Table S1. Genome characteristics of 26 fully sequenced animals. Species Aedes aegypti Anopheles gambiae Apis mellifera Bombyx mori Bos taurus Caenorhabditis briggsae Caenorhabditis elegans Canis familiaris Ciona intestinalis Danio rerio Daphnia pulex Drosophila melanogaster Drosophila mojavensis Drosophila pseudoobscura Drosophila yakuba Gallus gallus Homo sapiens Macaca mulatta Monodelphis domestica Mus musculus Pan troglodytes Rattus norvegicus Strongylocentrotus purpuratus Takifugu rubripes Tribolium castaneum Xenopus tropicalis 1. 2. 3. 4. Genome size [MB] 1,380.0 258.6 260.0 470.0 1,743.1 104.0 100.3 2,443.8 156.0 1,097.9 199.0 118.3 193.8 150.0 168.6 939.6 3,080.9 3,543.0 3,475.0 2,621.5 3,109.2 2,717.8 814.0 365.0 160.0 1,700.0 Recombination rate [cM/Mb] 0.16 0.83 15.70 7.30 1.69 2.64 2.74 1.04 20.21 2.91 6.95 2.44 3.05 3.75 2.33 4.29 1.17 0.58 0.25 0.65 0.81 0.62 4.38 3.32 3.57 0.73 AT-content 0.622 0.554 0.673 0.675 0.572 0.626 0.646 0.587 0.650 0.637 0.620 0.575 0.605 0.548 0.577 0.589 0.591 0.585 0.623 0.583 0.598 0.581 0.631 0.555 0.669 0.550 GC-mutational Chromosome Taxonomy References pressure number [n] 3 Insect 1; 2 0.786 3 Insect 3; 4 0.418 16 Insect 5; 6 1.271 28 Insect 7; 8 1.089 30 Mammal 9; 10 0.636 6 Nematode 11; 12 1.880 6 Nematode 12; 13 1.842 39 Mammal 14; 15 0.633 14 Ascidian 16; 17 1.649 25 Fish 18; 19 0.907 12 Crustacean 20; 21 1.012 4 Insect 22; 23 0.543 4 Insect 24; 25 0.621 5 Insect 25; 26 0.401 4 Insect 25; 27 0.469 39 Bird 28; 29 0.815 23 Mammal 30; 31 0.734 21 Mammal 32; 33 0.679 9 Mammal 34 0.909 20 Mammal 35; 36 0.779 24 Mammal 37 0.615 21 Mammal 38; 39 0.732 20 Echinoderm 40; 41 1.298 22 Fish 42; 43 0.546 10 Insect 44; 45 0.578 18 Frog 46; 47 1.201 Nene, V. et al. 2007. 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