Figure 3From: Patterns of intron sequence evolution in Drosophila are dependent upon length and GC contentThe relationship between intron fragment GC content and both divergence and length. (a) The relationship between GC content of intron fragments and divergence between D. melanogaster and D. simulans (Spearman correlation coefficient R s = -0.345, P < 10-4). (b) The relationship between GC content of intron fragments and intron length (R s = 0.237, P < 10-3).Back to article page