Fig. 1

Pairwise length difference between orthologous genes. Bars indicate the number of genes with that difference in length (calculated in number of nucleotides in the annotated transcripts) for each pair of species. Green shades indicate differences lower than 50 bp while orange to red indicate larger differences. The comparison is showed for (a) the published annotations, b the direct re-annotation of the published genomes and c the reciprocal re-annotation of the published genomes