<p>Correlations between gene duplicability and connectivity in six species: <i>H. sapien</i> (Hsap), <i>M. musculus</i> (Mmus), <i>D. melanogaster</i> (Dmel), <i>C. elegans</i> (Cele), <i>S. cerevisiae</i> (Scer), and <i>E. coli</i> (Ecol). The ‘Number of gene families’ row contains, for each species, the number of gene families that had at least one member for that species. The ‘Number of genes’ row contains, for each species, the number of genes covered by the gene families. The value is Spearman’s rank correlation coefficient between duplicability and connectivity, and the -value is computed for the correlation.</p