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Table 1 Intron state and counts of introns in different species that are orthologous to 621 human U12-type introns.

From: Evolutionary dynamics of U12-type spliceosomal introns

Compared species Numb. of availa-ble compa-risons Numb. of absent introns Numb. of U2 introns Number of ambi-guous introns Number of U12 introns Proportion of U12 introns shared with the human genome Total number of U12 introns in the genome Proportion of conserved U12 introns in a given genome
Pan troglodytes 486 6 0 7 473 0.973 474 0.998
Macaca mulatta 452 14 1 7 430 0.951 434 0.991
Mus musculus 501 11 0 7 483 0.964 490 0.986
Rattus norvegicus 483 15 1 5 462 0.957 469 0.985
Canis familiaris 516 7 0 11 498 0.965 503 0.990
Bos taurus 469 9 2 9 449 0.957 455 0.987
Monodelphis domestica 440 12 1 5 422 0.959 428 0.986
Gallus gallus 391 13 0 9 369 0.944 373 0.989
Fugu rubripes 333 21 6 5 301 0.904 308 0.977
Danio rerio 301 11 6 10 274 0.910 282 0.972
Ciona intestinalis 154 83 29 1 41 0.266 113 0.363
Apis mellifera 161 122 6 2 31 0.193 34 0.912
Drosophila melanogaster 198 169 18 5 6 0.030 16 0.375
Caenorhabditis elegans 96 80 15 1 0 0.000 0 0.000
Arabidopsis thaliana 2 0 0 0 2 1.000 216 0.009
  1. Results shown were automatically inferred based on information in the U12db [18]. For some species manual adjustment resulted in a different final count of U12 introns.