Assembly and predicted peptide statistics. (A) Unigene length distribution after multi-library assembly. There are 12 additional unigenes longer than 4600 bases, not shown on the plot, with the longest one being 9189 bases. (B) Unigene coverage (reads per unigene). (C) Serial clustering of predicted proteins based on the cork oak unigenes, and of the predicted proteins from the genomes of two model plant species.