Extended Data Figure 9: Spermatogenic expression patterns of Y protein-coding genes and along the mouse Y chromosome.
From: Origins and functional evolution of Y chromosomes across mammals

a, Left, expression levels of 4 mouse Y genes with ubiquitous spatial expression profiles across different organs and individual spermatogenic cell types. Right, expression levels of 7 mouse Y genes with testis-specific expression across organs and cell types. b, Top, spermatogenic expression of protein-coding genes located in the Y-conserved region (YCR). Lower panel: Expression of 31 reconstructed Y-linked transcript contigs (including unknown presumably noncoding sequences, the known protein-coding genes SLY and SSTY; all with more than 10 copies) along the ampliconic region of the mouse Y chromosome. Genes and contigs were mapped to 1,452 positions using BLASTn to the assembled mouse Y chromosome from genome version GRCm38 (ref. 65).