Extended Data Fig. 9: Ependymoglial 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 OTX2 within the adult telencephalon. White arrows point to choroid plexus. c, Expression of KERA within the adult brain (sagittal section; anterior end to the left), showing its concentration in the hindbrain. d, Violin plot displaying KERA expression among ependymoglial cell types; color code as in a. e, f, Expression of FOXJ1 (e) and CCN1-5 (f) within the adult telencephalon. g, Horizontal section of the larval brain (anterior end to the upper left corner) showing the expression of SSPO (smFISH) around the rostral end of the third ventricle (sub-commissural organ). h, Expression of STMN4 (neurons) and HES5 (astrocytes) within the adult telencephalon showing the periventricular localization of lamprey astrocytes. i, Sagittal section (anterior end to the left) of a larval head (brain enclosed within white dashed line) showing the expression of CCN1-5 and OTX2. White arrows point to choroid plexuses. j, k, Expression of TNR (j), HEPACAM (k), and their mouse orthologs on the respective brain atlases. See Supplementary Fig. 2 for ISS section schemes; scale bars, 500 μm.