Extended Data Fig. 8: Phylostratigraphic analysis of single-cell gene expression clusters.
From: The genomic origin of the unique chaetognath body plan
a-b,Transcriptome Age Index (AI) calculated using gene age derived from GenEra that relies on blast similirity search (a) and from the age of inferred Broccoli gene families (b). c, Phylostratigraphic distribution of cell-type marker genes in P. gotoi and other species considered according to the age of Broccoli gene families. d, Number of cell-types belonging to broad functional categories in the different species for which we compared single-cell datasets.
