Mapping success of simulated reads.

<p>Reads simulated with average expected differences between 0 and 24% from target exons on the reference sequence, mapped against the entire <i>Xenopus tropicalis</i> genome. A) Number of simulated reads (out of 2×10⁷) mapped to the correct target exon in the genome. B) Number of simulated reads mapped to the incorrect target exon on the reference genome.