Fig. 4

Domains of XCI and the enrichment of discordant and mostly variable escape genes at boundaries. a Our consensus gene calls and the domains of XCI along the X chromosome. The top row is the XCI status calls for all genes with a call on the X while the second row is the domains of XCI called from the consensus calls (see Section 2). For the XCI status calls, the colors are defined in c. For the domains of XCI: red is subject, green is escape, orange is boundaries, and white space is between domains. A magnification of two regions is shown below, demonstrating how genes line up with domains. Domains are defined by the first and last gene in the domain, even if they start or end inside of other genes which do not share the same domain call. See Additional files 6 and 7 for the BED files used to generate the UCSC browser track upon which this graph is based. b Distribution of genes into XCI status domains. The graph shows what percent of genes with each call are in each domain type. Percent is determined by dividing the number of genes with that XCI status call in that domain type by the total number of genes with that XCI status call. The all calls category includes all genes on the X chromosome, including genes with no calls. c Distribution of genes at boundaries. This figure includes the subject and escape genes which define the edges of the boundaries