The mRNA track includes exon and introns. The exon track just has exons. See the issue.
Next steps in analysis (from this issue):
- Proportion CGs in exons, introns, and mRNA
- Find DMLs and CG motifs within 1000 bp of mRNA, possibly using -iobuf with intersectBed
- Enrichment analysis of mRNA genomic regions. Need to find specific package?