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. 2021 Apr 28;594(7862):227–233. doi: 10.1038/s41586-021-03535-x

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© The Author(s) 2021

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Fig. 2 — a, Alignment between the marmoset X and Y chromosome reveals a PAR of around 1 Mb in each chromosome. Dashed lines show the boundaries between the PAR and SDR. Alignment between the human and marmoset X chromosome also reveals different PABs between the two species, and an inversion near the marmoset PAB. Grey, PAR genes; orange, MSSDR genes; red, ancestral SDR genes. ARSE is also known as ARSL. b, Distribution of ampliconic genes in the marmoset (yellow) and human (purple) X chromosome. Green, genes that are ampliconic in both species. The copy number for each ampliconic gene is shown in parentheses. Asterisks indicate partial genes. Ampliconic genes with testis-specific expression are shown as the bottom half of the panel for each species. IDS2 is also known as IDSP1.