Figure 2.

Comparison of splice site divergence observed across chromatin categories. (A) The divergence at non-CpG fourfold degenerate and intronic sites on autosomes only, with the divergence observed across the splice sites of the most closed (B) and open (C) genes shown below. (Closed exonic vs. closed intronic Mann-Whitney U test: p = 4.4e-16; open exonic vs. open intronic Mann-Whitney U-test: p = 0.053)