Distribution of average contig read coverage for E. propertius (a) and P. zelicaon (b). On the x axis, contigs are grouped by average read coverage. On the y axis, the bars show the number of contigs in each coverage bin, and the points show the average length of contigs in each coverage bin.
O'Neil et al. BMC Genomics 2010 11:310 doi:10.1186/1471-2164-11-310