (UMAPs). d, Coronal section of the larval telencephalon showing the spatial expression of the genes shown in b (same color code). Arrows mark leptomeningeal layers. e, Coronal section of the adult isthmic region (mesencephalon/rhombencephalon) showing the expression of SOXE1 and SOXE2 within cranial nerve roots (white arrows). See Supplementary Fig. 2 for ISS section schemes; scale bars, 500 μm.