Fig. 1: Dropout effect in single-cell transcriptome analysis.

a Unbiased clustering of hippocampal cells from mice under normoxia (n = 2) or hypoxia (n = 2), represented in UMAP space, reveals 16 distinct cell populations across conditions [77]. b The extremely low expression of EPOR in these populations, compared to the abundant expression of renin receptor (c), illustrates the partial ‘dropout effect’ of scRNA-seq for EPOR. We note that EPO is not detectable at all using this method.